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Self-frequency-doubling laser neodymium-doped BaCaBO3F crystal

A technology of neodymium calcium fluoroborate and laser crystals, which is applied to lasers, crystal growth, laser parts, etc.

Inactive Publication Date: 2012-05-23
HUAINAN NORMAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

So far, with BaCaBO 3 F is the working substance, doped with Nd 3+ ions, so as to obtain the fundamental frequency and frequency doubled laser output, there is no relevant report

Method used

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Examples

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Embodiment 1

[0021] Example 1: The doping concentration is 2.0 at.% Nd grown by pulling method 3+ Nd 3+ :BaCaBO 3 F laser crystal.

[0022] Nd 3+ :BaCaBO 3F raw materials can be synthesized in two steps by solid phase sintering, the first step is to synthesize BaCa 2 (BO 3 ) 2 , the second step BaCa 2 (BO 3 ) 2 with BaF 2 The reaction affords the desired product. The reaction equation is as follows:

[0023] BaCO 3 +2(1-2x)CaCO 3 +xNa 2 CO 3 +xNd 2 o 3 +2H 3 BO 3

[0024] =BaCa 2(1-2x) Na 2x Nd 2x (BO 3 ) 2 +3H 2 O+3(1-x)CO 2 ↑

[0025] BaCa 2(1-2x) Na 2x Nd 2x (BO 3 ) 2 +BaF 2 = 2BaCa 1-2x Na x Nd x BO 3 f

[0026] According to the above equation, accurately weigh BaCO according to the ratio 3 , CaCO 3 , Na 2 CO 3 , H 3 BO 3 , BaF 2 and Nd 2 o 3 , mix and grind evenly, after tableting, put in Φ80×80mm 2 In a corundum crucible, the solid phase reaction was carried out at 650°C in a muffle furnace for 24 hours; after taking...

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PUM

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Abstract

The invention relates to the field of artificial lenses, in particular to a self-frequency-doubling laser neodymium-doped BaCaBO3F crystal. According to the invention, the Nd3<+>: BaCaBO3F crystal with high quality and larger size can grow by adopting a Czochralski method and at a temperature about 1096 DEG C, a crystal rotating speed of 10-30rpm and a pulling speed of 0.5-2.0mm / h. The Nd3<+>: BaCaBO3F crystal is a novel laser crystal and can generate laser output with wavelengths about 1068bn and 940nm. Meanwhile, because the crystal has a nonlinear optical effect, 534nm green light output and 470nm blue light output can be obtained by self-frequency-doubling. Lasers manufactured by utilizing the crystal disclosed by the invention can be used in the multiple fields, such as spectroscopy, biomedicine, military and the like.

Description

technical field [0001] The self-frequency doubling laser crystal doped with neodymium calcium barium fluoroborate relates to the field of artificial crystals and crystal growth in the technical field of optoelectronic functional materials, in particular to a self-frequency doubling laser crystal material used as a working material in solid-state lasers. Background technique [0002] Laser crystal is the working substance of solid-state laser. It refers to the luminescent material that uses crystal as the matrix to absorb pump light energy and convert it into laser output through discrete luminescent centers. The solid-state laser working substance is composed of matrix material and active ions. Its various physical and chemical properties are mainly determined by the matrix material, while its spectral characteristics and fluorescence lifetime are determined by the energy level structure of the active ion. Since the artificial ruby ​​pulse laser was successfully developed in...

Claims

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Application Information

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IPC IPC(8): C30B29/22C30B13/00H01S3/109
Inventor 赵旺周薇薇
Owner HUAINAN NORMAL UNIV
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