Free-Space Ultrashort Pulsed Beam Propagation Beyond the Paraxial Approximation
نویسندگان
چکیده
Applying the temporal and spatial Fourier transform method, we obtain a nonparaxial pulsed beam solution, which is based on the paraxial pulsed beam solution, where the nonparaxiality is evaluated by using a series of expansions. Specifically, the general lowest-order correction field is given in an integral form. Some special examples, such as the lowest-order correction to the paraxial approximation of a fundamental Gaussian pulsed Gaussian-like beam, whose waist plane has a parallel shift from the z = 0 plane, are presented.
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