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RbZn2BO3Cl2 nonlinear optical crystal, preparation method and application thereof

A nonlinear optics and crystal technology, applied in chemical instruments and methods, optics, crystal growth, etc., can solve problems affecting practical use, growth difficulties, raw material toxicity, etc. good performance

Inactive Publication Date: 2018-05-11
TECHNICAL INST OF PHYSICS & CHEMISTRY - CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the important crystals found in the ultraviolet field mainly include BBO (β-SnB 2 o 4 ), LBO (LiB 3 o 5 ), CBO (CsB 3 o 5 ), CsLiB 6 o 10 (CLBO), KTP (KTiOPO 4 ) and other crystals, among which only KBBF family crystals can be applied in the deep ultraviolet region, but the growth difficulties caused by the toxicity of raw materials and layered habits during the growth process of this type of crystal directly affect the actual use.

Method used

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  • RbZn2BO3Cl2 nonlinear optical crystal, preparation method and application thereof
  • RbZn2BO3Cl2 nonlinear optical crystal, preparation method and application thereof
  • RbZn2BO3Cl2 nonlinear optical crystal, preparation method and application thereof

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Embodiment 1

[0022] Embodiment 1, adopt high temperature solid-phase synthesis method to prepare RbZn 2 BO 3 Cl 2 Nonlinear Optical Crystals:

[0023] The following four raw materials RbCl, ZnCl 2 , ZnO and B 2 o 3 According to the molar ratio RbCl:ZnCl 2 :ZnO:B 2 o 3 = 2:1:3:1 ratio weighs 4.8gRbCl, 2.73gZnCl 2 , 4.89gZnO and 1.4gB 2 o 3 After mixing evenly, grind it, put it into a platinum crucible of Φ40mm×40mm, place it in a crystal growth furnace, raise the temperature to 300°C at a rate of 50°C / hour, keep warm at 300°C for 5 hours, then raise the temperature to 600°C, and keep the temperature at 600°C for 96 hour, at a rate of 50°C / h to room temperature, close the crystal growth furnace, and take out the crystal after the crucible cools down to obtain RbZn 2 BO 3 Cl 2 Polycrystalline.

Embodiment 2

[0024] Embodiment 2, adopt high temperature solid-phase synthesis method to prepare RbZn 2 BO 3 Cl 2 Nonlinear Optical Crystals:

[0025] The following four raw materials RbCl, ZnCl 2, ZnO and B 2 o 3 According to the molar ratio RbCl:ZnCl 2 :ZnO:B 2 o 3 = 2:1:3:1 ratio weighs 4.8gRbCl, 2.73gZnCl 2 , 4.89gZnO and 1.4gB 2 o 3 After mixing evenly, grind it, put it into a platinum crucible of Φ40mm×40mm, place it in a crystal growth furnace, raise the temperature to 300°C at a rate of 55°C / hour, keep warm at 300°C for 5 hours, then raise the temperature to 610°C, and keep the temperature at 610°C for 48 hour, at a rate of 50°C / h to room temperature, close the crystal growth furnace, and take out the crystal after the crucible cools down to obtain RbZn 2 BO 3 Cl 2 Polycrystalline.

Embodiment 3

[0026] Embodiment 3, adopt high temperature solid-phase synthesis method to prepare RbZn 2 BO 3 Cl 2 Nonlinear Optical Crystals:

[0027] The following four raw materials RbCl, ZnCl 2 , ZnO and B 2 o 3 According to the molar ratio RbCl:ZnCl 2 :ZnO:B 2 o 3 = 2:1:3:1 ratio weighs 4.8gRbCl, 2.73gZnCl 2 , 4.89gZnO and 1.4gB 2 o 3 After mixing evenly, grind it, put it into a platinum crucible of Φ40mm×40mm, place it in a crystal growth furnace, raise the temperature to 300°C at a rate of 60°C / hour, keep warm at 300°C for 5 hours, then raise the temperature to 605°C, and keep the temperature at 605°C for 72 hour, at a rate of 50°C / h to room temperature, close the crystal growth furnace, and take out the crystal after the crucible cools down to obtain RbZn 2 BO 3 Cl 2 Polycrystalline.

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Abstract

The invention relates to an RbZn2BO3Cl2 nonlinear optical crystal, preparation and application. The crystal does not have a symmetric center, belongs to a trigonal crystal system, has a space group ofR32, and has the cell parameters of: a=4.9698angstrom, b=4.9698angstrom, c= 27.178angstrom, alpha=beta=90degree, and gamma=120degree. A single crystal can be obtained in a self-flux system by a spontaneous nucleation method; a high temperature solid phase synthesis method is employed to obtain solid powder; high temperature melt spontaneous crystallization process growth is carried out to obtainlaminar and transparent single crystal without wrappage, the obtained crystal has wide light-transmitting wave band, and has high transmittance at 300-2000nm, and the ultraviolet cut-off edge is lessthan 200nm; powder frequency-doubling effect test shows that the crystal can achieve phase matching and the frequency-doubling effect is equivalent to that of KBe2BO3F2 crystal; the crystal has the advantages of high hardness, good mechanical properties, difficult fragmentation and deliquescence, easy processing and preservation, etc.; and the crystal can be used for preparation of nonlinear optical devices.

Description

technical field [0001] The invention belongs to the field of nonlinear optical crystals and their preparation methods and applications, in particular to a kind of RbZn 2 BO 3 Cl 2 Nonlinear optical crystal, its preparation method and application. Background technique [0002] Crystals with nonlinear optical effects are called nonlinear optical crystals. Here nonlinear optical effects refer to effects such as frequency doubling, sum frequency, difference frequency, and parametric amplification. Nonlinear optical effects are only possible in crystals that do not have a center of symmetry. Using the nonlinear optical effect of crystals, nonlinear optical devices such as second harmonic generators, up and down frequency converters, and optical parametric oscillators can be made. The laser generated by the laser can be frequency converted by nonlinear optical devices, so as to obtain more useful wavelengths of laser light, so that the laser can be used more widely. At prese...

Claims

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Application Information

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IPC IPC(8): C30B29/22C30B1/10C30B9/00G02B1/00
CPCC30B1/10C30B9/00C30B29/22G02B1/005
Inventor 陈创天黄倩李如康刘丽娟王晓洋
Owner TECHNICAL INST OF PHYSICS & CHEMISTRY - CHINESE ACAD OF SCI
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