Application of Ca3(BO3)2 crystal stimulated Raman scattering

A technology of stimulated Raman scattering and crystal, which is applied in the direction of laser utilizing scattering effect, active dielectric materials, etc., can solve the problems of high melting point, unfavorable application of Raman conversion devices, and high toxicity.

Active Publication Date: 2015-02-11
SHANDONG UNIV
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Problems solved by technology

[0003] Currently commonly used solid Raman materials are YVO 4 and SrWO 4 Crystal, YVO 4 The crystalline melting point is high and the original material V 2 o 5 It is highly toxic and pollutes the environment; SrWO 4 During crystal growth W 2 o 3 It is extremely volatile, so the composition is difficult to control. In addition, these two crystals contain rare earth elements, so the cost is high; there is also YVO 4 and SrWO 4 Crystal UV cut-off edges are 400nm and 300nm respectively, much larger than Ca 3 (BO 3 ) 2 The 180nm of the crystal is not conducive to the application of Raman frequency conversion devices in the deep ultraviolet

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  • Application of Ca3(BO3)2 crystal stimulated Raman scattering
  • Application of Ca3(BO3)2 crystal stimulated Raman scattering
  • Application of Ca3(BO3)2 crystal stimulated Raman scattering

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Embodiment Construction

[0011] a Ca 3 (BO 3 ) 2 Applications of Crystal Stimulated Raman Scattering:

[0012] 1) For the Ca 3 (BO 3 ) 2 The crystal passes through the direction of light, that is, it is processed into a Raman device along the optical axis X-axis, that is, Ca 3 (BO 3 ) 2 For Raman crystals, the processing angle is (90°, 0°). The above cut angles follow the international practice of crystallography. The first angle is the angle between the space cutting direction and the Z axis in the space coordinate system, and the latter angle is the space cutting direction. In the spatial coordinate system, the angle between the projection in the XY plane and the X-axis, where the X-axis, Y-axis and Z-axis are the coordinate axes of the three-dimensional space;

[0013] 2) The fundamental frequency laser is used as the pump source, the pump light is polarized along the Y axis, and the X axis is incident on Ca 3 (BO 3 ) 2 Raman crystal, and finally obtain Raman scattering laser:

[0014] ...

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Abstract

The invention provides application of Ca3(BO3)2 crystal stimulated Raman scattering. A Ca3(BO3)2 crystal is machined into a Raman device along an optical main axis (90 degrees, 0 degree), namely, an X axis; laser light of high-peak power is emitted along the X axis; Raman scattering laser light is obtained by using maximum Raman shift, a high optical damage resisting threshold value and a high Raman gain. The Ca3(BO3)2 Raman crystal is machined into a stimulated Raman scattering device by using the characteristics of easiness in manufacturing, prevention of pollution, low manufacturing cost, high optical damage resisting threshold value, short ultraviolet stop edge, high transmittance, large Raman shift and the like, so that the size of a Raman laser is reduced, the performance of the Raman laser is enhanced, and the application of a deep ultraviolet Raman laser is facilitated.

Description

technical field [0001] The present invention relates to a Ca 3 (BO 3 ) 2 The application of crystal stimulated Raman scattering belongs to the technical field of Raman lasers and devices. Background technique [0002] Using the stimulated Raman scattering technology of crystals, some new laser wavelengths can be obtained, such as yellow, orange laser and 1.5μm human eye-safe laser. Raman crystals that have been studied so far include diamond, nitrate (Ba(NO 3 ) 2 ), tungstate (BaWO 4 、SrWO 4 ), vanadate (YVO 4 、GdVO 4 ), molybdate (BaMoO 4 , SrMoO 4 ), phosphate (KTiOPO 4 、KH 2 PO 4 ), iodate (LiIO 3 ), carbonate (CaCO 3 ) etc., while the borate Ca 3 (BO 3 ) 2 There is no report on the stimulated Raman properties of crystals at home and abroad. Compared with other crystals, Ca 3 (BO 3 ) 2 Crystal has five significant advantages as a Raman medium: easy growth, low cost, good ultraviolet light transmission performance, high resistance to laser damage thre...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01S3/30H01S3/16
Inventor 王正平刘彦庆张芳于法鹏侯帅赵显许心光
Owner SHANDONG UNIV
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