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Infrared Nonlinear Optical Crystal la 3 sb 0.33 sis 7 and its preparation method

A nonlinear optics, crystal technology, applied in nonlinear optics, chemical instruments and methods, optics, etc.

Active Publication Date: 2017-08-15
ZUNYI NORMAL COLLEGE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, there are few studies in this area at present, so it is a very meaningful and challenging work to carry out the exploration of antimony chalcogenides with infrared nonlinear optical properties. On this basis, the inventor has successfully achieved rare earth chalcogenides with nonlinear optical properties

Method used

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  • Infrared Nonlinear Optical Crystal la <sub>3</sub> sb <sub>0.33</sub> sis <sub>7</sub> and its preparation method
  • Infrared Nonlinear Optical Crystal la <sub>3</sub> sb <sub>0.33</sub> sis <sub>7</sub> and its preparation method

Examples

Experimental program
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Embodiment 6

[0038] The volume fraction of step (1) in the embodiment three is that the nitrogen of 99.99% is replaced by the argon gas that the volume fraction is 99.99%, and the water content and the oxygen content in the water jacket box are all controlled to be 0.08ppm; The embodiment three The degree of vacuum in step (3) is 10 -2 Pa is replaced by 0.8*10 -2 Pa, and the hydrogen-oxygen welding machine is replaced by an acetylene welding machine; the heating rate of the step (4) tubular resistance furnace in embodiment three is replaced by 28 °C / h, and the tubular resistance furnace is heated to 950 ℃ is replaced by heating up to 980 ℃, and the total time of the reaction is 96h replaced by 90h; the cooling rate in step (5) in embodiment three is replaced by 4 ℃ / h, and the rest are the same as in embodiment three Keep consistent, can also get the nonlinear optical crystal La with uniform color and uniform particle size 3 Sb 0.33 SiS 7 powder.

Embodiment 7

[0040] The volume fraction of step (1) in the embodiment three is that the nitrogen of 99.99% is replaced by the helium of the volume fraction of 99.99%, and the water content and the oxygen content in the water jacket box are all controlled to 0.06ppm; The degree of vacuum in step (3) is 10 -2 Pa is replaced by 0.7*10 -2 Pa, and the hydrogen-oxygen welding machine is replaced by an acetylene welding machine; the heating rate of the step (4) tubular resistance furnace in embodiment three is replaced by 32 °C / h, and the tubular resistance furnace is heated to 950 ℃ is replaced by heating up to 920 ℃, and the total time of the reaction is 96h replaced by 100h; the cooling rate in step (5) in embodiment three is replaced by 6 ℃ / h, and the rest are the same as in embodiment three Keep consistent, can also get the nonlinear optical crystal La with uniform color and uniform particle size 3 Sb 0.33 SiS 7 powder.

[0041] In the specific implementation process of Examples 1-7, la...

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Abstract

The invention discloses an infrared nonlinear optical crystal La3Sb0.33SiS7 and a preparation method thereof. The crystal is a non-heart structure sulfide, the crystal system is a hexagonal system, and the space group is P63. The preparation method comprises the solid-phase reaction of elemental lanthanum, elemental antimony, elemental silicon and elemental sulfur under vacuum. Under the irradiation of laser with the wave length of 2.05 [mu]m, the nonlinear effect of the infrared nonlinear optical crystal La3Sb0.33SiS7 corresponds to that of commercial nonlinear optical material potassium titanium phosphate (KTP).

Description

technical field [0001] The invention belongs to the field of nonlinear optical materials, in particular to an infrared nonlinear optical crystal La 3 Sb 0.33 SiS 7 and its preparation method. Background technique [0002] When the light propagates through the crystal, it will cause the electric polarization of the crystal. When the light intensity is small, there is a linear relationship between the electric polarization intensity of the crystal and the optical frequency electric field; when the light intensity is large, such as laser, the electric polarization intensity of the crystal There is a nonlinear relationship with the optical frequency electric field. This optical effect related to light intensity is called nonlinear optical effect, and the crystal with the nonlinear optical effect is called nonlinear optical crystal. [0003] When strongly coherent light, such as laser, acts on a nonlinear optical crystal, the nonlinear phenomenon generated by the interaction b...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02F1/355C30B29/46C30B9/00
CPCC30B9/00C30B29/46G02F1/3551
Inventor 赵华俊
Owner ZUNYI NORMAL COLLEGE
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