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Particle field transient multi-picture holography device and method

A technology of holography and particle field, applied in the field of holography, can solve problems such as low time resolution and difficult adjustment of optical path

Inactive Publication Date: 2012-10-17
INST OF FLUID PHYSICS CHINA ACAD OF ENG PHYSICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The technical problem to be solved by the present invention is to propose a particle field transient multi-frame hologram based on photopolymer for the problems of difficult optical path adjustment and low time resolution in the above-mentioned existing particle field transient multi-frame holography technology. Camera device and method

Method used

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  • Particle field transient multi-picture holography device and method
  • Particle field transient multi-picture holography device and method
  • Particle field transient multi-picture holography device and method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0063] Example 1, this device includes related light generated devices, object light adjustment devices, reference light adjustment device, synchronous control device 13, holographic dry board 12.The coherent light generated device is used to receive the trigger signal of the synchronous control device 13 and generate laser pulses and divide it into two -handed light; the object light adjustment device is used to introduce a bouquet of two beams of the two beams generated by the coherent light.Observation area 9, which provides backlight lighting for the observation area 9. The bouquet of light becomes the light after the observation area 9; the synchronous control device 13 is used to generate the device for the relevant light, and the reference light regulation device provides a control signal; the reference light adjustmentThe device is used to regulate the angle and polarization formation of a coherent light generated by the device generated by the device to form a reference l...

Embodiment 2

[0064] Example 2: On the basis of Example 1, the coherent light generated device includes laser 1, beam beam separation device 3.Laser 1, uses the control signal output by the synchronous control device 13 to generate laser pulse; beam beam separation device 3, which is used to divide the pulse signal generated by laser 1 into two coherent light into the object light adjustment device, reference light regulating device, respectivelyThe one -light power ratio of the light and beam separation device of the beam beam separation device 3 input to the light adjustment device 3 inputs the other way power ratio of reference light adjustment device is 1: 2 to 1: 30.

[0065] Preferably, the light and beam beam separation device 3 input to the object light adjustment device 3 input to the reference light adjustment device 3 input to the reference light adjustment device 3 input to the reference light adjustment device is 1: 4.

Embodiment 3

[0066] The diameter of the relevant light spots is enlarged; the second reflector 8 is used to reflect the light light of the first expansion mandatory device 4 to the observation area 9, forming the observation object information in the observation area 9 and irradiated in the holographic dry dryThe items of the board.

[0067] Preferably, the first extension of the bouquet of the 4 amplification multiple is 10 to 40 times.

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Abstract

The invention relates to the field of holography, particularly a particle field transient multi-picture holography device and a particle field transient multi-picture holography method. Aiming at the situation that multi-picture continuous particle field transient holography cannot be carried out in the prior art, the invention provides the particle field transient multi-picture holography device and the particle field transient multi-picture holography method based on a photo-induced polymer. The device comprises a coherent light generating device, an object light regulating device, a reference light regulating device, a synchronization control device, a holographic plate and the like. The method provided by the invention comprises the following steps that the synchronization control device is used to detect the particle field and send signals to the coherent light generating device and a light beam deflection device; the coherent light generating device generates two paths of coherent light according to the signals; one path of the coherent light forms the object light with the particle field information through the object light regulating device; the other path of coherent light forms the reference light through the reference light regulating device; the object light and the reference light form interference fringe on the holographic plate to be recorded by a photo-induced holographic plate. The device can be applied to the field of holography.

Description

Technical field [0001] The invention involves the field of holographic photography, especially the multiple holographic photography devices and methods of a particle field. Background technique [0002] Holographic has long been used in a single shot of particles and fluid fields, and has made great contributions to these fields.Its non -contact, large field of view, depth of field, and three -dimensional appear have unique advantages in the field of particle field diagnosis.The detection of particle fields using holography usually includes three links: record, development and reproduction.Records mainly refer to the two light beams divided by the pulse laser on the same pulse on the surface of the recording medium (holographic dry plate).In the two beams of light, one beam with a particle field information (material light), and the other bundle without particle field information (reference light).The development is mainly for the three types of materials of halogen silver latex,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N21/45G03H1/10
Inventor 李泽仁赵宇李作友罗振雄刘振清蒙建华李军叶雁朱鹏飞魏明宾
Owner INST OF FLUID PHYSICS CHINA ACAD OF ENG PHYSICS
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