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Updated: Aug 14, 2026

The Generation of Higher-order Laguerre-Gauss Optical Beams for High-precision Interferometry
Published on: August 12, 2013
Far-field intensity distribution and M2 factor of hollow Gaussian beams
Degang Deng1, Xiaoyong Fu, Chaoyang Wei
1Graduate School of the Chinese Academy of Sciences, Beijing 100039, China. ddg@mail.siom.ac.cn
Abstract:
The far-field intensity distribution of hollow Gaussian beams was investigated based on scalar diffraction theory. An analytical expression of the M2 factor of the beams was derived on the basis of the second-order moments. Moreover, numerical examples to illustrate our analytical results are given.
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