Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Large size strontium borophosphate nonlinear optical crystal and its growth method and use

A nonlinear optics, strontium borophosphate technology, applied in the direction of crystal growth, single crystal growth, single crystal growth, etc., can solve the problem that the crystal cannot be purchased in the market, has not been seen, and there is no SrBPO single crystal nonlinear optical performance test results, etc.

Inactive Publication Date: 2004-04-28
TECHNICAL INST OF PHYSICS & CHEMISTRY - CHINESE ACAD OF SCI
View PDF0 Cites 5 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

To test the basic physical properties (including nonlinear optical properties) of a crystal, the crystal needs to be a single crystal with a size of several millimeters or even centimeters. So far, there has been no relevant preparation of SrBPO with a size sufficient for physical property testing. 5 There is no single crystal report, and the crystal cannot be purchased in the market, and there is no report on SrBPO 5 The report of the test results of the nonlinear optical properties of single crystal or SrBPO 5 The Report of Using Single Crystal to Fabricate Nonlinear Optical Devices

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
  • Large size strontium borophosphate nonlinear optical crystal and its growth method and use
  • Large size strontium borophosphate nonlinear optical crystal and its growth method and use
  • Large size strontium borophosphate nonlinear optical crystal and its growth method and use

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0047] Example 1: Preparation of large-size strontium borophosphate nonlinear optical crystals by the method of the present invention

[0048] 1. Synthesis of strontium borophosphate (SrBPO 5 ) compound:

[0049] Sintering is carried out at a high temperature of 1000°C by a solid-state synthesis method, and its chemical equation is: [(7) reaction formula]

[0050] SrCO 3 、H 3 BO 3 , NH 4 h 2 PO 4 Put it into a mortar in a stoichiometric ratio, mix and grind it carefully, then put it into a Φ60mm×60mm open platinum crucible, press it tightly, put it in a muffle furnace, slowly raise it to 500°C, keep the temperature for 24 hours, and wait for it to cool Take out the crucible, the sample is relatively loose at this time, then take out the sample and grind it evenly again, then put it in the crucible, keep the temperature in the muffle furnace at 1000°C for another 48 hours, at this time the sample is formed into one piece. At this time, take it out, put it into a m...

Embodiment 2

[0062] Homemade Li 4 P 2 o 7 Flux: use analytically pure NH 4 h 2 PO 4 and Li 2 CO 3 Mix according to molar ratio, and its molar ratio is: NH 4 h 2 PO 4 : Li 2 CO 3 = 1:1, after mixing and grinding, sintering at a temperature of 650-700°C for 36 hours to make Li 4 P 2 o 7 flux;

[0063] Will homemade Li 4 P 2 o 7 Flux and the SrBPO synthesized by the above (6) reaction formula 5 Mix according to the following molar ratio, SrBPO 5 : Li 4 P 2 o 7 =1∶0.8, after mixing evenly, put it into an open platinum crucible of Φ100mm×100mm, put the crucible into a vertical heating furnace, seal the opening at the top of the furnace with insulating material, and place the furnace top and the center of the crucible Leave a small hole in the corresponding place for the seed rod to enter and exit, heat up to 1000°C, keep the temperature for 72 hours and then quickly cool down to 848°C (3°C above the saturation temperature), and cut the SrBPO along the c-axis 5The seed cry...

Embodiment 3

[0065] Selected with SrBPO 5 Equimolar ratio of SrCO 3 、H 3 BO 3 with (NH 4 ) 2 HPO 4 mixture of BPO 4 Available analytically pure H 3 BO 3 , (NH 4 ) 2 HPO 4 According to its stoichiometric ratio alternative selection, according to the following molar ratio for preparation, SrCO 3 :H 3 BO 3 :(NH 4 ) 2 HPO 4 : NaF=1:1.7:1.7:0.2, then use a platinum crucible with an opening of Φ100mm×100mm as the container, put the crucible into the single crystal growth furnace, seal the opening at the top of the furnace with insulating material, and connect the top of the furnace with the crucible A small hole is left at the corresponding position of the center for the seed rod to enter and exit. Slowly raise the temperature to 1080°C, keep the temperature for 90 hours and then quickly cool down to 945°C (6°C above the saturation temperature). SrBPO cut along the c-axis 5 The seed crystal is fixed on the lower end of the seed rod with a platinum wire, and the seed crystal is i...

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 present invention relates to large size nonlinear SrBPO5 optical crystal with size of (10-70)x(10-70)x(10-70) mm. It has wide transparent wavelength range of 190-3000 nm, negative monocrystal axis and Mohs' hardness 6.0. The growth process includes heating SrBPO5 in molar ratio, BPO4-R or Li4P2O7 as fluxing agent, maintaining and lower to the temperature 2-10 deg.c higher than the saturated temperature to obtain melt; setting the seed crystal in seed crystal rod inside the melt, maintaining for 0.5-6 hr, lowering to the saturated temperature fast, lowering the temperature in the rate of 0.2-5 deg.c / day, hoisting the crystal to over the liquid surface and lowering the temperature in the rate of 5-100 deg.c / hr to obtain the crystal. The crystal may be used in making double frequency generator, up and down frequency converter, optical parametric oscillator and other non-linear optical devices.

Description

technical field [0001] The invention relates to a nonlinear optical crystal and its growth method and application, in particular to a high-quality and large-size strontium borophosphate nonlinear optical crystal grown by flux method and its growth method and application. Background technique [0002] In laser technology, the laser wave bands that can be directly obtained by using laser crystals are limited, and there are still blank wave bands from ultraviolet to infrared spectral regions. Using nonlinear optical crystals, through nonlinear optical effects such as frequency doubling, frequency mixing, and optical parametric oscillation, the limited laser wavelength can be converted into a new band of laser light. Using this technology can fill in the blank spectral region of the laser wavelength emitted by various laser devices, so that the laser can be used more widely. The all-solid-state blue-green laser system can be realized by generating near-infrared laser light from...

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): C30B15/00C30B29/14
Inventor 吴以成潘世烈傅佩珍陈创天
Owner TECHNICAL INST OF PHYSICS & CHEMISTRY - CHINESE ACAD OF SCI
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com