CN2760525Y - Optical time delay device capable of providing double optical paths - Google Patents
Optical time delay device capable of providing double optical paths Download PDFInfo
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- CN2760525Y CN2760525Y CN 200420075589 CN200420075589U CN2760525Y CN 2760525 Y CN2760525 Y CN 2760525Y CN 200420075589 CN200420075589 CN 200420075589 CN 200420075589 U CN200420075589 U CN 200420075589U CN 2760525 Y CN2760525 Y CN 2760525Y
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- plane mirror
- light
- level crossing
- light path
- time delay
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- 230000003287 optical effect Effects 0.000 title claims abstract description 22
- 230000007246 mechanism Effects 0.000 claims description 17
- 238000000034 method Methods 0.000 claims description 6
- 230000008569 process Effects 0.000 claims description 6
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 3
- 239000011521 glass Substances 0.000 claims description 3
- 230000001052 transient effect Effects 0.000 abstract description 8
- 238000010521 absorption reaction Methods 0.000 abstract description 5
- 239000000523 sample Substances 0.000 description 10
- 238000001514 detection method Methods 0.000 description 5
- 238000000862 absorption spectrum Methods 0.000 description 4
- 230000004888 barrier function Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000029553 photosynthesis Effects 0.000 description 1
- 238000010672 photosynthesis Methods 0.000 description 1
- 230000011514 reflex Effects 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 238000000844 transformation Methods 0.000 description 1
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Abstract
An optical time delay device capable of providing double optical paths is a core plug-in unit of a transient difference absorption spectrometer and comprises a precision micro-motion translation table T and a group of orthogonal plane mirror groups capable of translating along the axis of the precision micro-motion translation table T, wherein each orthogonal plane mirror group comprises an upper plane mirror M2 and a lower plane mirror M3, a movable plane mirror M4 is arranged on the reflection light path of the upper plane mirror M2, and a hollow right-angle prism P is arranged on the reflection light path of the lower plane mirror M3. Only need to move movable flat mirror M4 from the reflection light path of lower flat mirror M3 to the reflection light path of upper flat mirror M2 on, the utility model discloses can provide the light time delay of two optical paths immediately, especially can provide the time delay that is greater than 670 ps. Because only one precise micromotion translation stage is needed to provide the time delay requirement of two long and short optical paths, the cost can be greatly reduced and the space can be saved compared with the situation that the two precise micromotion translation stages are matched with each other before.
Description
Technical field
The utility model relates to a kind of smooth time-delay mechanism, relates in particular to a kind of light time-delay mechanism that two light paths are provided.
Background technology
At present, along with developing rapidly of science and technology, the particularly widespread use of femtosecond laser, transient state difference absorption spectrum technology is widely used in studying the microcosmic ultrafast process in physics, chemistry, biology and the relevant cross discipline frontier thereof, picture to photosynthesis primary reaction mechanism, photosynthetical system pass can research all must be deep between the molecule of chromoprotein compound, could obtain the kinetic parameter in the life process and the magnanimity information of optical physics and photochemical transformations.At present in transient state difference absorption spectrum is measured, people generally adopt the precise jiggle translation stage of a 100mm to drive one group of orthogonal plane mirror and realize surveying time-delay between light and the pump light, the time-delay of maximum 670ps can be provided, that is to say that maximum can measure at the absorption spectrum change information less than 670ps time period material.But people are also normal to wish to measure the long period (～ns) absorption spectrum change information, this just needs to survey between light and the pump light that bigger time-delay is arranged, and in order to reach above purpose, generally needs the precise jiggle translation stage of two 100mm, such result is that cost improves, the space waste.
Summary of the invention
The utility model purpose provides a kind of light time-delay mechanism that two light paths are provided, and it has solved cost height in the background technology, space waste, the short shortcoming of light path time-delay.
Technical solution of the present utility model is: a kind of light time-delay mechanism that two light paths are provided, comprise precise jiggle translation stage T, can be along one group of orthogonal plane mirror group of the axle center translation of described precise jiggle translation stage T, described orthogonal plane mirror group comprises level crossing M2 and lower plane mirror M3, last level crossing M2 reflected light path is provided with removable level crossing M4, and its special character is: the described light time-delay mechanism of two light paths that provides also comprises the hollow right-angle prism P that is arranged on the lower plane mirror M3 reflected light path.
The above-mentioned light time-delay mechanism that two light paths are provided also comprises can make removable level crossing (M4) move to down translating device Y on the orthogonal plane mirror M3 reflected light path along the axle center vertical direction with described precise jiggle translation stage T.
Above-mentioned last level crossing M2, lower plane mirror M3, hollow right-angle prism P and removable level crossing M4 are coated with the K of 400～700nm broadband total reflection film by the surface
9Glass or silica glass optical process.
The above-mentioned light time-delay mechanism of two light paths that provides also can comprise shockproof optical table, and described precise jiggle translation stage T, last level crossing M2, lower plane mirror M3, removable level crossing M4 and hollow right-angle prism P all are arranged on the shockproof optical table.
The utility model has the advantages that:
1, can provide time-delay greater than 670ps.The utility model can be realized bigger light time-delay by the ingenious combination of orthogonal plane mirror group and hollow right-angle prism on existing Equipment Foundations.
2, the light time-delay of two light paths can be provided immediately.Only need removable level crossing M4 is moved on the reflected light path of level crossing M2 from the reflected light path of lower plane mirror M3, can realize of the switching of short optical path difference to long optical path difference.
3, cost is low.The utility model only needs a precise jiggle translation stage that the time-delay needs of a long and short two light path can be provided, and former relatively two situations that the precise jiggle translation stage cooperatively interacts and just can finish can reduce cost significantly and save the space.
The explanation of accompanying drawing drawing
Fig. 1 is the long light path synoptic diagram of the utility model when being used for transient state difference absorption spectrometer;
Fig. 2 is the short light path synoptic diagram of the utility model when being used for transient state difference absorption spectrometer;
Wherein: T-precise jiggle translation stage, the last level crossing of M2-, M3-lower plane mirror, the hollow right-angle prism of P-, S1, S2-light hurdle group, the removable level crossing of M4-, the shockproof optical table of A-, M1-pump light level crossing, M6-surveys the optical plane mirror, M5-time-delay pump light level crossing, S-sample, L1, L2-optical lens group, the B-light barrier, the pump-pump light, probe-surveys light, Y-translating device.
Embodiment
Below in conjunction with Fig. 1 and Fig. 2 the utility model is further specified.Can provide the light time-delay mechanism of two light paths to comprise precise jiggle translation stage T, the minimum step amount of precise jiggle translation stage T is 0.00125mm, this precise jiggle translation stage T is provided with one group of orthogonal plane mirror group, this orthogonal plane mirror group comprises level crossing M2 and lower plane mirror M3, last level crossing M2 and lower plane mirror M3 are placed on precise jiggle translation stage T with right angle quadrature form upward also can be along the axle center translation of precise jiggle translation stage T, last level crossing M2 reflected light path is provided with removable level crossing M4, lower plane mirror M3 reflected light path is provided with hollow right-angle prism P, removable level crossing M4 is arranged on the translating device Y that can move along the axle center vertical direction with precise jiggle translation stage T, and can translation between last level crossing M2 reflected light path and lower plane mirror M3 reflected light path, last level crossing M2, lower plane mirror M3, hollow right-angle prism P and removable level crossing M4 are coated with the K of 400～700nm broadband total reflection film by the surface
9Glass or silica glass optical process.In order to improve measuring accuracy, precise jiggle translation stage T, last level crossing M2, lower plane mirror M3, removable level crossing M4, hollow right-angle prism P all is arranged on the shockproof optical table.
The utility model is mixed laser system, sample chamber, detection system and some basic optical elements, is exactly the complete transient state difference absorption spectrometer of a cover.Specifically, transient state difference absorption spectrometer is except the utility model, but the laser system that also comprises emission detection light probe and pump light pump, light hurdle group S1 is set on the input path of pump light pump, S2, pump light pump is incided on the level crossing M2 with miter angle, a time-delay pump light level crossing M5 is set on the reflected light path of removable level crossing M4, time-delay pump light pump after reflection is provided with optical lens group L1 with the light path of surveying light probe, L2, between optical lens group L1 and L2, be provided with sample S, pump light pump ends at light barrier B after passing sample S, is provided with detection system at the rear of L2.
Principle of work of the present utility model is:
Incide last level crossing M2 in the orthogonal plane mirror group from the pump light pump of laser system by pump light level crossing M1, the direction of light path is by light hurdle group S1, S2 determines, and with the axis parallel of precise jiggle translation stage T, pump light pump incides lower plane mirror M3 through last level crossing M2, arrive hollow right-angle prism P again, reflex to lower plane mirror M3 and last level crossing M2 again, behind removable level crossing M4 and time-delay pump light level crossing M5, incide sample S, probe carries out intersecting on time and the space in sample S with detection light, the microcosmic transient state dynamic process of detection system record sample S under the disturbance of pump light pump, be long light path this moment, if removable level crossing M4 moves in the light path of lower plane mirror M3 and hollow right-angle prism P along translating device Y, corresponding is short light path, then can realize the conversion of short light path and long light path in the experiment according to demand, precise jiggle translation stage T can realize the fine setting of light path.
Claims (4)
1, a kind of light time-delay mechanism that two light paths are provided, comprise precise jiggle translation stage (T), can be along one group of orthogonal plane mirror group of the axle center translation of described precise jiggle translation stage (T), described orthogonal plane mirror group comprises level crossing (M2) and lower plane mirror (M3), last level crossing (M2) reflected light path is provided with removable level crossing (M4), it is characterized in that: the described light time-delay mechanism of two light paths that provides also comprises the hollow right-angle prism (P) that is arranged on lower plane mirror (M3) reflected light path.
2, the light time-delay mechanism that two light paths are provided according to claim 1 is characterized in that: the described light time-delay mechanism that two light paths are provided comprises can make removable level crossing (M4) move to down translating device (Y) on orthogonal plane mirror (M3) reflected light path along the axle center vertical direction with described precise jiggle translation stage (T).
3, the light time-delay mechanism that two light paths are provided according to claim 1 and 2 is characterized in that: described upward level crossing (M2), lower plane mirror (M3), hollow right-angle prism (P) and removable level crossing (M4) are coated with the K of 400～700nm broadband total reflection film by the surface
9Glass or silica glass optical process.
4, the light time-delay mechanism that two light paths are provided according to claim 3, it is characterized in that: the described light time-delay mechanism of two light paths that provides comprises shockproof optical table, and described precise jiggle translation stage (T), last level crossing (M2), lower plane mirror (M3), removable level crossing (M4) and hollow right-angle prism (P) all are arranged on the shockproof optical table.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420075589 CN2760525Y (en) | 2004-12-31 | 2004-12-31 | Optical time delay device capable of providing double optical paths |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420075589 CN2760525Y (en) | 2004-12-31 | 2004-12-31 | Optical time delay device capable of providing double optical paths |
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| Publication Number | Publication Date |
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| CN2760525Y true CN2760525Y (en) | 2006-02-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 200420075589 Expired - Fee Related CN2760525Y (en) | 2004-12-31 | 2004-12-31 | Optical time delay device capable of providing double optical paths |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010069118A1 (en) * | 2008-12-17 | 2010-06-24 | 中国科学院西安光学精密机械研究所 | Device for measuring signal-noise ratio of ultra-short pulse |
| CN101916570A (en) * | 2010-07-02 | 2010-12-15 | 中国科学院上海光学精密机械研究所 | Synthetic Aperture Femtosecond Pulse Digital Holographic Recording Device |
| CN102486572A (en) * | 2010-12-06 | 2012-06-06 | 中国科学院西安光学精密机械研究所 | Method and device for realizing multiple optical paths |
| CN103018214A (en) * | 2011-09-21 | 2013-04-03 | 中国科学院福建物质结构研究所 | Reflection type optical path transient state absorption spectrometer |
| CN107505054A (en) * | 2017-08-07 | 2017-12-22 | 中国科学院化学研究所 | Real-time in-situ Ps Laser Pulse autocorrelation function analyzer |
| CN107632347A (en) * | 2017-10-31 | 2018-01-26 | 天津大学 | A kind of optical delay line of big amount of delay continuously adjustabe |
| CN109632705A (en) * | 2019-01-15 | 2019-04-16 | 西安文理学院 | Single-shot femtosecond time resolution absorption spectrum measuring apparatus |
-
2004
- 2004-12-31 CN CN 200420075589 patent/CN2760525Y/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010069118A1 (en) * | 2008-12-17 | 2010-06-24 | 中国科学院西安光学精密机械研究所 | Device for measuring signal-noise ratio of ultra-short pulse |
| CN101916570A (en) * | 2010-07-02 | 2010-12-15 | 中国科学院上海光学精密机械研究所 | Synthetic Aperture Femtosecond Pulse Digital Holographic Recording Device |
| CN102486572A (en) * | 2010-12-06 | 2012-06-06 | 中国科学院西安光学精密机械研究所 | Method and device for realizing multiple optical paths |
| CN102486572B (en) * | 2010-12-06 | 2014-08-27 | 中国科学院西安光学精密机械研究所 | Method for realizing multiple optical paths |
| CN103018214A (en) * | 2011-09-21 | 2013-04-03 | 中国科学院福建物质结构研究所 | Reflection type optical path transient state absorption spectrometer |
| CN103018214B (en) * | 2011-09-21 | 2016-08-10 | 中国科学院福建物质结构研究所 | A kind of reflection type optical path transient state absorption spectrometer |
| CN107505054A (en) * | 2017-08-07 | 2017-12-22 | 中国科学院化学研究所 | Real-time in-situ Ps Laser Pulse autocorrelation function analyzer |
| CN107632347A (en) * | 2017-10-31 | 2018-01-26 | 天津大学 | A kind of optical delay line of big amount of delay continuously adjustabe |
| CN107632347B (en) * | 2017-10-31 | 2019-08-16 | 天津大学 | A kind of optical delay line that big amount of delay is continuously adjustable |
| CN109632705A (en) * | 2019-01-15 | 2019-04-16 | 西安文理学院 | Single-shot femtosecond time resolution absorption spectrum measuring apparatus |
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| CF01 | Termination of patent right due to non-payment of annual fee |