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Application of HgSO4 or CdSO4 as non-linear optical crystal material in optical field

A technology of nonlinear optics and crystal materials, applied in the direction of active medium materials, etc., can solve problems such as second-order nonlinear properties that no one has ever studied

Inactive Publication Date: 2006-02-22
WUHAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Although there are hundreds of literature reports on sulfate every year, so far no one has studied HgSO 4 and CdSO 4 The second-order nonlinearity of

Method used

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  • Application of HgSO4 or CdSO4 as non-linear optical crystal material in optical field
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  • Application of HgSO4 or CdSO4 as non-linear optical crystal material in optical field

Examples

Experimental program
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Effect test

Embodiment 1

[0025] Example 1: CdSO 4 preparation of

[0026] 3.876g (50mmol) 3CdSO 4 ·8H 2 O is soluble in water and becomes slightly acidic when dilute sulfuric acid is added dropwise. Keep the temperature at 40°C, evaporate slowly until colorless columnar crystals are precipitated, filter, and add a large amount of concentrated sulfuric acid to the filtrate to precipitate a large number of fine crystals.

Embodiment 2

[0027]Example 2: CdSO 4 Frequency doubling effect of single crystal powder

[0028] CdSO 4 The crystal is crushed and put into a metal sample cell with a symmetrical glass window; the KDP in the same state is used as a reference, and the 1064nm laser generated by a Nd:YAG laser is used as a light source for testing, and the obtained signal is displayed on the oscilloscope. CaSO 4 Crystal powder produces a frequency-doubled signal of 0.8 times the size of KDP. It shows that the compound can be used as a second-order nonlinear optical material, and within its light transmission range, it can produce frequency doubling effect on laser light.

Embodiment 3

[0029] Example 3: HgSO 4 Frequency doubling effect of single crystal powder

[0030] HgSO 4 The crystals (commercially purchased analytically pure, without crystal water, used directly) were finely ground and loaded into a metal sample cell with a symmetrical glass window; with KTP in the same state as a reference, the 1064nm laser produced by a Nd:YAG laser was used as a light source for Test and the resulting signal is displayed on the oscilloscope. HgSO 4 Crystal powder produces a frequency-doubled signal 1.1 times the size of KTP. It shows that the compound can be used as a second-order nonlinear optical material, and within its light transmission range, it can produce frequency doubling effect on laser light.

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Abstract

The invention relates to the application of HgSO4 or CdSO4 as inorganic non-linear optical crystal material in optical field. The HgSO4 or CdSO4 has large light-penetrated window in the ultraviolet and near infrared band, higher second-order non-linear optical coefficient, better physical chemical stability, the function to get larger single crystal, so it can be used as second-order non-linear optical material.

Description

technical field [0001] The present invention relates to HgSO 4 or CdSO 4 As the application of inorganic nonlinear optical crystal materials in the field of optics, it belongs to the field of inorganic chemistry and also belongs to the field of optical materials. Background technique [0002] Because of its important applications in laser technology and national defense, such as making second harmonic generators, frequency converters, optical parametric oscillators, etc., second-order nonlinear (SHG) crystal materials have always been one of the research hotspots. As far as inorganic substances are concerned, KDP (potassium dihydrogen phosphate), KTP (potassium titanyl phosphate), BBO (β-barium metaborate), LBO (lithium borate), AgGaSe 2 , ZnGeP 2 Wait. The research is mainly carried out in two aspects. One is to grow more perfect crystals that meet application requirements from known nonlinear optical (NLO) materials through crystal growth technology; the other is to fi...

Claims

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Application Information

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IPC IPC(8): H01S3/16
Inventor 苏旭刘涛秦金贵张刚陈创天吴以成
Owner WUHAN UNIV
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