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Neodymium-doped lanthanum barium lithium molybdate laser crystal and preparation method and application thereof

A laser crystal, lithium neodymium molybdate technology, applied in crystal growth, chemical instruments and methods, single crystal growth, etc., can solve the problems of narrow absorption spectrum, unsuitable for LD pumping, etc.

Inactive Publication Date: 2010-03-24
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

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Embodiment 1

[0017] Example 1: Molten salt growth doping concentration is 5.0 at.% Nd 3+ Nd 3+ : Li 3 Ba 2 La 3 (MoO 4 ) 8 laser crystals. The growth material is Li 3 Ba 2 La 3 (MoO 4 ) 8 : Li 2 MoO 4 =1:4 (molar ratio), doped with 5at% Nd 3+ ion. Using the molten salt top seed method, in a φ60×50mm platinum crucible, the growth temperature is between 750 and 900°C, with a cooling rate of 1°C / day and a crystal rotation speed of 10 rpm, a crystal with a size of 30 ×30×10mm 3 of high quality Nd 3+ : Li 3 Ba 2 La 3 (MoO 4 ) 8 crystals. The ICP (plasma emission spectrometry) analysis shows that Nd in the crystal 3+ The ion content is 4.4at%.

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Abstract

The invention relates to a neodymium-doped lanthanum barium lithium molybdate laser crystal and a preparation method and application thereof. The high-quality Nd<3+>:Li3Ba2La3(MoO4)8 crystal with large size is grown by using 60-80at% Li2MoO4 as a fluxing agent under the conditions that the cooling rate is 0.5-2 DEG C / day and the rotating speed is 5-30r / min. The crystal belongs to the monoclinic system and has C2 / c space group structure. The crystal is a novel laser crystal and can generate and output lasers with wavelength being about 1.06mu m. The solid lasers prepared by the crystal can be applied to such fields as spectroscopy, biomedicine, military affairs and the like.

Description

technical field [0001] The Nd-doped lithium barium lanthanum molybdate laser crystal and its preparation method and application relate to the field of artificial crystal and crystal growth in the technical field of optoelectronic functional materials, 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, hun...

Claims

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Application Information

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IPC IPC(8): C30B29/32C30B9/00H01S3/16
Inventor 王国富宋明君张莉珍
Owner FUJIAN INST OF RES ON THE STRUCTURE OF MATTER CHINESE ACAD OF SCI
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