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Neodymium-doping lanthanum calcium vanadate laser crystal and its preparation method and use

A technology of neodymium calcium lanthanum vanadate and laser crystals, which is applied in crystal growth, chemical instruments and methods, single crystal growth, etc., can solve the problems of unsuitable LD pumping and narrow absorption spectrum, and achieve excellent optical performance and crystal The effect of hard texture and stable growth process

Inactive Publication Date: 2007-11-28
FUJIAN INST OF RES ON THE STRUCTURE OF MATTER CHINESE ACAD OF SCI
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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

[0012] Example: The doping concentration is 0.09at% Nd grown by pulling method 3+ : Ca 2 La 0.67 (VO 4 ) 2 laser crystals.

[0013] La will be accurately weighed according to the stoichiometric ratio 2 o 3 , CaCO 3 , V 2 o 5 and Nd 2 o 3 Mix and grind evenly, after tableting, put in φ80×100mm 3 In a corundum crucible, the solid-state reaction was carried out at 1000°C for 24 hours in a muffle furnace. After taking it out, it was ground and pressed into tablets, and the temperature was raised to 1200°C for 36 hours. Put the synthesized above samples into φ45×35mm 3 In the iridium gold crucible, put it into the pulling furnace, adopt the pulling method, in N 2 In the atmosphere, when the growth temperature is 1600°C, the crystal rotation speed is 15 rpm, and the pulling speed is 1.5 mm / hour, a crystal with a size of φ20×30mm is grown. 3 high quality Nd 3+ : Ca 2 La 0.67 (VO 4 ) 2 crystals.

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Abstract

The crystal of Nd3+:Ca2La0.67(VO4)2 and the preparation method are provided in the invention. It gets the crystal in the condition of 1600deg.C, 15-25 r / min and 1.0-2.0mm / h of pulling speed. The spectrum indicates that: the crystal has big emission transition section in the wavelength of 1064nm and 880nm to generate the 1064nm and 880nm laser. The 880nm laser can generate the blue laser of 435-460nm after nonlinear optical crystal frequency doubling.

Description

technical field [0001] The invention belongs to the field of artificial crystal and crystal growth in the technical field of optoelectronic materials, and in particular relates to a laser crystal material used as a working substance in a solid-state laser. Background technique [0002] 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 in practice. [0003] At present, the most widely used laser crystal is yttrium aluminum garnet (YAG) crystal doped with neodymium ions, which has good physical and ch...

Claims

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Application Information

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IPC IPC(8): C30B29/30C30B15/00H01S3/17
Inventor 王国富范俊梅林州斌张莉珍
Owner FUJIAN INST OF RES ON THE STRUCTURE OF MATTER CHINESE ACAD OF SCI
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