CN107065213A - A kind of method and device that non-uniform polarisation light beam is produced based on single Amici prism - Google Patents
A kind of method and device that non-uniform polarisation light beam is produced based on single Amici prism Download PDFInfo
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- CN107065213A CN107065213A CN201710199894.5A CN201710199894A CN107065213A CN 107065213 A CN107065213 A CN 107065213A CN 201710199894 A CN201710199894 A CN 201710199894A CN 107065213 A CN107065213 A CN 107065213A
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- light beam
- polarization
- amici prism
- wave plate
- uniform polarisation
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/28—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00 for polarising
- G02B27/286—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00 for polarising for controlling or changing the state of polarisation, e.g. transforming one polarisation state into another
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/28—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00 for polarising
- G02B27/283—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00 for polarising used for beam splitting or combining
- G02B27/285—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00 for polarising used for beam splitting or combining comprising arrays of elements, e.g. microprisms
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- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Optical Elements Other Than Lenses (AREA)
- Polarising Elements (AREA)
Abstract
The invention belongs to field of photoelectric technology, it is related to a kind of method and device that non-uniform polarisation light beam is generated using single Amici prism and phase diagram, it is characterised in that：A beam splitting system is introduced on the output shaft of light source, depolarization Amici prism is separated after making the return light after beam splitting system modulation with incident light, by changing into any non-uniform polarisation light beam after quarter-wave plate.In beam splitting system, introduce phase diagram and substitute traditional computed hologram to eliminate unrelated diffraction time, improve the generation efficiency of non-uniform polarisation light beam.Device proposed by the invention, optical element used is less, and the alignment regulation of light channel structure is simple, can be with the non-uniform polarisation light beam of the generation random polarization distribution of convenience and high-efficiency.
Description
Technical field
The invention belongs to field of photoelectric technology, it is related to one kind using single Amici prism and phase diagram generation non-uniform polarisation
The method and device of light beam.
Background technology
Polarization is a kind of base attribute of light wave.Common even polarization light beam mainly includes linear polarization, circular polarization, ellipse
Light beam.In recent years, as the extension and application of even polarization light beam, non-uniform polarisation light beam is increasingly becoming optics neck
One study hotspot in domain.Special spatial polarization state, which is distributed, makes it have extremely strong longitudinal component in tightly focused, extra small
The features such as spot size, this is in basic science and engineer applied, including Laser Processing, optical micro-manipulation, high density data are deposited
Storage, super-resolution imaging etc., with huge application value.
So far, the generation method of non-uniform polarisation light field both can make it directly defeated by designing the resonator of laser
Go out non-uniform polarisation light beam；It can also be generated outside laser cavity, the generation method outside laser cavity is broadly divided into two major classes, i.e., directly
Method and indirect method.Direct method refers to by designing polarization conversion device, is directly become even polarization light beam using polarization conversion device
For non-uniform polarisation light beam.Common polarization conversion device include twisted nematic liquid crystal, sub-wave length grating, combination half-wave plate,
Super surface etc..Indirect method instigates the two even polarization light beam Coaxial Superimposeds by phase and Polarization Modulation to generate non-uniform polarisation light
Beam, also referred to as interferometric method.
Non-uniform polarisation light beam is produced, it is necessary to the optical element processed by special process, optical element using direct method
The non-uniform polarisation light beam of specific polarization distribution can only be produced after processing sizing, flexibility is reduced.Generated using interferometric method
Non-uniform polarisation light beam, with very high flexibility, can easily produce any non-uniform polarisation light beam.Existing indirect method
Rely primarily on spatial light modulator and realize the real-time controllable of non-uniform polarisation light beam.However, needing loading in spatial light modulator
Computed hologram, anti-(saturating), which penetrates light, can produce multiple diffraction times, seriously reduce the generation efficiency of non-uniform polarisation light beam.Pin
The problem of to indirect method generation efficiency, the present invention proposes a kind of non-uniform polarisation light beam generating method and dress with higher efficiency
Put.
The content of the invention
The technical problem to be solved
In view of the deficiencies of the prior art, the present invention proposes a kind of based on single Amici prism generation non-uniform polarisation light
The method and device of beam, phase diagram used, which can be made phase-plate or substitute computed hologram, is directly displayed at spatial light modulator
On, eliminate the unrelated diffraction time that computed hologram is produced.Optical component used in this method is less, beam combination it is coaxial
Property regulation be easier, with higher generation efficiency.
Technical scheme
The technical solution adopted for the present invention to solve the technical problems, it is characterised in that including light source 1, half-wave plate 2 is depolarized
Shake Amici prism 3, beam splitting system 4, quarter-wave plate 9.
The light source 1 can be He-Ne laser, argon ion laser, semiconductor laser and nanosecond, psec, femtosecond arteries and veins
Rush laser etc..
The effect of the half-wave plate 2 is the polarization direction for changing Laser Output Beam.
The effect of the depolarization Amici prism 3 is that the light beam for returning to beam splitting system 4 is separated with incident beam.
Described beam splitting system 4 includes polarization splitting prism 5, speculum 6, half-wave plate 7 and phase diagram 8：Polarization spectro rib
The effect of mirror 5 is that incident beam is divided into two orthogonal bunch light beams of polarization direction；The effect of speculum 6 is to change polarization
The direction of the reflected beams of Amici prism 5 makes it parallel with the direction of the transmitted light beam of polarization splitting prism 5；The effect of half-wave plate 7 is
Change the polarization direction of light beam；The effect of phase diagram 8 is to load phase information to light beam.
The effect of the quarter-wave plate 9 is that the two bunch polarised lights for making polarization direction orthogonal are converted into two beam rotation direction phases
Anti- circularly polarized light.
Brief description of the drawings
Accompanying drawing 1 is light channel structure schematic diagram of the invention；In figure, 1- light sources, 2- half-wave plates, 3- depolarization Amici prisms,
4- beam splitting systems, 5- polarization splitting prisms, 6- speculums, 7- half-wave plates, 8- phase diagrams, 9- quarter-wave plates.
Accompanying drawing 2 is a kind of deformation schematic diagram of beam splitting system 4 in accompanying drawing 1 of the present invention；In figure, 1- Amici prisms, 2,3- is inclined
Shake piece, 4- phase diagrams.
Accompanying drawing 3 is the phase diagram that phase distribution angularly changes.
Embodiment
With reference to embodiment, the present invention is described further, and following examples are explanation of the invention, is this
A kind of application form of invention, the invention is not limited in following examples.
Embodiment 1：
The present invention proposes to produce the method for non-uniform polarisation light beam as shown in figure 1, the linearly polarized light beam that light source 1 is sent, warp
Half-wave plate 2 is crossed, its polarization direction can arbitrarily change, be divided into two beams polarization into beam splitting system 4, then by polarization splitting prism 5
The orthogonal linearly polarized light beam in direction：P-component and s components.P-component directly reflects through phase diagram 8, and the reflected mirror 6 of s components reflects
Afterwards, polarization direction is become after half-wave plate 7 and the linearly polarized light beam that horizontal direction angle is 45 °, after being reflected through phase diagram 8 again
Once pass through half-wave plate 7, become vertical light beam, now, p-component and s components merge through polarization splitting prism 5 again, pass through
Depolarization Amici prism 3 is reflected, and left-handed and right-hand circular polarization light beam is separately converted to after quarter-wave plate 9, is this hair
The non-uniform polarisation light beam of bright generation.
Embodiment 2：
Beam splitting system 4 light channel structure can also be substituted as shown in Figure 2, and light beam enters depolarization Amici prism 1, by light splitting rib
Mirror is divided into transmitted light beam and the reflected beams, and transmitted light beam and the reflected beams are parallel to each other, and transmitted light beam becomes polarization through polarizer 2
Direction becomes polarization direction and level side with the linearly polarized light beam that horizontal direction angle is 135 °, the reflected beams by polarizer 3
To the linearly polarized light beam that angle is 45 °, two light beams merge through depolarization Amici prism 1 again after being reflected through phase diagram 4.
Embodiment 3：
Fig. 3 show the phase diagram that phase distribution angularly changes, and incident beam passes through the polarization spectro in beam splitting system 4
It is divided into two orthogonal beam directional lights of polarization direction after prism 5 and speculum 6, corresponding phase letter is carried after being reflected through phase diagram
Breath.Finally, the superposition light beam after depolarization Amici prism 3 reflects after quarter-wave plate 9 by being converted to local polarization side
To the non-uniform polarisation light beam angularly changed, its polarisation distribution can be write as Jones matrix：[cosδ,sinδ]T, local line is inclined
The polarization direction shaken depends on the phase distribution δ of phase diagram.The Jones matrix being used above can also represent arbitrary non-homogeneous
Light beam.The local polarization direction that phase diagram that such as phase distribution radially changes is produced is along the non-homogeneous of radial variations
Light beam；Phase distribution is radially and angular while the local polarization direction of the phase diagram generation of change is along radially and angularly
The non-uniform polarisation light beam changed simultaneously.
Claims (4)
1. a kind of method and device that non-uniform polarisation light beam is produced based on single Amici prism, it is characterised in that light source (1) is sent out
The linearly polarized light beam gone out, by half-wave plate (2), its polarization direction can arbitrarily change, after depolarization Amici prism (3),
It is divided into the orthogonal linearly polarized light beam in two beam polarization directions into beam splitting system (4), then by polarization splitting prism：P-component and s divide
Amount.P-component is directly reflected through phase diagram (8), and after the reflected mirror of s components (6) reflection, polarization side is become after half-wave plate (7)
To with the linearly polarized light beam that horizontal direction angle is 45 °, through phase diagram (8) reflect after again through half-wave plate (7), become perpendicular
Straight light beam, now, p-component and s components merge through polarization splitting prism (5) again, again pass by depolarization Amici prism (3)
Reflection, by being separately converted to left-handed and right-hand circular polarization light beam after quarter-wave plate (9).Finally, non-uniform polarisation is generated
Light beam.
2. device according to claim 1, it is characterised in that：The beam splitting system (4) can also light path knot as shown in Figure 2
Structure is substituted, and light beam enters depolarization Amici prism (1), is divided into transmitted light beam and the reflected beams by Amici prism, transmitted light beam and
The reflected beams are parallel, the linearly polarized light beam that transmitted light beam becomes polarization direction through polarizer (2) and horizontal direction angle is 135 °,
The reflected beams are by the linearly polarized light beam that polarizer (3) becomes polarization direction with horizontal direction angle is 45 °, and two light beams are through phase
Scheme again through depolarization Amici prism (1) to merge after (4) reflection.
3. device according to claim 1, it is characterised in that：Phase-plate can be made or directly aobvious in the phase diagram (8)
Show in spatial light modulator.
4. device according to claim 1, it is characterised in that：Light source (1) used can be He-Ne laser, and argon ion swashs
Light device, semiconductor laser and nanosecond, psec, femtosecond pulse laser etc..
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710199894.5A CN107065213A (en) | 2017-03-30 | 2017-03-30 | A kind of method and device that non-uniform polarisation light beam is produced based on single Amici prism |
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| CN201710199894.5A CN107065213A (en) | 2017-03-30 | 2017-03-30 | A kind of method and device that non-uniform polarisation light beam is produced based on single Amici prism |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108061975A (en) * | 2017-12-07 | 2018-05-22 | 西北工业大学 | A kind of method and device for efficiently generating arbitrary vectorial field |
| CN108319773A (en) * | 2018-01-29 | 2018-07-24 | 哈尔滨工业大学 | Quantum door detecting system based on quantum chromatography |
| CN114755836A (en) * | 2022-06-14 | 2022-07-15 | 苏州大学 | Method and device for generating angular polarized light beam and processing turbulence resistance of light beam |
| CN114905146A (en) * | 2022-06-01 | 2022-08-16 | 中红外激光研究院(江苏)有限公司 | Intermediate infrared laser beam shaping device and method for machining special-shaped piece |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102289080A (en) * | 2011-08-10 | 2011-12-21 | 浙江大学 | Method and device for generating radial polarization beam |
| CN102928990A (en) * | 2012-11-21 | 2013-02-13 | 中国科学院上海光学精密机械研究所 | Device capable of changing two-dimensional distribution of polarization direction of light beam |
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2017
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102289080A (en) * | 2011-08-10 | 2011-12-21 | 浙江大学 | Method and device for generating radial polarization beam |
| CN102928990A (en) * | 2012-11-21 | 2013-02-13 | 中国科学院上海光学精密机械研究所 | Device capable of changing two-dimensional distribution of polarization direction of light beam |
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| CHRISTIAN MAURER: "Tailoring of arbitrary optical vector beams", 《NEW JOURNAL OF PHYSICS》 * |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108061975A (en) * | 2017-12-07 | 2018-05-22 | 西北工业大学 | A kind of method and device for efficiently generating arbitrary vectorial field |
| CN108061975B (en) * | 2017-12-07 | 2023-05-23 | 西北工业大学 | Method and device for efficiently generating arbitrary vector light field |
| CN108319773A (en) * | 2018-01-29 | 2018-07-24 | 哈尔滨工业大学 | Quantum door detecting system based on quantum chromatography |
| CN108319773B (en) * | 2018-01-29 | 2021-04-20 | 哈尔滨工业大学 | Quantum gate detection system based on quantum chromatography |
| CN114905146A (en) * | 2022-06-01 | 2022-08-16 | 中红外激光研究院(江苏)有限公司 | Intermediate infrared laser beam shaping device and method for machining special-shaped piece |
| CN114905146B (en) * | 2022-06-01 | 2023-04-25 | 中红外激光研究院(江苏)有限公司 | Middle infrared laser beam shaping device and method for processing special-shaped piece |
| CN114755836A (en) * | 2022-06-14 | 2022-07-15 | 苏州大学 | Method and device for generating angular polarized light beam and processing turbulence resistance of light beam |
| CN114755836B (en) * | 2022-06-14 | 2022-09-23 | 苏州大学 | Method and device for generating angular polarized light beam and anti-turbulence processing of light beam |
| WO2023240740A1 (en) * | 2022-06-14 | 2023-12-21 | 苏州大学 | Azimuthally polarized light beam generation method and device, and anti-turbulence processing method and device for said light beam |
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Application publication date: 20170818 |