Vectorial Structure of Non-Paraxial Linearly Polarized Gaussian Beam in Far Field
ZHOU Guo-Quan, CHEN Liang, NI Yong-Zhou
School of Sciences, Zhejiang Forestry University, Lin’an 311300
Vectorial Structure of Non-Paraxial Linearly Polarized Gaussian Beam in Far Field
ZHOU Guo-Quan;CHEN Liang;NI Yong-Zhou
School of Sciences, Zhejiang Forestry University, Lin’an 311300
关键词 ：
42.25.Bs ,
41.85.Ew
Abstract ： According to the vectorial structure of non-paraxial electromagnetic beams and the method of stationary phase, the analytical TE and TM terms of non-paraxial linearly polarized Gaussian beam are presented in the far field. The influence of linearly polarized angle on the relative energy flux distributions of the whole beam and its TE and TM terms is studied. The beam spot of the TE term is perpendicular to the direction of linearly polarized angle, while that of the TM term coincides with the direction of linearly polarized angle. The whole beam spot is elliptical, and the long axis is located at the direction of linearly polarized angle. The relative energy flux distribution of the TE term is relatively centralized in the direction perpendicular to the linearly polarized angle. While that of the TM term is relatively centralized in the direction of linearly polarized angle. To obtain the isolated TM and TE terms, a polarizer should be put at the long and the short axis of the whole beam spot, respectively.
Key words ：
42.25.Bs
41.85.Ew
出版日期: 2006-05-01
:
42.25.Bs
(Wave propagation, transmission and absorption)
41.85.Ew
(Particle beam profile, beam intensity)
引用本文:
ZHOU Guo-Quan;CHEN Liang;NI Yong-Zhou. Vectorial Structure of Non-Paraxial Linearly Polarized Gaussian Beam in Far Field[J]. 中国物理快报, 2006, 23(5): 1180-1183.
链接本文:
https://cpl.iphy.ac.cn/CN/
或
https://cpl.iphy.ac.cn/CN/Y2006/V23/I5/1180
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