Neodymium-doped sodium-yttrium molybdenate laser crystal and its preparation method and use
A technology of sodium gadolinium molybdate neodymium and laser crystal, which is applied in crystal growth, chemical instruments and methods, single crystal growth, etc., and can solve problems such as unsuitable for LD pumping and narrow absorption spectrum
Inactive Publication Date: 2007-05-23
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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Experimental program
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Embodiment Construction
[0012] The doping concentration of pulling method growth is 1.0at.%Nd 3+ Nd 3+ :NaGd(MoO 4 ) 2 laser crystal.
[0013] Accurately weighed Na 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 Ф80×80mm 2 In a corundum crucible, the solid phase reaction was carried out at 650°C in a muffle furnace for 24 hours; after taking it out, the tablet was reground and then heated to 850°C for 24 hours. Put the synthesized above samples into Ф50×40mm 2 In the platinum crucible, using the pulling method, in the air atmosphere, the growth temperature is 1182 ℃, the crystal rotation speed is 30 rpm, and the pulling speed is 1 mm / hour, and the size is Ф21×42mm. 2 high quality Nd 3+ :NaGd(MoO 4 ) 2 crystals. The ICP test shows that Nd in the crystal 3+ The ion content is 0.90 at.%.
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Neodymium-doped molybdenic acid gadolinium natrium laser crystal and its preparation method, application relates to artificial lens field. The method contains growing high quality and large-scaled Nd3+: NaGd (MoO4)2crystal with crystal pulling method at about 1182DEG C, a rotary speed of 10-30rpm, a withdrawal rate of 0.5-1mm / h. The crystal can generate laser output with wave lengths of 1060nm and 900nm. Crystal laser made from the crystal can be used in spectroscopy, biomedicine and military affairs.
Description
technical field [0001] The invention relates to the technical field of artificial crystal growth. 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 in practice. [0003] At present, the most widely used laser crystal is yttrium aluminum garnet...
Claims
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IPC IPC(8): C30B29/32C30B15/00
Inventor 王国富李修芝林州斌张莉珍
Owner FUJIAN INST OF RES ON THE STRUCTURE OF MATTER CHINESE ACAD OF SCI