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Complex-argument Laguerre–Gauss beams: transport of mean-squared beam width

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Abstract

For the azimuthally varying complex-argument Laguerre–Gauss beams, the Fourier integral representation is used to obtain the time-averaged power and the transport equation for the mean-squared beam width. From the coefficients in the transport equation, two propagation parameters are derived and compared with the previous treatments.

© 2005 Optical Society of America

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