Strontium-doped barium borate ultraviolet double-refraction crystal and growing technology thereof

A birefringent crystal, barium strontium borate technology, applied in the directions of crystal growth, single crystal growth, single crystal growth, etc., can solve the problems of inability to meet high-performance optical components, crystal integrity limitations, easy cracking, etc.

Inactive Publication Date: 2010-09-15
FUJIAN INST OF RES ON THE STRUCTURE OF MATTER CHINESE ACAD OF SCI
View PDF2 Cites 7 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, barium borate and calcite also have problems in practical applications: calcite has cleavage planes, which are easy to crack

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
  • Strontium-doped barium borate ultraviolet double-refraction crystal and growing technology thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] Example 1: Growth of Ba by pulling method 0.95 Sr 0.05 B 2 o 4 crystals.

[0016] Raw material according to BaCO 3 : SrCO 3 :H 3 BO 3 =0.95:0.05:2mol proportioning is accurately weighed, then mixed and ground evenly, after tableting, put in In a platinum crucible, the solid-state reaction was carried out in a muffle furnace at 500°C for 12 hours; after taking it out, the tablet was reground and then heated to 800°C for 24 hours. Put the synthesized above samples into a platinum crucible, and use the pulling method to grow a The size is 25×20×20mm 3 of high quality Ba 0.95 Sr 0.05 B 2 o 4 crystals.

Embodiment 2

[0017] Example 2: Growth of Ba by pulling method 0.90 Sr 0.1 B 2 o 4 the crystal

[0018] Raw material according to BaCO 3 : SrCO 3 :H 3 BO 3 =0.9:0.1:2mol proportioning is accurately weighed, then mixed and ground evenly, after tableting, put in In a platinum crucible, the solid-state reaction was carried out in a muffle furnace at 500°C for 12 hours; after taking it out, the tablet was reground and then heated to 800°C for 24 hours. Put the synthesized above samples into a platinum crucible, and use the pulling method to grow a The size is 25×20×20mm 3 of high quality Ba 0.9 Sr 0.1 B 2 o 4 crystals.

Embodiment 3

[0019] Example 3: Growth of Ba by pulling method 0.85 Sr 0.15 B 2 o 4 the crystal

[0020] Raw material according to BaCO 3 : SrCO 3 :H 3 BO 3 =0.85:0.15:2mol proportioning is accurately weighed, then mixed and ground evenly, after tableting, put in In a platinum crucible, the solid-state reaction was carried out in a muffle furnace at 500°C for 12 hours; after taking it out, the tablet was reground and then heated to 800°C for 24 hours. Put the synthesized above samples into a platinum crucible, and use the pulling method to grow a A high-quality Ba with a size of 25×20×20mm3 0.85 Sr 0.15 B 2 o 4 crystals.

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 strontium-doped barium borate ultraviolet double-refraction crystal and a preparation method thereof. The crystal has a molecular formula of Ba1-xSrxB2O4 (x=0.001- 0.23) and belongs to a trigonal system. The cell parameters of the space group R3c and Ba0.9Sr0.1B2O4 are within the transmission range of 190 to 3500 nm, the transmission rate of ultraviolet band reaches 90%, and the double refraction rate of the wavelength 533nm is: ne=1.5379, n0=1.6619, and the crystal can be used as ultraviolet double refraction crystal. The crystal is grown by using pulling method. The crystal can be widely used for Glan-Taylor and Glan-laser polarizers, especially for high-power ultraviolet polarizers.

Description

technical field [0001] The invention relates to a crystal material as an ultraviolet birefringent optical device. Background technique [0002] Crystal birefringence is an important optical performance parameter of electro-optic functional materials. Birefringent crystal materials are widely used, mainly used in: (1) fiber optic isolator (ISOLATOR) in optical communication; (2) circulator (CIRCULATOR); (3) beam displacement (BEAM DISPLACER); 4 Glan prism and polarization optics. [0003] The existing birefringent materials mainly include: BBO, YVO 4 ,TiO 2 , CaCO 3 and LiNbO 3 and other crystals. Only barium borate (BaB 2 o 4 ) and calcite (CaCO 3 ) can pass through the ultraviolet region, and other crystals are not transparent in ultraviolet. However, barium borate and calcite also have problems in practical applications: calcite has cleavage planes, which are easy to crack during processing, which limits the integrity of the crystal and cannot meet the requiremen...

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): C30B29/22C30B15/00G02B1/02
Inventor 王国富吴少凡谢建凌张莉珍王国建
Owner FUJIAN INST OF RES ON THE STRUCTURE OF MATTER CHINESE ACAD OF SCI
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