Ca, Mg, Zr, Gd and Ga garnet doped with Sm and melt method crystal growth method thereof
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A calcium-magnesium-zirconium-gadolinium-gallium, crystal growth technology, applied in crystal growth, single crystal growth, single crystal growth, etc., can solve problems such as unfavorable laser output, and achieve excellent performance and uniform optical quality
Inactive Publication Date: 2010-03-17
ANHUI INST OF OPTICS & FINE MECHANICS - CHINESE ACAD OF SCI
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Its disadvantage is that when the concentration of doped Sm is too high, the phenomenon of cross relaxation is more obvious, which is not conducive to the realization of laser output.
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[0008] Sm doped calcium magnesium zirconium gadolinium gallium garnet, its molecular formula is Sm z :Gd 3-x-z Ca x Ga 5-x-2y Mg y Zr x+y o 12 , wherein, 0
[0010] (1), Sm z :Gd 3-x-z Ca x Ga 5-x-2y Mg y Zr x+y o 12 Ingredients for crystal growth raw materials:
[0011] Using Sm 2 o 3 、Gd 2 o 3 , Ga 2 o 3 , CaO, MgO, ZrO 2或 As a raw material, the molar ratio of the following chemical formula is used for batching and fully mixed evenly:
[0012]
[0013]
[0014] Raw material Sm used in ingredients 2 o 3 、Gd 2 o 3 , Ga 2 o 3 , CaO, MgO, ZrO 2 Use other compounds of corresponding Sm, Gd, Ga, Ca, Mg, Zr to replace, but it needs to be able to form Sm through chemical reaction z :Gd 3-x-z Ca x Ga 5-x-2y Mg y Zr x+y o 12 Compound this condition;
[0015] Considering the segregation effect during ...
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Abstract
The invention discloses a Ca, Mg, Zr, Gd and Ga garnet doped with Sm and a melt method crystal growth method thereof, the molecular formula thereof is Smz: Gd(3-x-z)CaxGa(5-x-2y)MgyZr(x+y)O12 (0<x<3,0<y<2.5, 0<z<3, 0<x+2y<5, 0<x+z<3), and the method comprises the following steps: the well-prepared raw materials are mixed fully, pressed and shaped, calcined in high temperature to obtain the starting raw material for crystal growth; the starting raw material is placed into a pot, heated and fully melt to obtain the initial melt of the melt method crystal growth, and is subjected to directionalor nondirectional growth on crystals by a melt method such as a traditional pulling method, a Bridgman-Stockbarge method, a flux growth method and the like to obtain solid laser working substances ofblue light pumping. By the invention, laser crystal with large size, even optical quality and fine performance can be obtained, which also can be used as solid laser working substances of blue light pumping and has the possibility of being used in fields such as medical diagnosis, material treatment, high density information reading and writing, monitoring and controlling, large screen color display, high definition color televisions and the like.
Description
technical field [0001] The invention relates to the field of laser materials and crystal growth, in particular to Sm-doped calcium magnesium zirconium gadolinium gallium garnet and its crystal growth method by melt method. Background technique [0002] Searching for new laser materials with excellent performance in the red band is an important topic in the fields of solid-state laser technology, material processing, high-density information reading and writing, monitoring and control, laser medicine, and color display. In laser display, red light is one of the three primary colors of red, green and blue. Among them, green laser technology is the most mature. Red light and blue light are still the focus of research. In terms of medical treatment, red light has a strong ability to penetrate tissues and can reach deep into tissues. Red light can treat chronic inflammation, endocrine disorders, nerve dysfunction and other diseases. In addition, red light can be used as a pum...
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Patent Type & Authority Applications(China)
IPC IPC(8): C30B29/28C30B15/00C30B11/00
Inventor 张庆礼殷绍唐周文龙刘文鹏谷长江李为民秦青海孙敦陆万松明
Owner ANHUI INST OF OPTICS & FINE MECHANICS - CHINESE ACAD OF SCI
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