CN209387141U - A kind of fluorescence double velocity correlation system safety testing device - Google Patents
A kind of fluorescence double velocity correlation system safety testing device Download PDFInfo
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- CN209387141U CN209387141U CN201920380668.1U CN201920380668U CN209387141U CN 209387141 U CN209387141 U CN 209387141U CN 201920380668 U CN201920380668 U CN 201920380668U CN 209387141 U CN209387141 U CN 209387141U
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- 238000009781 safety test method Methods 0.000 title claims abstract description 23
- 230000003287 optical effect Effects 0.000 claims abstract description 30
- 238000009434 installation Methods 0.000 claims description 4
- 230000008450 motivation Effects 0.000 claims 1
- 238000012360 testing method Methods 0.000 abstract description 9
- 238000005259 measurement Methods 0.000 abstract description 6
- 238000002474 experimental method Methods 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 5
- 238000006243 chemical reaction Methods 0.000 description 4
- 230000000875 corresponding effect Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 230000007613 environmental effect Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000002596 correlated effect Effects 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 239000002096 quantum dot Substances 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
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- Investigating, Analyzing Materials By Fluorescence Or Luminescence (AREA)
Abstract
The utility model discloses a kind of fluorescence double velocity correlation system safety testing devices, including optical flat, shading pipe is installed on optical flat, one end of shading pipe is for receiving light beam, first shading platform of other end connection inner hollow, first shading platform is arranged at intervals with the second shading platform of inner hollow far from the side of shading pipe, driving mechanism is additionally provided on optical flat, light splitting grillage is installed in driving mechanism, dismountable beam splitter is installed in light splitting grillage, beam splitter is for light beam to be divided into two bundles, and light splitting grillage can extend into the interval region of the first shading platform and the second shading platform, photodetector is provided on first shading platform and the second shading platform, photodetector is connected to Single Photon Counting device.By the above-mentioned means, the utility model can be realized all band test of light beam, test scope is wide and measurement accuracy is high, and convenient the rapid deployment device, reliability under different experiment scenes are higher.
Description
Technical field
The utility model relates to the double velocity correlation testing fields of fluorescence, test more particularly to a kind of fluorescence double velocity correlation
Device.
Background technique
Single-photon source is the antibunch source that can steadily issue single photon, i.e., its photon stream issued is certain
It only include a photon in time interval, with the development of single photon technique, efficient stable, the list with height indistinguishability
Photon source will be applied and develop in the fields such as quantum information and quantum calculation.
Currently, the double velocity correlation of micro-nanos light emitting source such as existing some quantum dot single-photon sources and the device of fluorescence lifetime exist
When measuring, the wave-length coverage of measurement is not big enough and measurement accuracy is not high enough, is unfavorable under different experiments environmental condition
Using.
Utility model content
The utility model is mainly solving the technical problems that provide a kind of fluorescence double velocity correlation system safety testing device.
In order to solve the above technical problems, the technical solution that the utility model uses is: providing a kind of fluorescence second order pass
Join system safety testing device, including optical flat, shading pipe is installed, one end of the shading pipe is for receiving on the optical flat
Fluorescence source, the other end connect the first shading platform of inner hollow, and the first shading platform is arranged far from the side interval of shading pipe
There is the second shading platform of inner hollow, is additionally provided with driving mechanism on the optical flat, straight line where the driving mechanism and the
Straight line where one shading platform is equipped with light splitting grillage in the driving mechanism, being equipped in the light splitting grillage can at 45 degree of angles
The beam splitter of disassembly, the beam splitter are used to optical path being divided into two-way, and be divided grillage can extend into the first shading platform and
In the interval region of second shading platform, it is provided with the first photodetector on the first shading platform, on the second shading platform
It is provided with the second photodetector, first photodetector and the second photodetector are all connected to time correlation single photon
Counter.
Preferably, sliding is provided with sliding block in the driving mechanism, and adjustment frame, the adjustment frame are provided on the sliding block
On the light splitting grillage is detachably installed, a long side of the light splitting grillage is vertical with the upper surface of the sliding block.
Preferably, the light splitting grillage offers the first installation being adapted to the beam splitter shape size along its length
Hole, and the inner wall of first mounting hole is provided with step-like support portion, the beam splitter can be caught in first installation
It is supported in hole and by the support portion.
Preferably, be provided with baffle on the light splitting grillage, the baffle be adapted with the shape size of light splitting grillage and
Offer the second mounting hole corresponding with first through hole position.
Preferably, the other end of the shading pipe is threaded with the first mounting base, and the first mounting base and first
Shading platform is threadedly coupled close to the side of shading pipe, and the bottom of first mounting base is flat by base type extension bar and the optics
Plate is fixedly connected, and the lower part of the base type extension bar is equipped with V shape briquetting.
Preferably, it is logical that first through hole, the second through-hole and third are offered on three sides of the first shading platform respectively
Hole offers fourth hole and fifth hole, and first through hole, third through-hole on two sides of the second shading platform respectively
On the same line with the center of fourth hole.
Preferably, flank threads where second through-hole are connected with the second mounting base, side where the fourth hole
It is threaded with third mounting base, second mounting base is connected with the 4th mounting base, the 4th peace by first connecting rod
First photodetector is threadedly coupled on dress seat, the third mounting base is connected with the 5th installation by the second connecting rod
, second photodetector is threadedly coupled in the 5th mounting base.
Preferably, which is characterized in that be provided between second mounting base and the 4th mounting base for selecting certain wave
First prism of long light is provided with of the light for selecting specific wavelength between the third mounting base and the 5th mounting base
Two prisms.
Preferably, the side of first prism is provided with the first automatically controlled roll-over table, and the first automatically controlled roll-over table passes through
Third connecting rod is connected with the first prism mounting base, installs first prism in the first prism mounting base, and described second
The side of prism is provided with the second automatically controlled roll-over table, and the second automatically controlled roll-over table is connected with the second prism by the 4th connecting rod
Mounting base installs second prism in the second prism mounting base.
It is in contrast to the prior art, the beneficial effects of the utility model are: the utility model passes through automatically controlled roll-over table
Control mode cut reflection-type object lens to optical path, to keep the switching of optical path more convenient；By driving structure into
The switching of row beam splitter, can be more convenient and accurately switches corresponding beam splitter according to the wavelength of incident light, to also make
The range of test is wider, and precision is higher, is conducive to the popularization and application under different experiments environmental condition.
Detailed description of the invention
Fig. 1 is the top view of the utility model fluorescence double velocity correlation system safety testing device；
Fig. 2 is structural schematic diagram behind the utility model fluorescence double velocity correlation system safety testing device；
Fig. 3 is the structural schematic diagram of the driving mechanism of the utility model fluorescence double velocity correlation system safety testing device；
Fig. 4 is the light splitting grillage of the utility model fluorescence double velocity correlation system safety testing device and the structural schematic diagram of baffle；
Fig. 5 is the structural schematic diagram of the first shading platform of the utility model fluorescence double velocity correlation system safety testing device；
Fig. 6 is the structural schematic diagram of the second shading platform of the utility model fluorescence double velocity correlation system safety testing device；
Fig. 7 is the positive structure schematic of the utility model fluorescence double velocity correlation system safety testing device；
Fig. 8 is the principle frame of the Single Photon Counting device of the utility model fluorescence double velocity correlation system safety testing device
Figure.
In attached drawing: 1- optical flat, 2- shading pipe, the first shading of 3- platform, 301- first through hole, the second through-hole of 302-,
303- third through-hole, the second shading of 4- platform, 401- fourth hole, 402- fifth hole, 5- driving mechanism, 501- light splitting grillage,
The first mounting hole of 5011-, 5012- support portion, 502- beam splitter, 503- sliding block, 504- adjustment frame, 505- baffle, 5051- second
Mounting hole, the first photodetector of 6-, the second photodetector of 7-, the first mounting base of 8-, 9- base type extension bar, 10- V shape pressure
Block, the second mounting base of 11-, 12- third mounting base, 13- first connecting rod, the 4th mounting base of 14-, the second connecting rod of 15-, 16-
5th mounting base, the first prism of 17-, the second prism of 18-, the automatically controlled roll-over table of 19- first, 20- third connecting rod, the first rib of 21-
Mirror mounting base, the automatically controlled roll-over table of 22- second, the 4th connecting rod of 23-, 24- the second prism mounting base.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describing, it is clear that described embodiment is only a part of the embodiment of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
Every other embodiment obtained, fall within the protection scope of the utility model.
As shown in Figure 1, Figure 2, Figure 3 shows, the utility model includes: optical flat 1, in order to clear up vibrational energy, amplitude and hold
Torsional deformation between the ability and resistance stress deformation, reduction optical module of continuous time, optical flat 1 is honeycomb core optical surface
Wrapper sheet is equipped with shading pipe 2 on optical flat 1, and one end of shading pipe 2 is for receiving light beam, further, inside shading pipe 2
The other end of the settable collimating mirror for beam collimation, shading pipe 2 connects the first shading platform 3, and the first shading platform 3 is far from shading
The side of pipe 2 is arranged at intervals with the second shading platform 4, is additionally provided with driving mechanism 5 on optical flat, 5 place straight line of driving mechanism with
First shading platform, 3 place straight line is equipped with light splitting grillage 501, is divided in grillage 501 and is equipped at 45 degree of angles in driving mechanism 5
Dismountable beam splitter 502, beam splitter 502 are divided grillage 501 and can extend into the first shading platform for light beam to be divided into two bundles
3 and second shading platform 4 interval region in, for the ease of the light splitting grillage 501 in driving mechanism 5 in the first shading platform 3 and
It is moved in interval region between two shading platforms 4 and better shaded effect, the thickness of light splitting grillage 501 should be with spacer region
Domain is adapted, and the first photodetector 6 is provided on the first shading platform, the second photodetector 7 is provided on the second shading platform,
First photodetector 6 and the second photodetector 7 are all connected to Single Photon Counting device, in the present embodiment, the
One photodetector and the second photodetector are the photomultiplier tubes of model PMT-R9880U.
As shown in Figure 3, Figure 4, sliding is provided with sliding block 503 in driving mechanism 5, and adjustment frame 504 is provided on sliding block 503,
The light splitting grillage 501 is detachably installed on the adjustment frame 504, a long side of the light splitting grillage 501 with it is described
The upper surface of sliding block 503 is vertical.Further, light splitting grillage 501 offers and 502 shape size of beam splitter along its length
First mounting hole 5011 of adaptation, and the inner wall of the first mounting hole 5011 is provided with step-like support portion 5012, the beam splitting
Device 502 can be caught in the first mounting hole 5011 and supported portion 5012 supports, and is divided on grillage and is additionally provided with baffle 505, keeps off
Plate 505 is adapted with the shape size of light splitting grillage 501 and offers the second peace corresponding with 5011 position of the first mounting hole
Hole 5051 being filled, and the first mounting hole 5011 is three, for equidistant arrangement on light splitting grillage 501, the second mounting hole 5051 is three,
On baffle 505, baffle 505 and light splitting grillage 501 are bolted equidistant arrangement, to play preferably fixed effect to beam splitter 502
Fruit is fixed on light splitting grillage, and in the present embodiment, driving mechanism 5 is sliding rail, and is fixedly installed on optical flat 1,
In other examples, it is also possible to motorized rails, the sliding of sliding block is controlled by automatically controlled mode, beam splitter 502 uses
50:50 is divided the medium membrane type beam splitter of ratio, and the wave-length coverage of three pieces beam splitter 502 is respectively 250-450nm, 400-
700nm and 600-1700nm, so as to realize the test in entire wave-length coverage, and can by mobile sliding block 503
The beam splitter 502 of wave-length coverage required for being more easily switched to.
As shown in figure 4, specifically, described one end of shading pipe 2 is provided with the first mounting base 8, opened up in the first mounting base 8
There is the screw hole being adapted to 2 one end of shading pipe, shading pipe 2 is threadedly coupled with the screw hole of the first mounting base 8, and the first mounting base 8
Quadrangle is equipped with location hole, and the first mounting base 8 is connect close to the side of shading pipe 2 by location hole with the first shading platform 3, and first
The bottom of mounting base 8 is fixedly connected by base type extension bar 9 with optical flat 1, and the lower part of base type extension bar 9 is equipped with V shape
Briquetting 10 can play the role of the optical module on optical flat 1 preferably to support and fix.
As shown in Figure 5, Figure 6, first through hole 301, the second through-hole are offered respectively on three sides of the first shading platform 3
302 and third through-hole 303, fourth hole 401 and fifth hole 402 are offered respectively on two sides of the second shading platform 4, and
The center of first through hole 301, third through-hole 303 and fourth hole 401 on the same line so that beam splitter 504 is in third
Between through-hole 303 and fourth hole 401, and light beam can be penetrated after first through hole 301 and third through-hole 303 in beam splitter
After on 502, the two light beams being divided into are a branch of to pass through the second through-hole 302, and another beam passes through fourth hole 401 and fifth hole 402.
As shown in Fig. 1, Fig. 4, Fig. 7, further, the 302 place flank threads of the second through-hole on the first shading platform 3 connect
It is connected to the second mounting base 11, the second mounting base 11 is mounted on optical flat 1 by base type extension bar 9 and V shape briquetting 10, right
It plays the role of preferably supporting and fixing, and the 402 place flank threads of fifth hole on the second shading platform 4 are connected with third peace
Seat 12 is filled, third mounting base 12 is mounted on optical flat 1 by base type extension bar 9 and V shape briquetting 10, is played to it more preferably
Support and fix effect, the second mounting base 11 is connected with the 4th mounting base 14, third mounting base 12 by first connecting rod 13
It is connected with the 5th mounting base 16 by the second connecting rod 15, is provided between the second mounting base 11 and the 4th mounting base 14 for cutting
The first prism 17 for changing optical path, is provided with the second prism for switching-over light path between third mounting base and 13 the 5th mounting bases 16
18, the side of the first prism 17 is provided with the first automatically controlled roll-over table 19, and the first automatically controlled roll-over table 19 is connected by third connecting rod 20
It is connected to the first prism mounting base 21, the first prism 17 is installed in first prism mounting base 21, the side of the second prism 18 is provided with
Second automatically controlled roll-over table 22, the second automatically controlled roll-over table 22 are connected with the second prism mounting base 24 by the 4th connecting rod 23, and second
Second prism 18 is installed in prism mounting base 24, automatically controlled roll-over table can by automatically controlled mode by prism mounting base clockwise or
It is rotated by 90 ° counterclockwise, to realize the switching of optical path.
When testing, shading treatment is carried out to whole device first, specifically, one can be arranged in the top of device
A cover, whole device is shrouded in cover, and the light beam that then light source to be measured issues enters shading pipe 2, by shading pipe 2
Collimating mirror collimated after, by the beam collimation of diverging at collimated light beam, then collimated light beam sequentially passes through the first shading platform 3
First through hole 301 and third through-hole 303, then beat on the beam splitter 502 on light splitting grillage 501, and then light beam be divided into
Two-way, two-way light beam are respectively the reflected beams and transmitted light beam, and the reflected beams are after the second through-hole 302 by the first prism 17
It is converted into being used as in triggering entry time correlated single photon counter after electric signal by the first photodetector 6 afterwards, transmitted light beam
Electric signal is converted by the second photodetector 7 after the second prism 18 after fourth hole 401 and fifth hole 402,
It finally enters in Single Photon Counting device, when needing replacing the operating wavelength range of beam splitter 502, makes driving mechanism
Sliding block 501 on 5 slides, to make the light splitting grillage 501 being set on sliding block 501 to the first shading platform 3 and the second shading platform 4
Interval region in move, and beam splitter 502 required for making is between third through-hole 303 and fourth hole 401, thus
Realize the test in different wavelength range.
As shown in figure 8, Single Photon Counting device include pre-amplifying module, time delay module and when m- amplitude turn
Block is changed the mold, the electric signal that Single Photon Counting device exports the first photodetector is as Start signal, by the second light
The electric signal of electric explorer output is as STOP signal, before pre-amplifying module respectively carries out Start signal and STOP signal
The time pickup disturbance for reducing signal greatly is put, enters constant fraction discriminator module by preposition amplified Start signal, realizes
Analog signal enters perseverance by preposition amplified Stop signal to the conversion of Digital Time-stamp signal after time delay module is delayed
Realize conversion of the analog signal to Digital Time-stamp signal than timing module, m- amplitude conversion module when finally entering, when it is m-
Amplitude conversion module realizes that start-stop time interval measurement and time channel count, and measurement result is output to multiple tracks point
Analyzer completes measurement.
By the above-mentioned means, the utility model carries out reflection-type object lens to light
Collimation, to keep the switching of optical path more convenient；The switching of device is split by automatically controlled guide rail, it being capable of conveniently and accurately root
Switch corresponding beam splitter according to lambda1-wavelength, to also make the range of test wider, precision is higher, is conducive in varying environment item
Popularization and application under part
The above description is only the embodiments of the present invention, and therefore it does not limit the scope of the patent of the utility model, all
Equivalent structure or equivalent flow shift made based on the specification and figures of the utility model, is applied directly or indirectly in
Other related technical areas are also included in the patent protection scope of the utility model.
Claims (10)
1. a kind of fluorescence double velocity correlation system safety testing device, comprising: optical flat, which is characterized in that installed on the optical flat
There is a shading pipe, for receiving fluorescence source, the other end connects the first shading platform of inner hollow for one end of the shading pipe, and described the
One shading platform is arranged at intervals with the second shading platform of inner hollow far from the side of shading pipe, is additionally provided with drive on the optical flat
Motivation structure, straight line where the driving mechanism and the first shading platform place straight line are equipped at 45 degree of angles in the driving mechanism
It is divided grillage, dismountable beam splitter is installed, the beam splitter is used to for optical path being divided into two-way, and divides in the light splitting grillage
Tabula rasa frame can extend into the interval region of the first shading platform and the second shading platform, and is provided on the first shading platform
One photodetector is provided with the second photodetector, first photodetector and the second light on the second shading platform
Electric explorer is all connected to Single Photon Counting device.
2. fluorescence double velocity correlation system safety testing device according to claim 1, which is characterized in that slided in the driving mechanism
It is provided with sliding block, adjustment frame is provided on the sliding block, the light splitting grillage is detachably installed on the adjustment frame, described point
One long side of tabula rasa frame is vertical with the upper surface of the sliding block.
3. fluorescence double velocity correlation system safety testing device according to claim 2, which is characterized in that the light splitting grillage is along length
Direction offers the first mounting hole being adapted to the beam splitter shape size, and the inner wall of first mounting hole is provided with platform
The support portion of scalariform, the beam splitter can be caught in first mounting hole and be supported by the support portion.
4. fluorescence double velocity correlation system safety testing device according to claim 3, which is characterized in that be arranged on the light splitting grillage
There is baffle, the baffle is adapted with the shape size of light splitting grillage and offers the second peace corresponding with first through hole position
Fill hole.
5. fluorescence double velocity correlation system safety testing device according to claim 4, which is characterized in that first mounting hole and
Two mounting holes are three, and the beam splitter is three pieces, and the operating wavelength range of every beam splitter is different.
6. fluorescence double velocity correlation system safety testing device according to claim 1, which is characterized in that the shading pipe it is described another
Threaded one end is connected with the first mounting base, and the first mounting base is threadedly coupled with the first shading platform close to the side of shading pipe, institute
The bottom for stating the first mounting base is fixedly connected by base type extension bar with the optical flat, and the lower part of the base type extension bar
V shape briquetting is installed.
7. fluorescence double velocity correlation system safety testing device according to claim 1, which is characterized in that the three of the first shading platform
First through hole, the second through-hole and third through-hole are offered on a side respectively, is distinguished on two sides of the second shading platform
Fourth hole and fifth hole are offered, and the center of first through hole, third through-hole and fourth hole is on the same line.
8. fluorescence double velocity correlation system safety testing device according to claim 7, which is characterized in that side where second through-hole
Face is threaded with the second mounting base, and flank threads where the fourth hole are connected with third mounting base, second installation
Seat is connected with the 4th mounting base by first connecting rod, is threadedly coupled first photodetector in the 4th mounting base,
The third mounting base is connected with the 5th mounting base by the second connecting rod, is threadedly coupled described second in the 5th mounting base
Photodetector.
9. fluorescence double velocity correlation system safety testing device according to claim 8, which is characterized in that second mounting base and the
Be provided with the first prism of the light for selecting specific wavelength between four mounting bases, the third mounting base and the 5th mounting base it
Between be provided with the second prism of light for selecting specific wavelength.
10. fluorescence double velocity correlation system safety testing device according to claim 9, which is characterized in that the one of first prism
Side is provided with the first automatically controlled roll-over table, and the first automatically controlled roll-over table is connected with the first prism mounting base by third connecting rod,
First prism is installed in the first prism mounting base, the side of second prism is provided with the second automatically controlled roll-over table,
The second automatically controlled roll-over table is connected with the second prism mounting base by the 4th connecting rod, installs in the second prism mounting base
Second prism.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920380668.1U CN209387141U (en) | 2019-03-25 | 2019-03-25 | A kind of fluorescence double velocity correlation system safety testing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920380668.1U CN209387141U (en) | 2019-03-25 | 2019-03-25 | A kind of fluorescence double velocity correlation system safety testing device |
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| Publication Number | Publication Date |
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| CN209387141U true CN209387141U (en) | 2019-09-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201920380668.1U Expired - Fee Related CN209387141U (en) | 2019-03-25 | 2019-03-25 | A kind of fluorescence double velocity correlation system safety testing device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111089648A (en) * | 2020-01-13 | 2020-05-01 | 中国科学院半导体研究所 | Optical filtering and second-order correlation degree testing device of optical fiber coupling single photon source |
-
2019
- 2019-03-25 CN CN201920380668.1U patent/CN209387141U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111089648A (en) * | 2020-01-13 | 2020-05-01 | 中国科学院半导体研究所 | Optical filtering and second-order correlation degree testing device of optical fiber coupling single photon source |
| CN111089648B (en) * | 2020-01-13 | 2020-11-13 | 中国科学院半导体研究所 | Optical filtering and second-order correlation degree testing device of optical fiber coupling single photon source |
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