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Neodymium doped LiGd(MoO4)2 laser crystal, its preparation method and use

A technology of lithium neodymium gadolinium molybdate and laser crystal, applied in the field of laser crystal materials, can solve the problems of unsuitable LD pumping, narrow absorption spectrum, etc.

Inactive Publication Date: 2006-09-27
FUJIAN INST OF RES ON THE STRUCTURE OF MATTER CHINESE ACAD OF SCI
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  • Summary
  • Abstract
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  • Application Information

AI Technical Summary

Problems solved by technology

However, it has the disadvantage of narrow absorption spectrum and is not suitable for pumping by LD, and LD pumping will be the development direction of laser pumping sources in the future.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0012] Example 1: The doping concentration is 1.0 at.% Nd grown by pulling method 3+ Nd 3+ :LiGd(MoO 4 ) 2 laser crystals.

[0013] Li will be accurately weighed according to the ratio 2 CO 3 、Gd 2 o 3 、MoO 3 、Nd 2 o 3 Mix and grind evenly, after tableting, put in φ60×40mm 3 In a platinum crucible, the solid-state reaction was carried out at 700°C for 24 hours in a muffle furnace; after taking it out, the tablet was reground and then heated to 800°C for 48 hours. Put the synthesized above samples into a platinum crucible, and use the pulling method to grow a The size is 25×20×20mm 3 of high quality Nd 3+ 1.0 at.% Nd 3+ :LiGd(MoO 4 ) 2 crystals.

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Abstract

Disclosed is neodymium-doped gadolinium lithium molybdate laser crystal, its preparation process and use thereof, wherein the crystal is prepared through a Czochralski method conducted at 1035 deg C at a crystal rotational speed of 20-55 rpm, the obtained high quality large scale Nd3+:LiGd(MoO4)2 crystal can be applied into the fields of optical spectroscopy, biological medicine and military purpose.

Description

technical field [0001] The invention relates to the field of artificial crystals and their growth, in particular to a laser crystal material used as a working substance in a solid-state laser. 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 1960, hundreds of laser crystals have been discovered so far, but due to various reasons, there are only a dozen kinds of laser crystals that can really be used i...

Claims

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Application Information

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IPC IPC(8): C30B29/32H01S3/16
Inventor 王国富黄新阳林州斌胡祖树
Owner FUJIAN INST OF RES ON THE STRUCTURE OF MATTER CHINESE ACAD OF SCI
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