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Non-linear optical crystal selenium borate

A nonlinear optics and borate sub-technology, applied in the field of nonlinear optical materials and their synthesis, can solve problems such as no literature reports

Inactive Publication Date: 2007-08-29
FUJIAN INST OF RES ON THE STRUCTURE OF MATTER CHINESE ACAD OF SCI
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  • Abstract
  • Description
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Problems solved by technology

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Method used

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Examples

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example 1

[0007] Example 1: B 2 o 3 (0.0835g, 1.2mol), SeO2 (0.2663g, 2.4mol) grinding, tableting, vacuum sealing, placed in a box-type resistance furnace, 150 ° C for 24 hours, then raise the temperature, and react at 350 ° C for five day, and finally lowered to 200°C per hour at 4°C, and a colorless and transparent block crystal with the longest edge length of more than 1 mm can be obtained.

example 2

[0008] Example 2: B 2 o 3 (0.0835g, 1.2mol), SeO 2 (0.2663g, 2.4mol) grinding, tableting, vacuum sealing, placed in a box-type resistance furnace, reacted at 320°C for 24 hours, and then lowered to 210°C at 5°C per hour to obtain a yield of 100 % of colorless blocky crystals.

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PUM

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Abstract

The invention is a nonlinear optical crystal Se2B2O7, belonging to nonlinear optical material and its synthesis. And its chemical formula: molecular weight of Se2B2O7, 291.54, belonging to orthogonal crystal system, space group, P212121, and unit cell parameters: a= 7.4815(6),b=7.8984(5),c=9.0478(7), alpha=90degree, beta=90degree, gamma=90degree, V=534.65(7)3, and Z=4. And it is prepared by high temperature solid phase process. And it has excellent nonlinear optical performance, and SHG coefficient of its powder is 2.2 times greater than that of KDP and equivalent to that of LBO.

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, CD 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 Te(IV) co...

Claims

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Application Information

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