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Ytterbium doped kalium-lanthanum molybdate laser crystal, producing method, and purpose

A technology of ytterbium-doped lanthanum potassium molybdate and ytterbium lanthanum potassium molybdate, applied in the field of laser crystal materials, can solve the problems of unsuitable LD pumping and narrow absorption spectrum

Inactive Publication Date: 2008-07-02
FUJIAN INST OF RES ON THE STRUCTURE OF MATTER CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • 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 0.5at.%Yb grown by pulling method 3+ KLa(MoO 4 ) 2 laser crystals.

[0013] K will be accurately weighed according to the ratio 2 CO 3 , La 2 o 3 、MoO 3 , Yb 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 above synthesized samples into a platinum crucible, and use the pulling method to grow a The size is φ20×35mm 3 high quality Yb 3+ 0.5 at.% Yb 3+ :KLa(MoO 4 ) 2 crystals.

Embodiment 2

[0014] Example 2: The doping concentration is 1.0at.%Yb grown by pulling method 3+ KLa(MoO 4 ) 2 laser crystals.

[0015] K will be accurately weighed according to the ratio 2 CO 3 , La 2 o 3 、MoO 3 , Yb 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 φ25×45mm 3 high quality Yb 3+ 1.0 at.% Yb 3+ :KLa(MoO 4 ) 2 crystals.

Embodiment 3

[0016] Example 3: The doping concentration is 4.0 at.% Yb grown by pulling method 3+ KLa(MoO 4 ) 2 laser crystals.

[0017] K will be accurately weighed according to the ratio 2 CO 3 , La 2 o 3 、MoO 3 , Yb 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 above synthesized samples into a platinum crucible, and use the pulling method to grow a The size is φ25×40mm 3 high quality Yb 3+ Yb with a content of 4.0 at.% 3+ :KLa(MoO 4 ) 2 crystals.

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PUM

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Abstract

A laser crystal mixed with the ytterbium doped lanthanum potassium molybdate and the preparation method as well as the use thereof relate to the field of the intraocular lens.At a temperature of about 1070 DEG C, the invention, at a crystal rotation speed of 5 to 20 rotations per minute and a pulling rate of 0.5 to 2mm per hour, grows the crystal of Yb<3>:KLa(MoO4)2 of high quality and larger dimension through the czochralski method. The crystal is a novel laser crystal, which can generate a laser output with a wavelength of about 1 Mum. A solid laser made from the crystal can be applied in the fields such as spectroscopy, biomedicine, military science and etc.

Description

technical field [0001] It relates to the field of artificial crystals and crystal growth in the technical field of optoelectronic functional materials, especially 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 ki...

Claims

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Application Information

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IPC IPC(8): H01S3/16H01S3/06G02B1/02C30B29/00C30B29/10C30B15/00
Inventor 王国富王国建龙西法林州斌张丽珍
Owner FUJIAN INST OF RES ON THE STRUCTURE OF MATTER CHINESE ACAD OF SCI
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