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A device and method for processing holographic gold grating using pulsed laser

A pulsed laser, pulsed laser technology, applied in diffraction grating, optics, optical components, etc., can solve the problems of low anti-environmental interference ability and limited stability of grating processing system, achieve high light resistance power threshold, high resolution, improve The effect of efficiency

Active Publication Date: 2020-10-02
ZHONGBEI UNIV
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Problems solved by technology

The grating processing system has limited stability and low ability to resist environmental interference

Method used

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  • A device and method for processing holographic gold grating using pulsed laser
  • A device and method for processing holographic gold grating using pulsed laser

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Embodiment Construction

[0027] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0028] Such as figure 1 As shown, a device for processing holographic gratings using pulsed laser, the device includes a pulsed laser 1, a beam expander collimation system 2, a first reflector 3, a glass substrate 4, an angle adjustment spacer 5, a second reflector 6, Electric displacement platform 7 and control computer 8; said pulse laser 1, beam expander collimation system 2, first reflector 3, glass substrate 4, second reflector 6 are arranged sequentially...

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Abstract

The invention belongs to the field of optical grating processing technology research, and specifically relates to a device and method for processing a holographic gold optical grating through pulse laser. The device comprises a pulse laser, a beam expanding collimating system, a first reflector, a glass substrate, an angle adjustment spacer, a second reflector, an electric displacement platform, and a control computer. The method employs a solid pulse laser, combines with the holographic imaging technology, employs the holographic recording technology of equal thickness interference and enables a processed system to employ an optical path structure, and the beam splitting interference of the pulse laser does not need to be performed in the process, thereby improving the stability of the system. Moreover, the method can achieve the flexible adjustment of the line scribing period of the optical grating and the area of the optical grating, is good in stability, is high in processing efficiency, and can flexibly adjust the line scribing period of the optical grating and the area of the optical grating. The device and method are implemented based on the pulse laser and the equal thickness interference technology.

Description

technical field [0001] The invention relates to the technical field of grating processing, and more specifically, to a processing device and a preparation method of a holographic gold grating. Background technique [0002] Gratings have properties such as dispersion, beam splitting, polarization, and phase matching, and have been widely used in spectral analysis, optical measurement, and integrated optics. The commonly used gratings are reflective gratings, transmission gratings, blazed gratings and holographic gratings. Usually reflection gratings, transmission gratings and blazed gratings are machine-engraved gratings, and holographic gratings are gratings made by optical holographic technology. Compared with machine-engraved gratings, holographic gratings do not require mechanical etching, and there is no rule cycle error, which eliminates the ghost line and accompanying line errors existing in machine-engraved gratings. Therefore, the holographic grating has the advant...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02B5/18
CPCG02B5/1857
Inventor 李克武王志斌王爽李晓
Owner ZHONGBEI UNIV
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