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Multifunctional caesium lanthanum molybdate crystal as well as preparation method and application thereof

A multi-functional technology of lanthanum cesium molybdate crystals and its preparation, which can solve problems that do not involve crystal Raman properties, do not consider the application value of Raman crystals and self-Raman laser crystals, etc. problem, to achieve the effect of narrow line width, high gain, and not easy to deliquescence

Active Publication Date: 2016-04-06
HUAINAN NORMAL UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The Chinese patent application number is 200510065443.X, and the application date is April 05, 2005. The name of the invention is: a laser crystal doped with neodymium lanthanum potassium molybdate. The Chinese patent application number is 200810071780.3, and the application date is September 16, 2008. The name of the invention is: neodymium-doped lanthanum cesium tungstate and its preparation method and use, and the chemical formula is KLa 1–x Nd x (MoO 4 ) 2 、CsLa 1–x Nd x (WO 4 ) 2 laser crystals, but none of them involved the Raman properties of the crystals, and did not consider the application value of Raman crystals and self-Raman laser crystals.

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  • Multifunctional caesium lanthanum molybdate crystal as well as preparation method and application thereof
  • Multifunctional caesium lanthanum molybdate crystal as well as preparation method and application thereof
  • Multifunctional caesium lanthanum molybdate crystal as well as preparation method and application thereof

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Embodiment 1

[0028] In conjunction with the accompanying drawings, the multifunctional cesium lanthanum molybdate crystal of the present embodiment, the chemical formula for preparing the crystal is CsLa(MoO 4 ) 2 , where the Nd doping concentration x=0, the crystal belongs to the tetragonal crystal system, optical uniaxial crystal. The multifunctional cesium lanthanum molybdate crystal of the present embodiment is grown by a flux method, with Cs 2 MoO 4 As a flux, the flux and CsLa(MoO 4 ) 2 The molar ratio is 2. According to the above metering ratio, accurately weigh 162.91g, 0.5mol of Cs 2 CO 3 (99.9%), 32.58 g, 0.1 mol of La 2 o 3 (99.99%), 115.15 g, 0.8 mol of MoO 3 (analytical pure) and grind and mix evenly, put into Φ60×50mm 3 In a platinum crucible, the temperature was raised to 1000°C to melt and kept at a constant temperature for 5 hours. After measuring the saturation point temperature (~850°C), the seed crystal was introduced, and then the cooling rate was maintained ...

Embodiment 2

[0032] In conjunction with the accompanying drawings, a multifunctional cesium lanthanum molybdate crystal of the present embodiment and its preparation method and application, the preparation chemical formula is CsLa 0.95 Nd 0.05 (MoO 4 ) 2 crystal, wherein the doping concentration of Nd x=0.05, the specific steps are: using Cs 2 MoO 4 As a flux, flux with CsLa 0.95 Nd 0.05 (MoO 4 ) 2 The molar ratio is 1. According to the above metering ratio, accurately weigh 97.75g, 0.3mol of Cs 2 CO 3 (99.9%), 30.95 g, 0.095 mol of La 2 o 3 (99.99%), 1.68g, 0.005mol of Nd 2 o 3 (99.99%), 86.36 g, 0.6 mol of MoO 3 (analytical pure) and grind and mix evenly, put into Φ60×50mm 3 In a platinum crucible, the temperature was raised to 1000°C to melt and kept at a constant temperature for 5 hours. After measuring the saturation point temperature (~950°C), the seed crystal was introduced. After that, the cooling rate was kept at 0.5°C / day, and the rotation speed was 5 revolutions / m...

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Abstract

The invention discloses a multifunctional caesium lanthanum molybdate crystal as well as a preparation method and an application thereof and belongs to the technical field of artificial crystals. The chemical formula of the caesium lanthanum molybdate crystal is CsLa(1-x)Ndx(MoO4)2, wherein the doping concentration of Nd is larger than or equal to 0 and smaller than or equal to 0.15. Cs2MoO4 is taken as a flux, the mole ratio of the flux to CsLa(1-x)Ndx(MoO4)2 is 0.2-3, and the high-quality CsLa(1-x)Ndx(MoO4)2 crystal with a larger size is obtained through growing with a flux method at the cooling speed of 0.5-3 DEG C per day and at the rotating speed of 5-30 revolutions per minute. The caesium lanthanum molybdate crystal can be taken as a laser crystal to generate laser, can also be taken as a Raman crystal to perform Raman frequency conversion on the laser and can further be taken as a self-Raman laser crystal with a composite function for manufacturing of integrated, small and multi-wavelength lasers. A solid laser prepared from the crystal can be used for multiple fields such as military, medical treatment, remote sensing, ocean exploration and the like.

Description

technical field [0001] The invention relates to the technical field of artificial crystals, in particular to a multifunctional cesium lanthanum molybdate crystal and its preparation method and application. 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. Neodymium ions have good spectral properties and are one of the most important active ions in the field of laser crystals. The most widely used laser crystal is yttrium aluminum garnet (YAG) crystal doped with neodymiu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C30B29/32C30B9/12H01S3/16H01S3/30G01N21/65
CPCC30B9/12C30B29/32G01N21/65G01N2021/655H01S3/1675H01S3/30
Inventor 赵旺周薇薇郑庆华王凤武徐迈赵星
Owner HUAINAN NORMAL UNIV
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