CN101788782A - Double coaxial transient laser holographic recording system - Google Patents
Double coaxial transient laser holographic recording system Download PDFInfo
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- CN101788782A CN101788782A CN201010300049A CN201010300049A CN101788782A CN 101788782 A CN101788782 A CN 101788782A CN 201010300049 A CN201010300049 A CN 201010300049A CN 201010300049 A CN201010300049 A CN 201010300049A CN 101788782 A CN101788782 A CN 101788782A
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- 230000001052 transient effect Effects 0.000 title claims abstract description 23
- 239000002245 particle Substances 0.000 claims description 11
- 230000003287 optical effect Effects 0.000 claims description 10
- 230000008878 coupling Effects 0.000 claims description 6
- 238000010168 coupling process Methods 0.000 claims description 6
- 238000005859 coupling reaction Methods 0.000 claims description 6
- 238000012360 testing method Methods 0.000 claims description 3
- 239000004744 fabric Substances 0.000 description 5
- 238000000034 method Methods 0.000 description 3
- 238000003384 imaging method Methods 0.000 description 2
- 238000004891 communication Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000010979 ruby Substances 0.000 description 1
- 229910001750 ruby Inorganic materials 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
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Abstract
The invention discloses a double coaxial transient holographic recording system capable of acquiring two holograms in any time interval. In the recording system, two pulse lasers which output different wavelengths are taken as light sources for holographic recording and the holographic recording is performed by utilizing a holographic plate which corresponds to the wavelengths output by the laser, so that the two holograms with the same direction and in any time interval are acquired, and more physical information can be acquired.
Description
Technical field
The invention belongs to the laser hologram field, be specifically related to a kind of double coaxial transient laser holographic recording system of interior at interval acquisition two width of cloth images at any time.
Background technology
Laser hologram has obtained application more and more widely at aspects such as physics, chemistry, biology, medical science, communication and big science engineerings.For different applications and research object, method that holographic technique is used and the information of obtaining are not quite similar.Coaxial transient state holographic technique can be used to measure the motion Particle Field, for example the jet Particle Field that produces of shock wave etc.Use suitable laser energy and pulsewidth, can obtain the multiple physical message that the motion Particle Field is carved at a time, comprise space distribution, Size Distribution of particle etc.
The register system of general coaxial transient state laser hologram is grabbed pulsed laser and recording medium by light-pulse generator and is grabbed holographic dry plate and form.Be characterized in writing down the three-dimensional information of motion Particle Field, the resolution height, but can only write down a width of cloth hologram image.
Summary of the invention
The invention provides a kind of double coaxial transient laser holographic recording system.
Coaxial transient state laser hologram in the prior art can only obtain the hologram image of single width, in order in coaxial transient state laser hologram system, to obtain the hologram image of double width, the invention provides a kind of double coaxial transient laser holographic recording system, can obtain two width of cloth hologram images within the same area, same direction, arbitrary time span.
Double coaxial transient laser holographic recording system of the present invention, be characterized in that the pulsed laser II that the pulsed laser I that it is A that described register system adopts an output wavelength and output wavelength are B is as the lighting source of coaxial transient state laser holographic recording system; Adopt laser coupled that coupling mirror sends above-mentioned pulsed laser I and pulsed laser II on same direction, by the motion Particle Field; Adopt 4F to pass the hologram image of recorded information is delivered to place away from test zone as system; The holographic dry plate I that employing does not respond the B wavelength the A wavelength response writes down the hologram that is loaded by the A wavelength laser, and holographic dry plate I is placed on the A wavelength image space; Employing is to the energy attenuation of A wavelength laser, place holographic dry plate I back to the unattenuated optical filter of B wavelength laser energy, and holographic dry plate II places the optical filter back, with the isolated laser that arrives the A wavelength of holographic dry plate II; The holographic dry plate II that employing does not respond the A wavelength substantially to the B wavelength response obtains the hologram image that the B wavelength loads, and places on the image space of B wavelength.
Described laser instrument I adopts the pulsed laser of output wavelength between 500nm～600nm.
Described laser instrument II adopts the pulsed laser of output wavelength between 600nm～700nm.
The wavelength response range of described holographic dry plate I is 500nm～600nm, places on the image space of A wavelength.
The wavelength response range of described holographic dry plate II is 600nm～700nm, places on the image space of B wavelength.
Described optical filter is all-trans to the light of 500nm～600nm, to the light full impregnated of 600nm～700nm.
The present invention has more obtained two width of cloth hologram images in same direction, the same area, the arbitrary time span, thereby has obtained more physical message in the high resolving power that has kept coaxial transient state laser hologram, acquisition motion Particle Field three-dimensional information advantage.
Description of drawings
Fig. 1 is the structural representation of double coaxial transient holographic recording system of the present invention.
Among Fig. 1,1. laser instrument I 2. laser instrument II 3. total reflective mirrors 4. coupling mirror 5.4F pass as 6. holographic dry plate I, the 7. holographic dry plate II of system, 8. optical filters, 9. motion Particle Field
Embodiment
The present invention is further described below in conjunction with drawings and Examples.
In Fig. 1, double coaxial transient laser holographic recording system of the present invention, the pulsed laser II2 that the pulsed laser I1 that to adopt an output wavelength be A and output wavelength are B is as the lighting source of coaxial transient state laser holographic recording system; Adopt laser coupled that coupling mirror 4 sends pulsed laser I1 and pulsed laser II2 on same direction, by motion Particle Field 9; Adopt 4F to pass the hologram image of recorded information is delivered to place away from test zone as system 5; The holographic dry plate I6 that employing does not respond the B wavelength the A wavelength response writes down the hologram that is loaded by the A wavelength laser, and holographic dry plate I6 is placed on the A wavelength image space; Employing is to the energy attenuation of A wavelength laser, place holographic dry plate I1 back to the unattenuated optical filter 8 of B wavelength laser energy, and holographic dry plate II2 places optical filter 8 back, with the isolated laser that arrives the A wavelength of holographic dry plate II7; The holographic dry plate II7 that employing does not respond the A wavelength substantially to the B wavelength response obtains the hologram image that the B wavelength loads, and places on the image space of B wavelength.
Output wavelength in the system of the present invention is that the laser instrument II2 of B is the ruby laser of output wavelength 694.3nm, arrive the coupling mirror 4 that the 694.3nm wavelength laser is all-trans through the total reflective mirror 3 that the 694.3nm wavelength laser is all-trans, output wavelength is that the laser instrument I1 of A is that output wavelength is the YAG pulsed laser of 532nm, by to the coupling mirror 4 of 532nm wavelength laser full impregnated and 694.3nm laser coupled in same direction.The two bundle laser that are coupled, different hologram images that impact the motion Particle Field 9 that produces constantly of record respectively, 4F pass will the different moment of above-mentioned two width of cloth as system 5 hologram images be delivered to place away from zone to be measured undistortedly.In 532nm laser imaging position is on the image space of A wavelength, by the holographic dry plate I6 record of response wave length 532nm; In 694.3nm laser imaging position is on the image space of B wavelength, by the holographic dry plate II7 record of response wave length 694.3nm, places optical filter 8 between holographic dry plate I6 and holographic dry plate II7, arrives the laser of the 532nm wavelength of holographic dry plate II7 with filtering.
Among the present invention, adopt the Φ 30mm of the designed processing of Changchun ray machine, 1: 2 4F passes as system.
Claims (6)
1. double coaxial transient laser holographic recording system is characterized in that: the pulsed laser II that the pulsed laser I that it is A that described register system adopts an output wavelength and output wavelength are B is as the lighting source of coaxial transient state laser holographic recording system; Adopt laser coupled that coupling mirror sends pulsed laser I and pulsed laser II on same direction, by the motion Particle Field; Adopt 4F to pass the hologram image of recorded information is delivered to place away from test zone as system; The holographic dry plate I that employing does not respond the B wavelength the A wavelength response writes down the hologram that is loaded by the A wavelength laser, and holographic dry plate I is placed on the A wavelength image space; Employing is to the energy attenuation of A wavelength laser, place holographic dry plate I back to the unattenuated optical filter of B wavelength laser energy, and holographic dry plate II places the optical filter back, with the isolated laser that arrives the A wavelength of holographic dry plate II; The holographic dry plate II that employing does not respond the A wavelength substantially to the B wavelength response obtains the hologram image that the B wavelength loads, and places on the image space of B wavelength.
2. double coaxial transient holographic recording system according to claim 1 is characterized in that: described laser instrument I adopts the pulsed laser of output wavelength between 500nm～600nm.
3. double coaxial transient holographic recording system according to claim 1 is characterized in that: described laser instrument II adopts the pulsed laser of output wavelength between 600nm～700nm.
4. double coaxial transient holographic recording system according to claim 1 is characterized in that: the wavelength response range of described holographic dry plate I is 500nm～600nm, places on the image space of A wavelength.
5. double coaxial transient holographic recording system according to claim 1 is characterized in that: the wavelength response range of described holographic dry plate II is 600nm～700nm, places on the image space of B wavelength.
6. double coaxial transient holographic recording system according to claim 1 is characterized in that: described optical filter is all-trans to the light of 500nm～600nm, to the light full impregnated of 600nm～700nm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010103000490A CN101788782B (en) | 2010-01-06 | 2010-01-06 | Double coaxial transient laser holographic recording system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010103000490A CN101788782B (en) | 2010-01-06 | 2010-01-06 | Double coaxial transient laser holographic recording system |
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| CN101788782A true CN101788782A (en) | 2010-07-28 |
| CN101788782B CN101788782B (en) | 2011-06-29 |
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| CN2010103000490A Expired - Fee Related CN101788782B (en) | 2010-01-06 | 2010-01-06 | Double coaxial transient laser holographic recording system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102096091A (en) * | 2011-01-06 | 2011-06-15 | 西北核技术研究所 | Particle field optical holographic high-precision reproduction collecting system and method |
| CN106950811A (en) * | 2017-05-08 | 2017-07-14 | 赣南师范大学 | A kind of digital composite holographic imaging method and device |
-
2010
- 2010-01-06 CN CN2010103000490A patent/CN101788782B/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102096091A (en) * | 2011-01-06 | 2011-06-15 | 西北核技术研究所 | Particle field optical holographic high-precision reproduction collecting system and method |
| CN102096091B (en) * | 2011-01-06 | 2012-10-24 | 西北核技术研究所 | Particle field optical holographic high-precision reproduction collecting system and method |
| CN106950811A (en) * | 2017-05-08 | 2017-07-14 | 赣南师范大学 | A kind of digital composite holographic imaging method and device |
| CN106950811B (en) * | 2017-05-08 | 2019-01-25 | 赣南师范大学 | A composite digital holographic imaging method and device |
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| CN101788782B (en) | 2011-06-29 |
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