Nonlinear optical crystal Rb4Ge3B6O17

A technology of nonlinear optics and crystals, applied in the field of nonlinear optical materials and their synthesis, can solve problems such as unfavorable applications and low thermal stability

Inactive Publication Date: 2012-07-04
FUJIAN INST OF RES ON THE STRUCTURE OF MATTER CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Most of the reported boorgermanates are synthesized under hydrothermal conditions, and their structures often contain water or organic templates, and their thermal stability is not high, which is not conducive to practical applications.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

example 1

[0008] Example 1: H 3 BO 3 (0.124g, 2mmol), GeO 2 (0.105g, 1mmol) and Rb 2 CO 3 (0.462g, 2mmol) After being evenly ground, put it in a platinum crucible for compaction, and place it in a muffle furnace. The temperature rise rate of 1°C per minute is increased to 725°C for 4 days, and then the temperature is reduced to 525 at 1°C per hour. ℃, turn off the muffle furnace heating program, let it cool to room temperature naturally, take it out and scrape out the sample with external force, you can get colorless and transparent block crystals.

example 2

[0009] Example 2: H 3 BO 3 (0.372g, 6mmol), GeO 2 (0.315g, 3mmol) and Rb 2 CO 3 (0.924g, 4mmol) After being evenly ground, put it in a platinum crucible for compaction, place it in a muffle furnace, react at 650℃ for 6 days, take it out and re-grind and react at 680℃ for 15 days, then turn off the muffle Furnace heating program, let it cool down to room temperature naturally, white powder with 100% yield can be obtained. .

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PUM

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Abstract

The invention discloses a nonlinear optical crystal Rb4Ge3B6O17 and belongs to a nonlinear optical material and synthesis for the nonlinear optical material. The chemical formula of the crystal is Rb4Ge3B6O17, the molecular weight is 896.51, the crystal belongs to a monoclinic system, a space group is Cc, and unit cell parameters are that alpha is equal to 90 degrees, beta is equal to 103.723 (5) degrees, gama is equal to 90 degrees and Z is equal to 4. The crystal is prepared by a high-temperature solid-phase method. The Rb4Ge3B6O17 has excellent nonlinear optical performance, and a second harmonic generation (SHG) coefficient of crystal powder is 1.3 times that of potassium dihydrogen phosphate (KDP).

Description

Technical field [0001] The invention belongs to nonlinear optical materials and their synthesis. Background technique [0002] Non-linear optical crystal, with frequency doubling effect (SHG), in laser frequency conversion, electro-optic modulation, photorefraction [0003] High-tech fields such as information processing have important application value. Non-linear optical materials are used in modern science and technology, especially in a number of military and civilian high-tech fields, such as submarine deep-water communications, laser blinding weapons, ocean fish detection, CD recording, color laser printing, laser projection television, optical computing and Optical fiber communication has a series of important applications. The nonlinear optical crystals currently in practical use include LiB 3 O 5 (LBO), β-BaB 2 O 4 (BBO), KH 2 PO 4 (KDP), KTiOPO 4 (KTP), LiNbO 3 (LNO) and BaTiO 3 (BTO) etc. Generally speaking, the design of nonlinear optical materials adopts: Planar BO ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C30B29/22C30B1/10
Inventor 毛江高张建汉
Owner FUJIAN INST OF RES ON THE STRUCTURE OF MATTER CHINESE ACAD OF SCI
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