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《Physics Experimentation》 2018-10
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Obtaining the light field of laser transverse mode by Kirchhoff diffraction integral

WANG Yi-rong;LAN Jia-wen-jing;SUN Ping;QU Shuai;GAO Zhu;Department of Physics,Beijing Normal University;  
The analytical solution of the light field of square confocal spherical mirror was found with Kirchhoff diffraction integral,and the light field was shown in figures drawn by Matlab.The optical field distribution of the spherical confocal spherical mirror was approximately obtained on the premise that the Fresnel number was large enough.The light intensity data in the laser resonator cavity was collected by CMOS,and the wavelet de-noising and binarization was carried out with Matlab.Based on the theoretical model and the experiment result,it was found that the transverse mode field distribution was actually the superposition of several transverse modes.
【CateGory Index】: TN24
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