A method for preparing a diamond vortex beam generator by chemical treatment-assisted laser processing and its application

A chemical treatment and vortex beam technology, applied in chemical instruments and methods, liquid cleaning methods, laser welding equipment, etc., can solve the problems of complex preparation process, high cost, poor precision, etc. The effect of low cost and good optical characteristics
CN111360415BActive Publication Date: 2021-03-30JILIN UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
JILIN UNIV
Publication Date
2021-03-30

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Abstract

The invention discloses a method for preparing a diamond vortex beam generator by using chemical-processing assisted laser processing and an application thereof, and belongs to the technical field offemtosecond laser processing. The method comprises the step that a designed spiral zone plate structure is directly written on the surface of a diamond sample by an ultraviolet femtosecond laser, thenthe sample is subjected to ultrasonic cleaning and chemical processing, and finally the vortex beam generator on the surface of the diamond is prepared. The main principle of the method is that a hotmixed acid solution is used for carrying out chemical reaction with a graphitized substance generated in the action process of a laser focus and the diamond surface, so that the graphitized substanceis completely removed, the adverse effect on the obtained structural morphology is avoided, and a vortex beam generator element with low roughness and excellent optical performance is obtained.
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Description

technical field

[0001] The invention belongs to the technical field of femtosecond laser processing, and in particular relates to a diamond vortex beam generator structure with high surface quality and excellent optical performance obtained by chemically treating laser processed diamond samples and its application. Background technique

[0002] Diamond materials have high hardness, high thermal conductivity and low thermal expansion coefficient, chemical inertness and biocompatibility, and are usually used as decorations, preparation of cutting tools, drug carriers, etc. Due to the superior single-photon characteristics of some point defect light sources inside diamond, diamond materials are also widely used in the field of quantum information. With the continuous expansion of application fields, more and more attention has been paid to the high-precision forming and processing of diamond materials. At present, laser cutting, as a traditional method of processing diamond, m...

Claims

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