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Device and method for measuring dynamic spatial resolution of synchronous scanning streak camera

A technology of spatial resolution and streak camera, which is applied in the direction of measuring devices, machine/structural component testing, optical instrument testing, etc., can solve the problems of high laser requirements, large loss of light energy, inaccurate measurement results, etc., and achieve the target contrast High, light energy loss is small, the effect of reducing light energy loss

Active Publication Date: 2017-04-26
XI'AN INST OF OPTICS & FINE MECHANICS - CHINESE ACAD OF SCI
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Problems solved by technology

[0004] In order to solve the disadvantages of inaccurate measurement results of traditional testing methods, large loss of light energy due to mismatched fields of view, and high requirements for testing lasers, the present invention proposes a measurement device and method for dynamic spatial resolution of a synchronous scanning streak camera , capable of high-precision measurement of the dynamic spatial resolution of a synchronous scanning streak camera

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  • Device and method for measuring dynamic spatial resolution of synchronous scanning streak camera

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Embodiment Construction

[0021] Such as figure 1 As shown, the measuring device of the synchronous scanning fringe camera spatial resolution provided by the present invention utilizes a laser 1, a beam splitter 2, a fast diode 3, a collimating objective lens 4, a resolving power plate 5 (resolving power) installed in a clamping frame 6 The plate is also called a resolution plate, which is a combination of a target plate) and a telescope 7. Under the irradiation of laser light, the resolution plate 5 is imaged on the slit of the streak camera to be measured through the telescope 7, and the light produced by the fast diode The level signal triggers the scanning of the streak camera to realize the measurement of the dynamic spatial resolution of the streak camera to be tested.

[0022] The specific working process is:

[0023] When working, turn on the laser 1, and after the output is stable, the laser output from the laser 1 is split by the beam splitter 2: a beam of light is reflected by the beam spli...

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Abstract

The invention provides a device and a method for measuring the dynamic spatial resolution of a synchronous scanning streak camera, and aims to solve the disadvantages of the traditional test method, for example, the measurement result is not accurate, there is high light energy loss under the condition of field mismatch, and test has high requirement for a laser. The device comprises a laser, a spectroscope, a collimating objective lens, a resolution board and a telescope, which are arranged in turn on the same light path. A fast diode is arranged on the reflected light path of the spectroscope, and the fast diode is used for generating a trigger signal for the synchronous scanning circuit of a streak camera to be measured. A collimated laser beam output from the collimating objective lens lights up the resolution board. The resolution board is imaged on the slit of the streak camera to be measured through the telescope. The image of the resolution board is conjugate with the resolution board.

Description

technical field [0001] The invention belongs to the field of photoelectric detection, and relates to a measuring device and a measuring method for the spatial resolution of a streak camera, in particular to a measuring device and a measuring method for the dynamic spatial resolution of a synchronous scanning streak camera. Background technique [0002] Streak camera is the only high-end scientific measurement and diagnostic instrument with both ultra-high time resolution and high spatial resolution. It is a necessary means to realize the detection of microscopic and ultra-fast processes, and it is of great significance for basic frontier scientific research and major original innovations. The synchronous scanning streak camera is a kind of streak camera, which can test the instantaneous change of weak periodic light field. In many basic sciences and applied sciences, such as the study of photosynthesis mechanism, exciton migration, electron spin relaxation, charge transfer, ...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01M11/02
CPCG01M11/00
Inventor 陈永权赵建科段亚轩李坤聂申宋琦
Owner XI'AN INST OF OPTICS & FINE MECHANICS - CHINESE ACAD OF SCI