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Nonlinear optical crystal caesium borogermanate

A technology of nonlinear optics and cesium borogermanate, which is applied in the field of nonlinear optical materials and their synthesis, and can solve the problems of no literature report on the content of the invention, etc.

Inactive Publication Date: 2009-11-25
FUJIAN INST OF RES ON THE STRUCTURE OF MATTER CHINESE ACAD OF SCI
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[0007] Example: H 3 BO 3 (6 mmol), GeO 2 (2mmol) with Cs 2 CO 3 (1 mmol), ground and mixed evenly, reacted at 650°C for 2 days, and lowered to 200°C at 10°C per hour to obtain polycrystals with uniform particle size.

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Abstract

The invention relates to nonlinear optical crystal caesium borogermanate which belongs to a nonlinear optical material and synthesis thereof. The crystal has a chemical formula of CsGeB3O7 and the molecular weight of 249.93, belongs to a rhombic system and has a space group of Pna21 and unit cell parameters that a is 9.542(3)*, b is 9.823(3)*, c is 7.009(2)*, V is 6557.0(3)*3, and Z is 4. The caesium borogermanate (CsGeB3O7) is prepared by a high-temperature solid phase method and has good nonlinear optical performance, and the SHG coefficient of e caesium borogermanate powder is 1.5 times of that of KDP.

Description

technical field [0001] The invention belongs to nonlinear optical material and its synthesis. Background technique [0002] Nonlinear optical crystals, with frequency doubling effect (SHG), have important application value in high-tech fields such as laser frequency conversion, electro-optical modulation, and photorefractive information processing. Nonlinear optical materials are used in modern science and technology, especially in several military and civilian high-tech fields, such as submarine deep-water communication, laser blinding weapons, marine fish detection, optical disc recording, color laser printing, laser projection TV, optical computing and Optical fiber communication, etc., have a series of important applications. The nonlinear optical crystals currently used in practice 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) and so on. Recent studies have shown that the combination of Se(IV) and...

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Application Information

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IPC IPC(8): G02F1/355
Inventor 毛江高孔芳
Owner FUJIAN INST OF RES ON THE STRUCTURE OF MATTER CHINESE ACAD OF SCI
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