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second order nonlinear optical crystal k 2 sbf 2 cl 3 And its preparation method and application

A crystal and inorganic crystal technology, applied in the field of material science, can solve the problems of not meeting the practical requirements of second-order nonlinear optical crystal materials, not easy to grow optical quality, and harsh synthesis conditions, achieving air stability, mild experimental conditions, The effect of high utilization of raw materials

Inactive Publication Date: 2017-12-26
WUHAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The reason is that the existing infrared second-order nonlinear optical crystal materials, such as AgGaS 2 , AgGaSe 2 and ZnGeP 2 Although such crystals have a large second-order nonlinear optical coefficient and a wide transmission range in the infrared region, the synthesis conditions are harsh, and it is not easy to grow large single crystals with high optical quality, especially with a low damage threshold. Therefore, it cannot meet the practical requirements of second-order nonlinear optical crystal materials.

Method used

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  • second order nonlinear optical crystal k <sub>2</sub> sbf <sub>2</sub> cl <sub>3</sub> And its preparation method and application
  • second order nonlinear optical crystal k <sub>2</sub> sbf <sub>2</sub> cl <sub>3</sub> And its preparation method and application
  • second order nonlinear optical crystal k <sub>2</sub> sbf <sub>2</sub> cl <sub>3</sub> And its preparation method and application

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Experimental program
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Effect test

Embodiment 1

[0029] 20mmol KF and 10mmol SbCl 3 Add 23mL of hydrothermal reaction kettle, then add 2mL of hydrochloric acid and distilled water mixed solution, in which HCl: H 2 O=1:1, put the closed hydrothermal reaction kettle into the muffle furnace, heat it to 180°C for 3 hours, react at constant temperature for 1 day, close the muffle furnace, and cool it to room temperature naturally; after the reaction, rinse with ethanol and dry That is, colorless crystal K is obtained 2 SbF 2 Cl 3 .

Embodiment 2

[0031] 20mmol KF and 10mmol SbCl 3 Add 23mL of hydrothermal reaction kettle, then add 3mL of hydrochloric acid and distilled water mixed solution, in which HCl: H 2 O=2:1, put the closed hydrothermal reaction kettle into the muffle furnace, heat it to 180°C for 3 hours, react at constant temperature for 2 days, and slowly cool it to room temperature at a cooling rate of 6°C / h; after the reaction, use Rinse with ethanol and dry to obtain colorless crystal K 2 SbF 2 Cl 3 .

Embodiment 3

[0033] 10mmol KF and 5mmol SbCl 3 Add 23mL of hydrothermal reaction kettle, then add 2mL of hydrochloric acid and distilled water mixed solution, in which HCl: H 2 O=1:1, put the airtight hydrothermal reaction kettle into the muffle furnace, heat it to 180°C for 3 hours, react at constant temperature for 1 day, and slowly cool it to room temperature at a cooling rate of 2°C / h; after the reaction, use Rinse with ethanol and dry to obtain colorless crystal K 2 SbF 2 Cl 3 .

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Abstract

The invention discloses an inorganic crystal compound K2SbF2C13 and a preparation method and application as second-order non-linear optical crystal material thereof. The crystal space group of the K2SbF2C13 is P212121, and the cell parameter of the K2SbF2C13 is alpha=beta=gamma=90 degrees, Z=4, the optical band gap of the K2SbF2C is 4.01 eV, the powder frequency-doubled effect of the K2SbF2C is four times that of mono potassium phosphate, and the infrared transmitting range of the powder reaches to 14 micrometers. According to the inorganic crystal compound K2SbF2C13 and the preparation method and the application thereof, KF and SbC13 are used as starting reactants, and the inorganic crystal compound K2SbF2C13 is prepared through a hydrothermal method. The inorganic crystal compound K2SbF2C13 has a strong and phase-matching second-order non-linear optical effect, a large transmitting window is existed in a visible area and a mid-infrared light area, and a comparatively large band gap and heat stability are achieved; the synthetic method is convenient to operate, high in usage rate of raw materials, mild in reaction condition and high in product purity, and the crystal material can be widely applied to to the optical field.

Description

technical field [0001] The invention relates to a second-order nonlinear optical crystal K 2 SbF 2 Cl 3 The preparation method and application thereof belong to the field of inorganic chemistry, and also belong to the field of material science and optics. Background technique [0002] Nonlinear optical effects originate from the interaction between laser and medium. When the laser propagates in a medium with non-zero second-order polarizability, nonlinear optical effects such as frequency doubling, sum frequency, difference frequency, and optical parametric amplification will occur. Using the second-order nonlinear optical effect of crystals, nonlinear optical devices such as second-harmonic generators, frequency converters, and optical parametric oscillators can be made, which are of great importance in many fields such as laser technology, atmospheric monitoring, and national defense. application value. Inorganic nonlinear optical materials play a dominant role in the...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C30B29/12C30B7/10
Inventor 黄印陈兴国秦金贵
Owner WUHAN UNIV