Fluoro mixed metal salt nonlinear optical crystal material as well as preparation and application thereof
A technology of nonlinear optics and mixed metals, applied in nonlinear optics, polycrystalline material growth, optics, etc., can solve the problem of lack of infrared nonlinear optical crystal materials, achieve wide transmission range, high laser damage threshold, good Effects of Nonlinear Optical Properties
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Embodiment 1
[0035] Mix the barium source, molybdenum source, X source, fluorine source and water in a certain proportion to form the initial mixed raw material, seal it in a hydrothermal reaction kettle with a polytetrafluoroethylene liner, raise the temperature to the crystallization temperature, and keep the temperature for a period of time , the temperature of the reaction system is slowly lowered to room temperature at a certain rate, filtered and washed, and the target crystal can be obtained.
[0036] Table 1 shows the relationship between the type and proportion of each component in the initial mixed raw material, crystallization temperature, crystallization time and sample number.
[0037] Table 1 Correspondence between samples, raw materials and synthesis conditions
[0038]
[0039] Crystal structure analysis of 1#~2# samples:
[0040] The structures of samples 1# to 2# were analyzed by single crystal X-ray diffraction and powder X-ray diffraction.
[0041] The single cryst...
Embodiment 2
[0059] Fluorinated mixed metal salt nonlinear optical crystal material, the chemical formula of the crystal material is Ba(MoO 2 F) 2 (XO 3 ) 2 , belongs to the orthorhombic crystal system, and the space group is Aba2; among them, X is Se, and the chemical formula of the crystal material is Ba(MoO 2 F) 2 (SeO 3 ) 2 .
[0060] Ba(MoO 2 F) 2 (SeO 3 ) 2 The cell parameters of are: α=β=γ=90°, Z=4, the unit cell volume is:
[0061] The preparation method of the optical crystal material comprises the following steps:
[0062] (1) Mix barium source, molybdenum source, X source, fluorine source and water to form initial mixed raw materials;
[0063] (2) Crystallize the initial mixed raw materials under hydrothermal conditions to obtain the fluorinated mixed metal salt nonlinear optical crystal material.
[0064] Wherein, in step (1), the barium source is barium fluoride, the molybdenum source is molybdenum trioxide, and the X source is SeO 2 , the fluorine source i...
Embodiment 3
[0068] Fluorinated mixed metal salt nonlinear optical crystal material, the chemical formula of the crystal material is Ba(MoO 2 F) 2 (XO 3 ) 2 , belongs to the orthorhombic crystal system, and the space group is Aba2; among them, X is Te, and the chemical formula of the crystal material is Ba(MoO 2 F) 2 (TeO 3 ) 2 .
[0069] Ba(MoO 2 F) 2 (TeO 3 ) 2 The cell parameters of are: α=β=γ=90°, Z=4, the unit cell volume is:
[0070] The preparation method of the optical crystal material comprises the following steps:
[0071] (1) Mix barium source, molybdenum source, X source, fluorine source and water to form initial mixed raw materials;
[0072] (2) Crystallize the initial mixed raw materials under hydrothermal conditions to obtain the fluorinated mixed metal salt nonlinear optical crystal material.
[0073] Wherein, in step (1), the barium source is barium carbonate, the molybdenum source is molybdenum trichloride, and the X source is TeO 2 , the source of fluor...
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