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Compound rubidium fluoroborate phosphate, rubidium fluoroborate phosphate nonlinear optical crystal, preparation method and application

A technology of nonlinear optics and fluoborophosphoric acid, which is applied in nonlinear optics, chemical instruments and methods, phosphorus compounds, etc., can solve the problems of large-sized crystals such as difficulty, refractive index dispersion, and limited applications, and achieve a wide light transmission band , Stable physical and chemical properties, moderate mechanical hardness

Active Publication Date: 2022-06-28
XINJIANG TECHN INST OF PHYSICS & CHEM CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to its relatively small birefringence (Δn=0.04-0.05), its shortest frequency doubling wavelength is only 276nm, which makes it unable to achieve phase matching in the deep ultraviolet region
Similar to LBO crystals, CBO and CLBO crystals also limit their application in the deep ultraviolet region due to their relatively small birefringence
Although the BBO crystal has a large frequency doubling coefficient and birefringence, its shortest frequency doubling wavelength is 204.8nm due to its severe refractive index dispersion in the deep ultraviolet region, which limits its application in the deep ultraviolet region.
KBBF can achieve direct six-fold frequency output of 1064nm fundamental frequency light, but due to the layered growth habit of KBBF, it is difficult to grow large-sized crystals, which limits its application to a certain extent

Method used

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  • Compound rubidium fluoroborate phosphate, rubidium fluoroborate phosphate nonlinear optical crystal, preparation method and application
  • Compound rubidium fluoroborate phosphate, rubidium fluoroborate phosphate nonlinear optical crystal, preparation method and application
  • Compound rubidium fluoroborate phosphate, rubidium fluoroborate phosphate nonlinear optical crystal, preparation method and application

Examples

Experimental program
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Effect test

Embodiment 1

[0035] According to the reaction formula: RbPF 6 +Rb 2 CO 3 +6B 2 O 3 =Rb 3 B 11 PO 19 F 3 +CO 2 ↑ +BF 3 ↑ prepare Rb 3 B 11 PO 19 F 3 Compound, using vacuum packaging method, the specific operation is carried out according to the following steps:

[0036] a. Mix RbPF in a molar ratio of 1:1:6 6 : Rb 2 CO 3 : B 2 O 3 Mix evenly, transfer to a quartz tube, and the degree of vacuum is 1×10 -3 Pa, and seal the quartz tube with a flame spray gun;

[0037] b. Put the quartz tube in step a into a muffle furnace, raise the temperature to 300°C at a rate of 5°C / h, keep the temperature for 1 day, and then drop to room temperature to obtain compound Rb 3 B 11 PO 19 F 3 .

Embodiment 2

[0039] According to the reaction formula: Rb 4 PF 6 +2RbHCO 3 +6B 2 O 3 =Rb 3 B 11 PO 19 F 3 +2CO 2 ↑ +H 2 O ↑ +BF 3 ↑ prepare Rb 3 B 11 PO 19 F 3 Compound, using vacuum packaging method, the specific operation is carried out according to the following steps:

[0040] a. Mix RbPF in a molar ratio of 1:2:6 6 : RbHCO 3 : B 2 O 3 Mix evenly, transfer to a quartz tube, and the degree of vacuum is 1×10 -3 Pa, and seal the quartz tube with a flame spray gun;

[0041] b. Put the quartz tube in step a into a muffle furnace, heat it up to 400°C at a rate of 10°C / h, keep the temperature for 3 days, and then drop to room temperature to obtain compound Rb 3 B 11 PO 19 F 3 .

Embodiment 3

[0043] According to the reaction formula: Rb 4 PF 6 +2RbNO 3 +6B 2 O 3 =Rb 3 B 11 PO 19 F 3 +NO ↑ +NO 2 ↑ +BF 3 ↑ prepare Rb 3 B 11 PO 19 F 3 Compound, using vacuum packaging method, the specific operation is carried out according to the following steps:

[0044] a. Mix RbPF in a molar ratio of 1:2:6 6 : RbNO 3 : B 2 O 3 Mix evenly, transfer to a quartz tube, and the degree of vacuum is 1×10 -3 Pa, and seal the quartz tube with a flame spray gun;

[0045] b. Put the quartz tube in step a into a muffle furnace, heat it up to 320°C at a rate of 6°C / h, keep it for 2 days, and then drop to room temperature to obtain compound Rb 3 B 11 PO 19 F 3 .

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Abstract

The invention relates to a rubidium fluoroborate phosphate compound, a rubidium fluoroborate phosphate nonlinear optical crystal, a preparation method and application, the molecular formula of the compound is Rb3B11PO19F3, the molecular weight is 767.29, and the compound is prepared by adopting a vacuum packaging method; the molecular formula of the crystal is Rb3B11PO19F3, the molecular weight is 767.29, the crystal belongs to a trigonal system, the space group is R3, the cell parameters of the crystal are as follows: a = b = 11.3715 (1), c = 12.0240 (3), alpha = beta = 90 degrees, gamma = 120 degrees, Z = 3 and V = 1346.53 (4), and the crystal is prepared by adopting a sealed molten salt method or a Bridgman-Stockbarger method. The Rb3B11PO19F3 nonlinear optical crystal with the centimeter-level size, which is obtained by the method, can be applied to an all-solid-state laser as an ultraviolet and deep ultraviolet nonlinear optical crystal.

Description

technical field [0001] The invention relates to a compound rubidium fluoroborophosphate and rubidium fluoroborophosphate nonlinear optical crystal, and a preparation method and application thereof. Background technique [0002] Nonlinear optical crystals (also known as frequency doubling crystals or frequency conversion crystals) can convert the output wavelength of the laser to generate new laser wavelengths through the frequency conversion effect, thereby creating a way to generate new laser radiation. At present, the ultraviolet and deep ultraviolet nonlinear optical crystals used in industry mainly include LiB. 3 O 5 (LBO), CsB 3 O 5 (CBO), CsLiB 6 O 10 (CLBO), β-BaB 2 O 4 (β-BBO) and KBe 2 BO 3 F 2 (KBBF) crystals. LBO crystal has a wide light transmission range, high optical uniformity, large effective frequency doubling coefficient (3ⅹKDP) and high damage threshold (18.9GW / cm 2 ). However, due to its relatively small birefringence (Δn=0.04-0.05), its shor...

Claims

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Application Information

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IPC IPC(8): C30B29/12G02F1/355C01B25/455C30B11/00
CPCC30B29/12C30B11/00C01B25/455G02F1/3551
Inventor 潘世烈李子健程丙良张方方
Owner XINJIANG TECHN INST OF PHYSICS & CHEM CHINESE ACAD OF SCI
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