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Inorganic infrared nonlinear optical crystal material and method for making same and uses

A technology of nonlinear optics and crystal materials, applied in the fields of nonlinear optics, optics, instruments, etc., can solve the problems that the research of new frequency conversion crystals needs to be strengthened, and achieve the effect of large size and good quality

Inactive Publication Date: 2008-07-09
WUHAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the book "Nonlinear Optical Crystal Materials Science" published by Science Press in 2003, it was clearly stated that "in the entire spectral band of nonlinear optics, nonlinear optical crystals in the infrared band are a weak link. Therefore, in this band Research on new frequency conversion crystals needs to be strengthened”

Method used

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  • Inorganic infrared nonlinear optical crystal material and method for making same and uses
  • Inorganic infrared nonlinear optical crystal material and method for making same and uses
  • Inorganic infrared nonlinear optical crystal material and method for making same and uses

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Example 1: CsHg 1.5 I 4 preparation of

[0026] 1.0392 g (4 mmol) of CsI and 2.7264 g (6 mmol) of HgI 2 At the same time, it was dissolved in 10 ml of acetone, stirred for about half an hour to obtain a yellow clear solution, filtered, and the filtrate was concentrated and then recrystallized to obtain hexagonal prism-shaped yellow transparent crystals.

Embodiment 2

[0027] Example 2: CsHg 1.5 I 4 preparation of

[0028] CsI ​​and HgI 2 At the same time, dissolve in 10 ml of organic solvents such as ethanol, acetonitrile, tetrahydrofuran or ethyl acetate, stir for 10-60 minutes to obtain a yellow clear solution, filter, concentrate the filtrate and recrystallize to obtain hexagonal prism-shaped yellow transparent crystals. where CsI and HgI 2 The molar ratio of the amount used is 2:3.

Embodiment 3

[0029] Example 3: CsHg 1.5 I 4 crystal growth

[0030] CsI ​​and HgI 2 Dissolve in 10 ml of acetone at the same time, stir for about half an hour to obtain a yellow clear solution, filter, place the filtrate in a constant temperature tank at 20-50 degrees Celsius and evaporate for 5-30 days, and grow into a larger-sized hexagonal prism-shaped yellow transparent single crystal That is the desired crystal material. where CsI and HgI 2 The molar ratio of the amount used is 2:3.

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Abstract

The invention discloses an infrared second-order nonlinear optical crystal material CsHg1.5I4 and a preparation method and application thereof. The crystal space group of the optical crystal material is Cm. The optical crystal material has the advantages of large phase-matchable second-order nonlinear optical coefficients, large light-transmitting widows in a visible region and an infrared region, high thermal stability, simple operation of a synthesis method, short reaction time, moderate experimental conditions and high purity of products; in addition, high-quality and big-size crystals can be produced through a simple method of solvent volatilization; thus the optical crystal material can be widely applied in the optical field.

Description

technical field [0001] The invention relates to an inorganic nonlinear optical crystal material, which belongs to the field of inorganic chemistry, and also belongs 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. In many fields, such as laser technology, atmospheric monitoring, national defense and military, etc., All have important application value. Inorganic nonlinear optical materials play a dominant role in the practical research of second-order nonlinea...

Claims

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Application Information

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IPC IPC(8): G02F1/355
Inventor 张刚刘涛朱天翔秦金贵傅佩珍吴以成陈创天
Owner WUHAN UNIV
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