Oriented cutting method for preparing infrared non-linear optics element from yellow copper positive uni-axial crystal

A non-linear optics and uniaxial crystal technology, applied in the direction of manufacturing tools, stone processing equipment, fine working devices, etc., can solve the problems of the health of the operator, low precision, environmental pollution, etc., to achieve environmental protection , high precision, and simplified operating procedures

Inactive Publication Date: 2009-07-22
SICHUAN UNIV
View PDF0 Cites 6 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantages of these methods are that the equipment is relatively complicated, the precision is not high, and the experience and technical proficie

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Oriented cutting method for preparing infrared non-linear optics element from yellow copper positive uni-axial crystal
  • Oriented cutting method for preparing infrared non-linear optics element from yellow copper positive uni-axial crystal
  • Oriented cutting method for preparing infrared non-linear optics element from yellow copper positive uni-axial crystal

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0030] The method of the present invention will be further described below with reference to the accompanying drawings.

[0031] In this example, chalcopyrite-type positive uniaxial crystal ZnGeP is used. 2 Preparation of infrared nonlinear OPO optical elements, the phase matching angle θm=55°, the azimuth angle .

[0032] by ZnGeP 2 There are semi-open pores with consistent reflection on the surface of the ingot, and the cleavage planes {101} and {112} are obtained.

[0033] In the present embodiment, the step of directional cutting is as follows:

[0034] (1) Determine the C-axis direction of the crystal

[0035] like figure 1 As shown, the ZnGeP 2 The known cleavage plane (101) of the crystal is placed at the origin position on the standard pole figure of the (101) plane of the crystal with the Wu's mesh scale, and then the crystal is rotated to move its other cleavage plane {112}. The line direction is aligned with any pole in {112} on the standard pole figure. Whe...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention relates to a directional cutting method for preparing infrared nonlinear optical elements from a chalcopyrite uniaxial positive crystal, which comprises the following steps: (1) according to cleavage surfaces {112} and {101} of the chalcopyrite uniaxial positive crystal, utilizing a crystal standard pole figure with Wuwov's intersection ruler and an X-ray diffractometer to determine the direction of a C axis of the crystal through theta-2theta continuous scanning; (2) putting the crystal of which the direction of the C axis is determined on a cutting machine, rotating a sample stage for delta theta toward the direction of the C axis according to a phase matching angle theta m required by an optical element, and cutting the crystal to obtain an original sample of the optical element, wherein the delta theta= theta (101) - the theta m; (3) putting the original sample of the optical element on the sample stage of the X-ray diffractometer, determining an oscillation photograph of a cutting surface of the original sample of the optical element, and obtaining a diffraction peak place value theta' and delta theta', wherein the delta theta'=absolute (theta'- theta'(101)); and (4) finishing the optical element, and correcting the cutting surface of the original sample of the optical element until the delta theta'=the delta theta.

Description

technical field [0001] The invention belongs to the field of preparation and processing of crystal nonlinear optical components, in particular to a directional cutting processing method for preparing infrared nonlinear optical components by using chalcopyrite positive uniaxial crystals with no directional characteristics. Background technique [0002] Chalcopyrite crystals used as infrared nonlinear optical components mainly include I-III-VI compounds and II-IV-V compounds. The chalcopyrite single crystals include positive uniaxial crystals and negative single crystals. Axial crystals are generally prepared by the Bridgman-Stockbarger method (B-S method). Due to the strong constraints of the growth vessel, coupled with the influence of growth rate, melt viscosity, etc., the grown crystal ingot is usually cylindrical and has no obvious directional characteristics in appearance. It needs to be accurately processed into various phase matching angles (θm) and azimuth angles ( ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): B28D5/00
Inventor 朱世富赵北君陈宝军何知宇
Owner SICHUAN UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap