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The M 2 factor and kurtosis parameter of the off-axial Hermite-cosh-Gaussian beams

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Abstract:

Firstly, the analytical expression for the M 2 factor of the off-axial Hermite-cosh-Gaussian beams is derived based on the second-order moments definition. Secondly, the analytical propagation expression for the kurtosis parameter of the off-axial Hermite-cosh-Gaussian beams is also derived on the basis of the analytical propagation equation of the off-axial Hermite-cosh-Gaussian beams. It should be pointed out that the obtained results could be straightforwardly applied to the two-dimensional case and the off-axial Hermite-cosine-Gaussian beams.

Document Type: Research Article

DOI: http://dx.doi.org/10.1078/0030-4026-00332

Affiliations: Department of Physics, Zhejiang University, Hangzhou 310027, China

Publication date: May 1, 2004

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