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Nonparaxial correction solution to isodiffracting sub-cycle pulsed beam propagation in free space
Hong Guo,Dongmei Deng,Fahuai Yi,Hong Jin Kong,Lu Guangshan 한국물리학회 2003 THE JOURNAL OF THE KOREAN PHYSICAL SOCIETY Vol.42 No.5
The propagation of an isodifiracting sub-cycle pulsed beam, modelled by a Poisson spectrum, in free space is studied, and a nonparaxially corrected solution is presented both analytically and numerically. Numerical simulations indicate that, for a half-cycle pulsed beam, the paraxial approximation is not valid, so the nonparaxial corrections must be taken into account.