Two-dimensional solitons with second-order nonlinearities.
نویسندگان
چکیده
We investigate the propagation of intense Gaussian beams in materials with quadratic nonlinearity. Excitation of (2 + 1) solitons is numerically predicted at finite phase mismatch and in the presence of linear walk-off between the fundamental and second-harmonic waves. The numerical results are interpreted in terms of the conserved quantities of the wave evolution, and the appropriate conditions for the experimental observation of the solitons are discussed.
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ورودعنوان ژورنال:
- Optics letters
دوره 20 1 شماره
صفحات -
تاریخ انتشار 1995