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Non-linear optical infrared crystal and its preparing process

A technology of nonlinear optics and crystal materials, applied in the growth of polycrystalline materials, chemical instruments and methods, crystal growth, etc., can solve problems such as laser damage and small bandwidth of semiconductor materials

Inactive Publication Date: 2002-12-04
WUHAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The semiconductor material has a small bandwidth, although the nonlinear optical coefficient is large, it is also easy to cause laser damage

Method used

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  • Non-linear optical infrared crystal and its preparing process
  • Non-linear optical infrared crystal and its preparing process
  • Non-linear optical infrared crystal and its preparing process

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] The technical scheme of the present invention will be further described below in conjunction with specific examples of implementation: Embodiment 1: RbCdI 3 ·H 2 Preparation of O

[0019] 0.84g (4mmol) RbI and 1.46g (4mmol) CdI 2 Mix in about 3ml of double-distilled water, stir at 100°C for 3 hours, cool to room temperature naturally, and gradually precipitate a large number of colorless needle-like crystals. Suction filtration, and dry the product under an infrared lamp. Example 2: CsCdI 3 0.25H 2 Preparation of O

Embodiment 2

[0020] 0.78g (3mmol) CsI and 1.11g (3mmol) CdI 2 Mix in about 2ml of double-distilled water, stir at 100°C for 3 hours, cool to room temperature naturally, and gradually precipitate a large amount of white crystal precipitates. Suction filtration, and dry the product under an infrared lamp. Example 3: RbCdI 3 ·H 2 O single crystal growth

Embodiment 3

[0021] RbCdI 3 ·H 2 The aqueous solution of O was placed in a constant temperature box at 30°C, and a small transparent seed crystal without obvious defects was added. After 1 to 2 months, it grows into a larger-sized rod-shaped transparent single crystal. Example 4: CsCdI 3 0.25H 2 O single crystal growth

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Abstract

An optical infrared non-linear crytical material, ACdI3.xH2O where A=Rb and x=1, or A=Cs and X=0.25, and its preparing process are disclosed. The said inorganic material features that very great light transmission window in visual light and infrared region, greater second-order non-linear coefficient, and large size of monocrystal. It can be used for optical second-order non-linear material.

Description

technical field [0001] The invention relates to an infrared inorganic nonlinear optical crystal material and a preparation method thereof, and belongs to the field of inorganic chemistry and also belongs to the field of optical materials. 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 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. Inorganic nonlinear optical materials play a leading role in the practical research of second-order nonlinear optical materials. According to the light transmission band and scope of application, inorganic nonlinear optical cryst...

Claims

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Application Information

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IPC IPC(8): C30B7/00C30B29/12
CPCC30B7/00
Inventor 任鹏秦金贵刘涛陈创天吴以成
Owner WUHAN UNIV
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