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

Nonlinear optical crystal and preparation method thereof

A nonlinear optics, crystal technology, applied in nonlinear optics, chemical instruments and methods, optics, etc., can solve the problems of low conversion and amplification efficiency, can not absorb idler light well, etc., to improve the conversion and amplification efficiency , Improve the efficiency of laser conversion and amplification, and the effect of easy growth

Inactive Publication Date: 2013-06-05
SHANGHAI INST OF CERAMIC CHEM & TECH CHINESE ACAD OF SCI
View PDF2 Cites 4 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Therefore, the object of the present invention is aimed at YCOB crystal can not well absorb the idler light of specific wave band in the prior art, and the conversion and amplification efficiency in OPCPA system are lower technical problem, provide a kind of new nonlinear optical crystal and its Preparation

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
  • Nonlinear optical crystal and preparation method thereof
  • Nonlinear optical crystal and preparation method thereof
  • Nonlinear optical crystal and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] Embodiment 1 pulling method grows Sm 0.05 Y 0.95 Ca 4 O(BO 3 ) 3 Crystal (x=0.05) 0.05Sm 2 o 3 +0.95Y 2 o 3 +8CaCO 3 +6H 3 BO 3 →2Sm 0.05 Y 0.95 Ca 4 O(BO 3 ) 3 +8CO 2 +9H 2 o

[0020] CaCO with a purity of 99.99% 3 , Y 2 o 3 、Sm 2 o 3 and H 3 BO 3 Raw materials are prepared according to the chemical formula, the raw materials are fully mixed and compacted, and then sintered at 1300°C for 24 hours to obtain Sm 0.05 Y 0.95 Ca 4 O(BO 3 ) 3 Compound raw material.

[0021] Using a medium frequency induction heating pull furnace, the compound raw material is placed in an iridium crucible, and the N 2 As a protective gas, heat up to 1465°C for 2 hours and 30 minutes to melt the sintered material, keep the temperature for 4 hours to stabilize the melt, and the seeding temperature is 1405°C. During the growth process, the rotational speed was 20 rpm, and the pulling speed was 0.5 mm / h.

[0022] After seeding, shouldering, and equal diameter stage...

Embodiment 2

[0026] Embodiment 2 pulling method grows Sm 0.3 Y 0.7 Ca 4 O(BO 3 ) 3 Crystal (x=0.3) 0.3Sm 2 o 3 +0.7Y 2 o 3 +8CaCO 3 +6H 3 BO 3 →2Sm 0.3 Y 0.7 Ca 4 O(BO 3 ) 3 +8CO 2 +9H 2 o

[0027] CaCO with a purity of 99.99% 3 , Y 2 o 3 、Sm 2 o 3 and H 3 BO 3 Raw materials are prepared according to the chemical formula, the raw materials are fully mixed and compacted, and then sintered at 1250°C for 24 hours to obtain Sm 0.3 Y 0.7 Ca 4 O(BO 3 ) 3 Compound raw materials.

[0028] Using a medium frequency induction heating pull furnace, the compound raw material is placed in an iridium crucible, and the N 2 As a protective gas, heat up to 1465°C for 2 hours and 30 minutes to melt the sintering material, keep the temperature for 4 hours to stabilize the melt, and the seeding temperature is 1390°C. During the growth process, the rotational speed was 19 rpm, and the pulling speed was 0.5 mm / h.

[0029] After seeding, shouldering, and equal diameter stages, the ...

Embodiment 3

[0033] Embodiment 3 pulling method grows Sm 0.5 Y 0.5 Ca 4 O(BO 3 ) 3 Crystal (x=0.5) 0.5Sm 2 o 3 +0.5Y 2 o 3 +8CaCO 3 +6H 3 BO 3 →2Sm 0.5 Y 0.5 Ca 4 O(BO 3 ) 3 +8CO 2 +9H 2 o

[0034] CaCO with a purity of 99.99% 3 , Y 2 o 3 、Sm 2 o 3 and H 3 BO 3 Raw materials are formulated according to the chemical formula, the raw materials are fully mixed and compacted, and then sintered at 1200 ° C for 20 hours to obtain Sm 0.5 Y 0.5 Ca 4 O(BO 3 ) 3 Compound raw material.

[0035] Using a medium frequency induction heating pull furnace, the compound raw material is placed in an iridium crucible, and the N 2 As a protective gas, heat up to 1450°C for 3 hours to melt the sintered material, keep the temperature for 4 hours to stabilize the melt, and cool down to the next temperature of 1395°C. During the growth process, the rotation speed was 18rpm, and the pulling speed was 0.5mm / h.

[0036] After the stages of seeding, shouldering, and equal diameter, the ...

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 discloses a nonlinear optical crystal, which has a crystal structure the same as that of a YCa4O(BO3)3 crystal, and belongs to the field of a Cm space group and an m point group. The nonlinear optical crystal is a samarium-yttrium-calcium-oxygen borate crystal; the chemical formula of the nonlinear optical crystal is SmxY1-xCa4O(BO3)3, wherein x is more than 0 and less than 1; and the nonlinear optical crystal is obtained through a pulling method by adopting CaCO3, Y2O3, Sm2O3 and H3BO3 in stoichiometric proportion. The samarium-yttrium-calcium-oxygen borate crystal disclosed by the invention has good nonlinear optical property, can be used for manufacturing a laser nonlinear optical device and can increase the transformation and amplification efficiency of the laser nonlinear optical device by absorbing idler-frequency light with a specific wavelength.

Description

technical field [0001] The invention relates to a nonlinear optical crystal and a preparation method thereof. Background technique [0002] Human beings are facing severe energy problems. Nuclear fusion energy, as an inexhaustible, clean energy without pollution, is an ideal new energy source for human beings. Optical parametric chirped pulse amplification (OPCPA) technology is the preferred fast-ignition laser system technology for inertial confinement fusion, which requires high-quality, large-diameter crystal frequency devices. YCOB (YCa 4 O(BO 3 ) 3 ) crystals have good nonlinear optical properties, and large-size high-quality crystals can be prepared at the same time. It has been reported to be used in the optical parametric amplification (OPA) device of the OPCPA system as a high-power frequency conversion material, which is expected to replace the traditional KDP , LBO, BBO and other crystals to obtain higher peak and average energy output. [0003] YCOB crystals...

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
Patent Type & Authority Applications(China)
IPC IPC(8): C30B29/22C30B15/00G02F1/355
Inventor 涂一帆涂小牛孔海宽忻隽郑燕青施尔畏
Owner SHANGHAI INST OF CERAMIC CHEM & TECH 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