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Infrared nonlinear optical crystal AZn4In5Se12 and its preparation method and use

An azn4in5se12, crystal technology, applied in the field of inorganic nonlinear optical materials, can solve the problems of two-photon absorption, low laser damage threshold, etc., and achieve the effect of strong frequency doubling response, high laser damage threshold, and excellent second-order nonlinear optical properties.

Inactive Publication Date: 2017-05-31
FUJIAN INST OF RES ON THE STRUCTURE OF MATTER CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Nonlinear optical crystal materials in the infrared band are mainly ABC 2 Type chalcopyrite structure semiconductor materials, typical examples such as ZnGeP 2 , AgGaS 2 , AgGaSe 2 etc. These compounds have large nonlinear optical coefficients and wide mid-to-far infrared transmittance, but they also have serious shortcomings such as low laser damage threshold and two-photon absorption, which limit their application.

Method used

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  • Infrared nonlinear optical crystal AZn4In5Se12 and its preparation method and use
  • Infrared nonlinear optical crystal AZn4In5Se12 and its preparation method and use
  • Infrared nonlinear optical crystal AZn4In5Se12 and its preparation method and use

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Embodiment 1

[0027] ABr, metal Zn, metal In and elemental Se are uniformly mixed according to a certain ratio to obtain raw materials. Put the raw material into the quartz crucible, place the quartz crucible with the raw material in the quartz reaction tube, and vacuum to 10 -3 Pa and use a hydrogen-oxygen flame to melt and seal the quartz reaction tube. Put the quartz reaction tube into a tube furnace with a temperature controller, heat it to the solid melting temperature, and react for a period of time. Then the temperature was programmatically lowered to 300°C at a rate of no more than 5°C / hour, then the heating was stopped, and the product was naturally cooled to room temperature, and the product was washed with deionized water and dried with ethanol to obtain an infrared nonlinear optical crystal.

[0028] The sample number, raw material ratio, solid melting temperature and reaction time are shown in Table 1.

[0029] Table 1

[0030]

[0031] Structural Characterization of Samp...

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Abstract

The invention relates to an optical crystal AZn4In5Se12 and its preparation method and use as an infrared non-linear optical material, wherein A represents Rb or Cs. The optical crystal has excellent second-order nonlinear optical properties and a wide range of light transmission, has strong infrared frequency doubling response and a high laser damage threshold, has the powder frequency multiplication intensity which is 3.5-4 times that of a commercial material AgGaS2 and the laser damage threshold which is 13 times that of AgGaS2, and can be used in mid-infrared detectors and lasers.

Description

technical field [0001] The invention relates to the technical field of inorganic nonlinear optical materials, in particular to optical crystal AZn 4 In 5 Se 12 And its preparation method and use. Background technique [0002] Nonlinear optical crystals are a very important class of functional materials, which are widely used in laser communication, optical information processing, integrated circuits and military technology. Generally speaking, an ideal nonlinear optical crystal must meet the following conditions: (1) large nonlinear optical coefficient; (2) high laser damage threshold; (3) wide optical transmission range; (4) appropriate size (5) Good physical and chemical properties and mechanical properties. Nonlinear optical crystal materials in the infrared band are mainly ABC 2 Type chalcopyrite structure semiconductor materials, typical examples such as ZnGeP 2 , AgGaS 2 , AgGaSe 2 etc. These compounds have large nonlinear optical coefficients and wide mid- and...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C30B29/46C30B1/10G02F1/355
CPCC30B1/10C30B29/46G02F1/3551
Inventor 吴立明林华陈玲
Owner FUJIAN INST OF RES ON THE STRUCTURE OF MATTER CHINESE ACAD OF SCI
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