Analytical structure of Hermite Gaussian beam in far field |
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Authors: | Zhou Guo-Quan Chen Liang and Chu Xiu-Xiang |
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Institution: | School of Sciences, Zhejiang Forestry University, Lin'an 311300, China |
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Abstract: | Based on the vectorial structure of electromagnetic beam and the
method of stationary phase, the analytical structure of Hermite
Gaussian beam in far field is presented. The structural energy flux
distributions are also investigated in the far field. The structural
pictures of some Hermite Gaussian beams are depicted in the far
field. As the structure of Hermite Gaussian beam is dominated by the
transverse mode numbers and the initial transverse Gaussian half
width, it is more complex than that of Gaussian beam. The ratios of
the structural energy fluxes to the whole energy flux are independent
of the transverse mode numbers and the initial transverse Gaussian
half width.
The present research reveals the internal vectorial structure of Hermite Gaussian beam from other viewpoint.\ |
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Keywords: | Hermite Gaussian beam vectorial structure method of stationary phase beam propagation |
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