期刊
OPTICS COMMUNICATIONS
卷 253, 期 4-6, 页码 231-241出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.optcom.2005.04.069
关键词
elegant Hermite-cosh-Gaussian; standard HChG beams; hard-edged aperture; M-G(2)-factor
类别
Based on the second-order irradiance moment definitions, the closed form expression M-G(2)-factor of hard-edge diffracted elegant Hermite-cosh-Gaussian beam is derived and illustrated numerically. Furthermore, a comparison, including characteristic parameters such as the PIB and M-G(2)-factor, of the elegant and standard Hermite-cosh-Gaussian beams is made. The results provide more general characteristic because all familiar rectangular laser modes, i.e., the cosh-Gaussian, Hermite-Gaussian, elegant-Hermite-Gaussian and Gaussian beams are obtained as special cases of standard or elegant Hermite-cosh-Gaussian beams. (c) 2005 Elsevier B.V. All rights reserved.
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