CN106952668A - Multifunction laser fusion diagnoses interferometer - Google Patents
Multifunction laser fusion diagnoses interferometer Download PDFInfo
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- CN106952668A CN106952668A CN201710223183.7A CN201710223183A CN106952668A CN 106952668 A CN106952668 A CN 106952668A CN 201710223183 A CN201710223183 A CN 201710223183A CN 106952668 A CN106952668 A CN 106952668A
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- 230000004927 fusion Effects 0.000 title claims abstract description 23
- 239000000523 sample Substances 0.000 claims abstract description 97
- 238000003384 imaging method Methods 0.000 claims abstract description 58
- 230000003287 optical effect Effects 0.000 claims abstract description 53
- 238000005286 illumination Methods 0.000 claims abstract description 11
- 239000013078 crystal Substances 0.000 claims description 28
- BJQHLKABXJIVAM-UHFFFAOYSA-N bis(2-ethylhexyl) phthalate Chemical compound CCCCC(CC)COC(=O)C1=CC=CC=C1C(=O)OCC(CC)CCCC BJQHLKABXJIVAM-UHFFFAOYSA-N 0.000 claims description 22
- 230000010287 polarization Effects 0.000 claims description 21
- 238000000034 method Methods 0.000 claims description 5
- 230000000243 photosynthetic effect Effects 0.000 claims description 2
- 239000012634 fragment Substances 0.000 claims 1
- 230000035939 shock Effects 0.000 abstract description 20
- 230000008859 change Effects 0.000 abstract description 13
- 238000003745 diagnosis Methods 0.000 abstract description 8
- 238000011160 research Methods 0.000 abstract description 7
- 238000010521 absorption reaction Methods 0.000 abstract description 4
- 238000005305 interferometry Methods 0.000 abstract description 4
- 230000035559 beat frequency Effects 0.000 abstract description 3
- 238000012545 processing Methods 0.000 abstract description 3
- 230000008901 benefit Effects 0.000 abstract description 2
- 239000000463 material Substances 0.000 description 7
- 238000002474 experimental method Methods 0.000 description 6
- 238000004458 analytical method Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 3
- 230000001427 coherent effect Effects 0.000 description 3
- 238000000205 computational method Methods 0.000 description 3
- 239000000835 fiber Substances 0.000 description 3
- 230000004888 barrier function Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 230000001934 delay Effects 0.000 description 2
- 230000003111 delayed effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000000608 laser ablation Methods 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 238000002310 reflectometry Methods 0.000 description 2
- 230000001154 acute effect Effects 0.000 description 1
- 230000003321 amplification Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
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- 230000009977 dual effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
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- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 239000013307 optical fiber Substances 0.000 description 1
- 239000008188 pellet Substances 0.000 description 1
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Classifications
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- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21B—FUSION REACTORS
- G21B1/00—Thermonuclear fusion reactors
- G21B1/11—Details
- G21B1/23—Optical systems, e.g. for irradiating targets, for heating plasma or for plasma diagnostics
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B9/00—Measuring instruments characterised by the use of optical techniques
- G01B9/02—Interferometers
- G01B9/02015—Interferometers characterised by the beam path configuration
- G01B9/02029—Combination with non-interferometric systems, i.e. for measuring the object
- G01B9/0203—With imaging systems
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B9/00—Measuring instruments characterised by the use of optical techniques
- G01B9/02—Interferometers
- G01B9/02041—Interferometers characterised by particular imaging or detection techniques
- G01B9/02045—Interferometers characterised by particular imaging or detection techniques using the Doppler effect
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J11/00—Measuring the characteristics of individual optical pulses or of optical pulse trains
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
- Y02E30/10—Nuclear fusion reactors
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- Engineering & Computer Science (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Plasma & Fusion (AREA)
- General Engineering & Computer Science (AREA)
- High Energy & Nuclear Physics (AREA)
- Instruments For Measurement Of Length By Optical Means (AREA)
Abstract
Interferometer is diagnosed the invention discloses a kind of multifunction laser fusion, including illumination camera lens, beam splitter one, beam splitter two, first imaging lens, imaging lens two, imaging lens three, streak camera one, streak camera two, streak camera three, optical circulator module, probe light are passed as module, intervention module one and intervention module two.The multifunction laser fusion provided using the present invention diagnoses interferometer, structure is novel, it is easily achieved, traditional line VISAR receipts light light path can be shared, remain traditional wire VISAR interferometry shock velocity modules, probe laser is taken full advantage of by improving light path, change obtaining tracking probe optical absorption intensity while interference beat frequency calculates shock wave superficial velocity with shock wave interface, and coordinate suitable image processing meanses, more states of matter information can will be obtained, be conducive to further states of matter diagnosis research.
Description
Technical field
The invention belongs to laser measuring technique field, and in particular to a kind of multifunction laser fusion diagnoses interferometer.
Background technology
It, using one of effective ways of fusion energy resource, is also high-energy-density physics that laser ablation pellet, which produces implosion to be both,
The laboratory facilities of research.In compression process, material is often in the extremity of HTHP, during high-order harmonics spectrum
Between only in nanosecond order, the acquisition of states of matter information needs to use special method.It is any anti-in laser inertial confinement diagnostic field
Penetrate face velocity interferometer (Velocity Interferometer System for Any Reflector, be abbreviated as VISAR)
The change of the difference frequency moving interference fringes amount that is produced using optical Doppler effect measures the shock velocity in compression process,
Condition can be provided for solving state equation.Polytype has been developed in present VISAR, typically such as line VISAR, face
VISAR and optical fiber V ISAR, three of the above VISAR diagnosis capability is substantially improved, and is widely used in impact wave measurement neck
Domain.
But, laser ablation process is extremely short and complicated, only by this parameter of acquisition shock wave superficial velocity
Still it is difficult to the whole states of matter change of accurate reproduction.Each experiment hair time is expensive, and experimental situation difference correspondence states of matter letter
Breath situation is also different.Therefore more diagnostic messages are obtained in same experiment hair time and seems particularly significant.VISAR into
As during, it is often the case that having, local striped disappears or acute variation occurs for striped brightness, causes stripe pattern
Quality Down.The appearance of this case is largely because interface to the absorption of probe light or due to interface shape change
Interferometer is caused to receive light change.The decline of stripe pattern quality is not only read to specific shock velocity and brings difficulty, and
The erroneous judgement of diagnosis physical mechanism can be caused.
As shown in Fig. 7~Fig. 9, traditional line VISAR probe laser is incident through illuminating camera lens 1 ', is transferred to the first beam splitting
Mirror 2 ', is divided into two beams by the first beam splitter 2 ', and a branch of to be absorbed by light barrier 4 ', another beam is focused on target surface 3 '；From target surface 3 '
The Doppler signal optical transport reflected can be divided into two beams, a branch of return by the first beam splitter 2 ' again to the first beam splitter 2 '
To at light source, another beam is divided into two beams after being transferred on the second beam splitter 5 ', respectively enters two sets of intervention modules, is ultimately imaged
On the first streak camera 6 ' and the second streak camera 7 '.Wherein, the probe laser for having half is absorbed by light barrier 4 ', and also one
Doppler signal light that half target surface 3 ' is reflected back returns to light source and not utilized.
The content of the invention
To solve above technical problem, the present invention provides a kind of multifunction laser fusion diagnosis interferometer, and it can be shared
Traditional VISAR receipts light light path, remains traditional VISAR interferometries shock velocity module, realizes laser-produced fusion experiment
Diagnosed while middle shock velocity, plasma temperature, surface deformation.
To achieve the above object, technical solution of the present invention is as follows：
A kind of multifunction laser fusion diagnoses interferometer, and it is characterized by：Including illumination camera lens, beam splitter one, beam splitter
2nd, imaging lens are first, imaging lens two, imaging lens three, streak camera one, streak camera two, streak camera three, optical circulator
Module, probe light are passed as module, intervention module one and intervention module two；The a branch of probe laser projected by illumination camera lens is through the ring of light
Shape device module directive beam splitter one, is divided into two beams by beam splitter one；Wherein a branch of probe laser is used to focus on target surface and reflect
Doppler signal light is returned, the Doppler signal light is divided into two beams by beam splitter one, wherein a branch of Doppler signal light is successively through light
Circulator module and imaging lens three are imaged on streak camera three, and another beam Doppler signal light is separated into two by beam splitter two
Beam, wherein a branch of Doppler signal light is imaged on streak camera one through intervention module one and imaging lens are first successively, another beam
Doppler signal light is imaged on streak camera two through intervention module two and imaging lens two successively；Another beam probe laser is by visiting
Pin light biography is divided into three beams as module, wherein the imaged camera lens one of a branch of probe laser is imaged on streak camera one, another beam is visited
The imaged camera lens two of pin laser is imaged on streak camera two, is left a branch of imaged camera lens three of probe laser and is imaged on striped phase
On machine three.
There is interference fringe, target surface picture and light source simultaneously using above structure, on streak camera one and streak camera two (to visit
Pin laser) picture, shock wave superficial velocity can be calculated not only through interference fringe and target surface picture, and the picture of light source is used
It is used as the reference image of interference fringe, can be used in analysis probe light and reflected by the amount that shock wave interface or window material absorb
The research of rate, plasma interface temperature can be diagnosed by being aided with suitable computational methods；Light source is able to record that on streak camera three
Picture and target surface picture, can by judge record picture change in shape, analyze impact material surface change in shape；Therefore,
The present invention can share traditional line VISAR receipts light light path, remain traditional wire VISAR interferometry shock velocity moulds
Block, probe laser is taken full advantage of by improving light path, obtain interference beat frequency calculate shock wave superficial velocity while with
Track probe optical absorption intensity changes with shock wave interface, and coordinates suitable image processing meanses, can will obtain more things
State information, is conducive to further states of matter diagnosis research.
As preferred：The optical circulator module includes birefringece crystal one, 45 ° of reciprocity optical rotation plates, 45 ° of Faraday rotations
Piece, birefringece crystal two, reflective mirror one, reflective mirror two, polarization spectroscope, reflective mirror three, reflective mirror four and reflective mirror five；From photograph
The incident a branch of probe laser of bright mirror head is divided into two beams by birefringece crystal two, and two beam probe lasers revolve through 45 ° of faraday successively
Directive birefringece crystal one after rotor and 45 ° of reciprocity optical rotation plates, by birefringece crystal one by two beam probe lasers be combined into it is a branch of after
Outgoing；It is divided into two beams from the incident a branch of Doppler signal light of beam splitter one by birefringece crystal one, wherein a branch of Doppler believes
Number light directive polarization spectro after 45 ° of reciprocity optical rotation plates, 45 ° of Faraday rotation pieces, birefringece crystal two and reflective mirror three successively
Mirror, another beam Doppler signal light is successively through 45 ° of reciprocity optical rotation plates, 45 ° of Faraday rotation pieces, birefringece crystal two, reflective mirrors
First, directive polarization spectroscope after reflective mirror four, reflective mirror five, reflective mirror two, by polarization spectroscope by two beam Doppler signal light
It is combined into a branch of rear outgoing.Using above structure, the incident probe laser of optical circulator module is divided into polarization side through birefringece crystal
To mutually perpendicular two-beam, two-beam is after 45 ° of Faraday rotation pieces and 45 ° of reciprocity optical rotation plates, and polarization direction occurs 90 °
Rotation, finally at birefringece crystal, two-beam reflects and synthesizes a branch of outgoing again；Incident how general of optical circulator module
Strangle flashlight and the mutually perpendicular two-beam in polarization direction is first divided into by birefringece crystal, two-beam is through 45 ° of reciprocity optical rotation plates and 45 °
After Faraday rotation piece, the polarization state of two-beam remains unchanged, reflective mirror one, reflective mirror two, reflective mirror four and reflective mirror five
It is used to keep light path consistent for extending the light path of wherein light beam, another light beam reflects at reflective mirror three, then two-beam
Outgoing after merging at polarization spectroscope；Optical circulator module is realized the half Doppler signal light-output of script loss simultaneously
Reuse function.
As preferred：The probe light is passed as module includes reflective mirror six, collimating mirror one, beam splitter three, the and of beam splitter four
Beam splitter five；From the incident a branch of probe laser of the beam splitter one successively directive beam splitter three after reflective mirror six and collimating mirror one,
Two beams are divided into by beam splitter three, wherein a branch of probe laser is to the outgoing of imaging lens three, another beam probe laser is by beam splitter four
Be divided into two beams, wherein a branch of probe laser is separated into two beams by beam splitter five, wherein a branch of probe laser to imaging lens it is first go out
Penetrate, another beam probe laser is to the outgoing of imaging lens two.Using above structure, passed by probe light as module loses script
Utilized after the export of half probe laser, after first being adjusted through reflective mirror six and collimating mirror one, a part is to the outgoing of imaging lens three, separately
A part is divided into two beams by beam splitter four, respectively to imaging lens are first and imaging lens and outgoing.
As preferred：Plus lens and collimating mirror two are provided between the beam splitter three and imaging lens three, wherein, institute
Plus lens is stated to be located between beam splitter three and collimating mirror two.Using above structure, traditional line VISAR, which has, to be zoomed into as work(
Can, probe laser can reduce the picture of light source after plus lens, after the collimated mirror two of probe light, with optical circulator module
Outgoing Doppler signal light is coupled on imaging len three, and is ultimately imaged on streak camera three.
As preferred：Reflective mirror seven and reflective mirror eight are provided between the beam splitter five and imaging lens are first, wherein, institute
Reflective mirror seven is stated to be located between beam splitter five and reflective mirror eight；There is reflective mirror between the beam splitter five and imaging lens two
9th, reflective mirror ten and reflective mirror 11, wherein, the reflective mirror nine is close to beam splitter five, and the reflective mirror 11 is close to imaging
Camera lens two, the reflective mirror ten is located between reflective mirror nine and reflective mirror 11.Using above structure, by reflective mirror seven, anti-
Light microscopic eight, reflective mirror nine, the setting of reflective mirror ten and reflective mirror 11, adjustment phase place attitude and can extend light path, make light path
It is consistent.
As preferred：The intervention module one includes collimating mirror three, beam splitter six, reflective mirror 12 and etalon reflective mirror
One；From the incident a branch of Doppler signal light of the beam splitter two successively collimated directive beam splitter six of mirror three, it is divided into by beam splitter six
Two beams, wherein a branch of Doppler signal light is by the directive beam splitter six of reflective mirror 12, another beam Doppler signal light is through etalon
Reflective mirror one be delayed after directive beam splitter six, beam splitter six is respectively to by incident more of reflective mirror 12 and etalon reflective mirror one
General Le signal combiner is converged, and wherein a branch of Doppler signal light of convergence formation is to the first outgoing of imaging lens.Use with
Upper structure, Doppler signal light can mutually be molded the outgoing coherent light beam of camera lens one through intervention module one, so that on streak camera one
Imaging has interference fringe, and eventually through physical model calculating shock wave superficial velocity.
As preferred：The intervention module two includes collimating mirror four, reflective mirror 13, beam splitter seven, the and of reflective mirror 14
Etalon reflective mirror two；From the incident a branch of Doppler signal light of beam splitter two successively collimated mirror four and reflective mirror 13 directive
Beam splitter seven, is divided into two beams by beam splitter seven, wherein a branch of Doppler signal light is by the directive beam splitter seven of reflective mirror 14, it is another
Beam Doppler signal light be delayed by etalon reflective mirror two after directive beam splitter seven, beam splitter seven is respectively to by the He of reflective mirror 14
The incident Doppler signal combiner of etalon reflective mirror two is converged, wherein a branch of Doppler signal light of convergence formation to
The outgoing of imaging lens two.Using above structure, Doppler signal light can mutually be molded the outgoing of camera lens two through intervention module two and be concerned with
Light, so that imaging has interference fringe on streak camera two, and impacts wave surface speed eventually through physical model calculating
Degree, wherein, etalon reflective mirror two is different from the thickness of the etalon reflective mirror one of intervention module one, it is therefore an objective to form double sensitive
Degree measurement.
As preferred：Collimating mirror five is provided with the front end of the beam splitter one and optical lens is received, wherein, the collimating mirror
Five are located between beam splitter one and receipts optical lens.That is collimating mirror five and receipts optical lens is located between beam splitter one and target surface, probe
After the collimated mirror five of laser is collimated, then target surface focused on by receipts optical lens, be finally reflected back from target surface with many of difference frequency information
General Le flashlight.
As preferred：Collimating mirror six is provided between the optical circulator module and beam splitter one.Using above structure, lead to
The probe laser for crossing the focus ring shape device module outgoing of collimating mirror six is collimated.
As preferred：Reflective mirror 15 is provided between the polarization spectroscope and imaging lens three.Tied more than
Structure, being capable of adjustment phase place attitude by reflective mirror 15.
Compared with prior art, the beneficial effects of the invention are as follows：
The multifunction laser fusion provided using the present invention diagnoses interferometer, and structure is novel, it is easy to accomplish, biography can be shared
The line VISAR of system receipts light light path, remains traditional wire VISAR interferometry shock velocity modules, is filled by improving light path
Point make use of probe laser, obtain while interference beat frequency calculates shock wave superficial velocity tracking probe optical absorption intensity with
Shock wave interface changes, and coordinates suitable image processing meanses, can will obtain more states of matter information, be conducive to further
States of matter diagnosis research.
Brief description of the drawings
Fig. 1 is structural representation of the invention；
Fig. 2 is light path schematic diagram of the probe laser in optical circulator module；
Fig. 3 is light path schematic diagram of the Doppler signal light in optical circulator module；
Fig. 4 is that probe light is passed as the structural representation of module；
Fig. 5 is the structural representation of intervention module one；
Fig. 6 is the structural representation of intervention module two；
Fig. 7 is traditional wire VISAR structural representation；
Fig. 8 is light path schematic diagram of the traditional wire VISAR probe laser at the first beam splitter；
Fig. 9 is light path schematic diagram of the traditional wire VISAR Doppler signal light at the first beam splitter.
Embodiment
The invention will be further described with accompanying drawing with reference to embodiments.
As shown in figure 1, a kind of multifunction laser fusion diagnosis interferometer, including lighting fiber 1, illumination camera lens 2, beam splitter
One 4, beam splitter 27, imaging lens first 8, imaging lens 2 10, imaging lens 35, streak camera 1, streak camera 2 11,
Streak camera 36, optical circulator modules A, probe light are passed as module B, the C of intervention module one and the D of intervention module two.Probe laser
(laser illuminator) is incident by lighting fiber 1, and illumination camera lens 2 is collected, and probe laser focuses on target surface 3 and is reflected back with difference frequency signal
Doppler signal light, after Doppler signal light beam splitting by optical circulator modules A, probe light pass as module B, intervention module one
The C and D of intervention module two, finally, while recording interference fringe, target surface picture and light on streak camera 1 and streak camera 2 11
The picture in source (probe laser), shock wave superficial velocity can be calculated not only through interference fringe and target surface picture, and by light source
Picture be used as the reference image of interference fringe, can be used in the amount that analysis probe light is absorbed by shock wave interface or window material
That is the research of reflectivity, plasma interface temperature can be diagnosed by being aided with suitable computational methods, on streak camera 36 simultaneously
The picture and target surface picture of recording light source, the change in shape for the picture that can be recorded by judgement, the shape of analysis impact material surface become
Change.
Fig. 1 and Fig. 2 are referred to, a branch of probe laser directive optical circulator modules A projected by illumination camera lens 2, the ring of light
Shape device modules A include the a1 of birefringece crystal one, 45 ° of reciprocity optical rotation plate a2,45 ° of Faraday rotation piece a3, the a4 of birefringece crystal two,
The a5 of reflective mirror one, the a6 of reflective mirror two, polarization spectroscope a7, the a8 of reflective mirror three, the a9 of reflective mirror four and the a10 of reflective mirror five.Ring of light shape
The characteristics of device modules A is the non reversibility of light path, and from the light beam of optical circulator modules A outgoing compared with incident light beam,
Phase, shape, polarization feature will not change.Wherein, the a1 of birefringece crystal one and the a4 of birefringece crystal two be can
Light is set to produce the optical element of birefringent phenomenon, 45 ° of reciprocity optical rotation plate a2 are used for rotating the polarization direction of linearly polarized light, and not
Change the characteristic of linearly polarized light, 45 ° of Faraday rotation piece a3 are so that rotation effect occurs in medium using externally-applied magnetic field.
Specifically, Fig. 1 and Fig. 2 are referred to, from the incident a branch of probe laser of illumination camera lens 2 by the a4 of birefringece crystal two
It is divided into two beams, the two beam probe lasers directive birefringece crystal after 45 ° of Faraday rotation piece a3 and 45 ° of reciprocity optical rotation plate a2 successively
Two beam probe lasers are combined into a branch of rear outgoing, the collimated mirror 6 14 of probe laser of outgoing by one a1 by the a1 of birefringece crystal one
Directive beam splitter 1 after collimation, is divided into two beams by beam splitter 1, wherein a branch of probe laser directive probe light is passed as module B,
Another beam probe laser focuses on target surface 3 after first collimated mirror 5 12 is collimated, then through receiving optical lens 13, and target surface 3 is by probe laser
Irradiate back reflection to return to carry the Doppler signal light of difference frequency information, returned to point through receiving optical lens 13 and collimating mirror 5 12 successively
Shu Jingyi 4, and two beam Doppler signal light are divided into by beam splitter 1.
Fig. 1 and Fig. 3 are referred to, after the collimated mirror 6 14 of wherein a branch of Doppler signal light that beam splitter 1 is separated is collimated
Into optical circulator modules A, specifically, from the incident a branch of Doppler signal light of beam splitter 1 by the a1 of birefringece crystal one
It is divided into two beams, wherein a branch of Doppler signal light is brilliant through 45 ° of reciprocity optical rotation plate a2,45 ° of Faraday rotation piece a3, birefringences successively
Directive polarization spectroscope a7 after the a4 of the body two and a8 of reflective mirror three, another beam Doppler signal light successively through 45 ° of reciprocity optical rotation plate a2,
45 ° of Faraday rotation piece a3, the a4 of birefringece crystal two, the a5 of reflective mirror one, the a9 of reflective mirror four, the a10 of reflective mirror five, the a6 of reflective mirror two
Directive polarization spectroscope a7 afterwards, by polarization spectroscope a7 by two beam Doppler signals it is photosynthetic be a branch of rear outgoing, close many after beam
General Le flashlight directive imaging lens 35 after reflective mirror 15, and be finally imaged in streak camera 6, i.e., on streak camera 6
Record target surface picture.
Refer to Fig. 1, another beam Doppler signal light directive beam splitter 27 that beam splitter 1 is separated, by beam splitter 27
Two beams are separated into, wherein a branch of Doppler signal light is imaged on streak camera one through the C of intervention module one and imaging lens first 8 successively
On 9, another beam Doppler signal light is imaged on streak camera 2 11 through the D of intervention module two and imaging lens 2 10 successively.
Specifically, Fig. 5 is referred to, the C of intervention module one includes the c1 of collimating mirror three, the c2 of beam splitter six, reflective mirror ten
The two c3 and c4 of etalon reflective mirror one, from the incident a branch of Doppler signal light of the beam splitter 27 successively collimated c1 directives of mirror three
The c2 of beam splitter six, is divided into two beams by the c2 of beam splitter six, wherein a branch of Doppler signal light is by the c3 directive beam splitters of reflective mirror 12
Six c2, another beam Doppler signal light c2 of directive beam splitter six after the c4 of etalon reflective mirror one delays, the c2 of beam splitter six difference
To being converged by the incident Doppler signal combiners of the c3 of the reflective mirror 12 and c4 of etalon reflective mirror one, its of formation is converged
In a branch of Doppler signal light to first 8 outgoing of imaging lens, the imaged camera lens 1 of the coherent light is imaged on streak camera 1,
Recording interference fringe and target surface picture i.e. on streak camera 1.
Refer to Fig. 6, the D of intervention module two includes the d1 of collimating mirror four, the d2 of reflective mirror 13, the d3 of beam splitter seven, reflective
The d4 of the mirror 14 and d5 of etalon reflective mirror two.From the incident a branch of Doppler signal light of the beam splitter 27 successively collimated d1 of mirror four
With the d3 of 13 d2 directives beam splitter of reflective mirror seven, two beams are divided into by the d3 of beam splitter seven, wherein a branch of Doppler signal light is by reflective
The d3 of 14 d4 directives beam splitter of mirror seven, another beam Doppler signal light is by directive beam splitter seven after the d5 of etalon reflective mirror two delays
D3, the d3 of beam splitter seven by Doppler signal the combiner incident d4 of the reflective mirror 14 and d5 of etalon reflective mirror two respectively to being carried out
Convergence, converges the wherein a branch of Doppler signal light formed to the outgoing of imaging lens 2 10, the imaged camera lens 2 10 of the coherent light
It is imaged on streak camera 2 11, i.e., recording interference fringe and target surface picture on streak camera 2 11.It is pointed out that interference
The D of module two d5 of etalon reflective mirror two is different from the C of intervention module one c4 of etalon reflective mirror one thickness, it is therefore an objective to formed
Dual sensitivity is measured, and completes the collection of difference frequency interference pattern.
Fig. 1 and Fig. 4 are referred to, is passed from another beam probe laser of the outgoing of beam splitter 1 by probe light as module B is divided into three
Beam, wherein the imaged camera lens 1 of a branch of probe laser is imaged on streak camera 1, another imaged camera lens of beam probe laser
2 10 are imaged on streak camera 2 11, are left a branch of imaged camera lens 35 of probe laser and are imaged on streak camera 36.
Specifically, Fig. 4 is referred to, the probe light is passed as module B includes the b1 of reflective mirror six, the b2 of collimating mirror one, beam splitting
It is the b3 of mirror three, plus lens b4, the b5 of collimating mirror two, the b6 of beam splitter four, the b7 of beam splitter five, the b8 of reflective mirror seven, the b9 of reflective mirror eight, reflective
The b10 of mirror nine, the b11 of reflective mirror ten and the b12 of reflective mirror 11.From the incident a branch of probe laser of beam splitter 1 successively through reflective mirror
The b3 of directive beam splitter three after the six b1 and b2 of collimating mirror one, is divided into two beams by the b3 of beam splitter three.
Wherein a branch of probe laser of the b3 outgoing of beam splitter three is successively to imaging after plus lens b4 and the b5 of collimating mirror two
The outgoing of camera lens 35.Wherein, because traditional line VISAR has amplification imaging function, probe laser can be with after plus lens b4
The picture of light source is reduced, after the collimated b5 of mirror two of probe laser, the outgoing Doppler signal light with optical circulator modules A is in imaging
Couple, and be ultimately imaged on streak camera 36 on lens 35, make the picture and target surface that light source is able to record that on streak camera 36
Picture, the change in shape for the picture that can be recorded by judgement, analyzes the change in shape of impact material surface.
Another beam probe laser of the b3 outgoing of beam splitter three is divided into two beams by the b6 of beam splitter four, wherein a branch of probe laser is anti-
Light path is projected, plays a part of weakening probe light half light intensity, the light intensity reflected can also be with the C of intervention module one and interference mould
The Doppler signal light do not used in the D of block two join together continue diagnose different directions impact wave surface (this method is referred to
The patent application of Application No. 201610483038.8).Another beam probe laser is separated into two beams by the b7 of beam splitter five.Wherein one
Beam probe laser is successively after the b8 of reflective mirror seven and the b9 of reflective mirror eight to first 8 outgoing of imaging lens, the first 8 convergence interference of imaging lens
The Doppler signal light of the C outgoing of module one and the probe laser of the b9 outgoing of reflective mirror eight, are imaged, i.e. bar on bar shaped camera 1
Record has interference fringe, target surface picture, the picture of light source simultaneously on shape camera 1.Another beam probe laser is successively through reflective mirror nine
After b10, the b11 of reflective mirror ten and the b12 of reflective mirror 11 intervention module two is converged to the outgoing of imaging lens 2 10, imaging lens 2 10
The Doppler signal light of D outgoing and the probe laser of the b12 outgoing of reflective mirror 11, are imaged, i.e. bar shaped on bar shaped camera 2 11
Record has interference fringe, target surface picture, the picture of light source simultaneously on camera 2 11.On streak camera 1 and streak camera 2 11 simultaneously
There is the picture of interference fringe, target surface picture and light source (probe laser), punching can be calculated not only through interference fringe and target surface picture
Wave table face velocity is hit, and the picture of light source is used as the reference image of interference fringe, can be used in analysis probe light and impacted
The amount that ripple interface or window material absorb is the research of reflectivity, and plasma interface can be diagnosed by being aided with suitable computational methods
Temperature.
Since then, the present invention realizes shock wave superficial velocity, plasma temperature, surface deformation in laser-produced fusion experiment
Diagnosis, is conducive to the states of matter analysis under laser-produced fusion experiment, strong experimental method is provided for high-energy-density physical study.
The course of work of the present invention is as follows：
Probe laser is incident from lighting fiber 1, after being collected by illumination camera lens 2, successively through optical circulator modules A and collimating mirror
6 14 directive beam splitters 1, are divided into two beams by beam splitter 1：Wherein a branch of probe laser directive probe light is passed as after module B points
For three beams, wherein the imaged camera lens 1 of a branch of probe laser is imaged on streak camera 1, another beam probe laser is imaged
Camera lens 2 10 is imaged on streak camera 2 11, is left a branch of imaged camera lens 35 of probe laser and is imaged on streak camera 36
On；Another beam probe laser successively collimated mirror 5 12 and receive optical lens 13 after focus on target surface 3, target surface 3 is shone by probe laser
Penetrate back reflection to return to carry the Doppler signal light of difference frequency information, Doppler signal light is successively through receiving optical lens 13 and collimating mirror five
12 return to beam splitter 1, and it is more by beam splitter 1 to be divided into two beams, wherein a branch of Doppler signal light is through optical circulator modules A
It is imaged on after imaging lens 35 on streak camera 36, another beam Doppler signal light is separated into two beams by beam splitter 27, its
In a branch of Doppler signal light be imaged on successively through the C of intervention module one and imaging lens first 8 on streak camera 1, another beam is more
General Le flashlight is imaged on streak camera 2 11 through the D of intervention module two and imaging lens 2 10 successively.
Finally it should be noted that foregoing description is only the preferred embodiments of the present invention, the ordinary skill people of this area
Member on the premise of without prejudice to present inventive concept and claim, can make table as multiple types under the enlightenment of the present invention
Show, such conversion is each fallen within protection scope of the present invention.
Claims (10)
1. a kind of multifunction laser fusion diagnoses interferometer, it is characterised in that：Including illumination camera lens (2), beam splitter one (4), divide
Beam mirror two (7), imaging lens first (8), imaging lens two (10), imaging lens three (5), streak camera one (9), streak camera two
(11), streak camera three (6), optical circulator module (A), probe light are passed as module (B), intervention module one (C) and intervention module
Two (D)；
The a branch of probe laser projected by illumination camera lens (2) is through optical circulator module (A) directive beam splitter one (4), by beam splitter
One (4) are divided into two beams；
Wherein a branch of probe laser is used to focus on target surface (3) and is reflected back Doppler signal light, and the Doppler signal light is by dividing
Shu Jingyi (4) is divided into two beams, wherein a branch of Doppler signal light successively through optical circulator module (A) and imaging lens three (5) into
As on streak camera three (6), another beam Doppler signal light is separated into two beams by beam splitter two (7), wherein a branch of Doppler
Flashlight is imaged on streak camera one (9) through intervention module one (C) and imaging lens first (8) successively, another beam Doppler letter
Number light is imaged on streak camera two (11) through intervention module two (D) and imaging lens two (10) successively；
Another beam probe laser is passed as module (B) is divided into three beams, wherein the imaged camera lens one (8) of a branch of probe laser by probe light
It is imaged on streak camera one (9), another imaged camera lens two (10) of beam probe laser is imaged on streak camera two (11), remains
Under a branch of imaged camera lens three (5) of probe laser be imaged on streak camera three (6).
2. multifunction laser fusion according to claim 1 diagnoses interferometer, it is characterised in that：The optical circulator module
(A) birefringece crystal one (a1), 45 ° of reciprocity optical rotation plates (a2), 45 ° of Faraday rotation pieces (a3), birefringece crystals two are included
(a4), reflective mirror one (a5), reflective mirror two (a6), polarization spectroscope (a7), reflective mirror three (a8), reflective mirror four (a9) and reflective
Mirror five (a10)；
Be divided into two beams from the incident a branch of probe laser of illumination camera lens (2) by birefringece crystal two (a4), two beam probe lasers according to
The secondary directive birefringece crystal one (a1) after 45 ° of Faraday rotation pieces (a3) and 45 ° of reciprocity optical rotation plates (a2), by birefringece crystal
Two beam probe lasers are combined into a branch of rear outgoing by one (a1)；
It is divided into two beams from the incident a branch of Doppler signal light of beam splitter one (4) by birefringece crystal one (a1), wherein a branch of many
General Le flashlight is successively through 45 ° of reciprocity optical rotation plates (a2), 45 ° of Faraday rotation pieces (a3), birefringece crystal two (a4) and reflective
Mirror three (a8) directive polarization spectroscope (a7) afterwards, another beam Doppler signal light is successively through 45 ° of reciprocity optical rotation plates (a2), 45 ° of methods
Draw revolving fragment (a3), it is birefringece crystal two (a4), reflective mirror one (a5), reflective mirror four (a9), reflective mirror five (a10), reflective
Mirror two (a6) directive polarization spectroscope (a7) afterwards, it is by polarization spectroscope (a7) that two beam Doppler signals are photosynthetic to go out after a branch of
Penetrate.
3. multifunction laser fusion according to claim 1 or 2 diagnoses interferometer, it is characterised in that：The probe light is passed
As module (B) includes reflective mirror six (b1), collimating mirror one (b2), beam splitter three (b3), beam splitter four (b6) and beam splitter five
(b7)；
From the incident a branch of probe laser directive beam splitting after reflective mirror six (b1) and collimating mirror one (b2) successively of beam splitter one (4)
Mirror three (b3), is divided into two beams by beam splitter three (b3), wherein a branch of probe laser is to imaging lens three (5) outgoing, another beam is visited
Pin laser is divided into two beams by beam splitter four (b6), wherein a branch of probe laser is separated into two beams by beam splitter five (b7), wherein one
Beam probe laser is to first (8) outgoing of imaging lens, and another beam probe laser is to imaging lens two (10) outgoing.
4. multifunction laser fusion according to claim 3 diagnoses interferometer, it is characterised in that：In the beam splitter three
(b3) plus lens (b4) and collimating mirror two (b5) are provided between imaging lens three (5), wherein, plus lens (b4) position
Between beam splitter three (b3) and collimating mirror two (b5).
5. multifunction laser fusion according to claim 3 diagnoses interferometer, it is characterised in that：In the beam splitter five
(b7) reflective mirror seven (b8) and reflective mirror eight (b9) are provided between imaging lens first (8), wherein, reflective mirror seven (b8) position
Between beam splitter five (b7) and reflective mirror eight (b9)；
There is reflective mirror nine (b10), reflective mirror ten (b11) and reflective between the beam splitter five (b7) and imaging lens two (10)
Mirror 11 (b12), wherein, the reflective mirror nine (b10) close to beam splitter five (b7), the reflective mirror 11 (b12) close into
As camera lens two (10), the reflective mirror ten (b11) is located between reflective mirror nine (b10) and reflective mirror 11 (b12).
6. multifunction laser fusion according to claim 3 diagnoses interferometer, it is characterised in that：The intervention module one
(C) collimating mirror three (c1), beam splitter six (c2), reflective mirror 12 (c3) and etalon reflective mirror one (c4) are included；
From the incident a branch of Doppler signal light of beam splitter two (7) successively collimated (c1) directive of mirror three beam splitter six (c2), by
Beam splitter six (c2) is divided into two beams, wherein a branch of Doppler signal light is by (c3) directive of reflective mirror 12 beam splitter six (c2), separately
A branch of Doppler signal light directive beam splitter six (c2) after etalon reflective mirror one (c4) delay, beam splitter six (c2) is right respectively
Converged by reflective mirror 12 (c3) and the incident Doppler signal combiner of etalon reflective mirror one (c4), what convergence was formed
Wherein a branch of Doppler signal light is to first (8) outgoing of imaging lens.
7. multifunction laser fusion according to claim 6 diagnoses interferometer, it is characterised in that：The intervention module two
(D) collimating mirror four (d1), reflective mirror 13 (d2), beam splitter seven (d3), reflective mirror 14 (d4) and etalon reflective mirror are included
Two (d5)；
From the incident a branch of Doppler signal light of beam splitter two (7) successively collimated mirror four (d1) and reflective mirror 13 (d2) directive
Beam splitter seven (d3), is divided into two beams by beam splitter seven (d3), wherein a branch of Doppler signal light is by reflective mirror 14 (d4) directive
Beam splitter seven (d3), another beam Doppler signal light is divided by directive beam splitter seven (d3) after etalon reflective mirror two (d5) delay
Beam mirror seven (d3) by reflective mirror 14 (d4) and the incident Doppler signal combiner of etalon reflective mirror two (d5) respectively to being entered
Row convergence, converges the wherein a branch of Doppler signal light formed to imaging lens two (10) outgoing.
8. multifunction laser fusion according to claim 1 or 2 diagnoses interferometer, it is characterised in that：In the beam splitter
The front end of one (4) is provided with collimating mirror five (12) and receives optical lens (13), wherein, the collimating mirror five (12) is located at beam splitter one
(4) between receipts optical lens (13).
9. multifunction laser fusion according to claim 1 or 2 diagnoses interferometer, it is characterised in that：In the ring of light shape
Collimating mirror six (14) is provided between device module (A) and beam splitter one (4).
10. multifunction laser fusion according to claim 2 diagnoses interferometer, it is characterised in that：In the polarization spectro
Reflective mirror 15 (15) is provided between mirror (a7) and imaging lens three (5).
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| CN108036863A (en) * | 2017-12-19 | 2018-05-15 | 中国工程物理研究院激光聚变研究中心 | Wide-range shock velocity diagnostic device and measuring method |
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| CN114993949A (en) * | 2022-05-27 | 2022-09-02 | 中国科学技术大学 | Compact multi-framing shadow and schlieren imager |
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| CN108036863A (en) * | 2017-12-19 | 2018-05-15 | 中国工程物理研究院激光聚变研究中心 | Wide-range shock velocity diagnostic device and measuring method |
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| CN114993949B (en) * | 2022-05-27 | 2024-03-29 | 中国科学技术大学 | Compact multi-framing shadow and schlieren imager |
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