Role of walk-off in solitary-wave propagation in materials with quadratic nonlinearity
Anno: 1997
Autori: Capobianco A. D., Costantini B., De Angelis C., Laureti Palma A., Nalesso G. F.
Affiliazione autori: Istituto Nazionale per la Fisica della Materil, Dipartimento di Elettronica e Informatica, Universita` di Padova, via
Gradenigo 6/a, 35131 Padova, Italy
Abstract: In the framework of second-harmonic generation with type I phase matching, we investigated the role played by temporal or spatial walk-off. Using a variational technique, we found that a two-parameter class of solutions always exists, even when nonnegligible spatial or temporal walk-off is present. We checked solitonlike behavior for the approximate stationary solutions by numerical integration of the governing equations; expressions of phase condition for stationary solutions and velocity of the locked waves were derived. To outline the possibilities offered by our approach in predicting the behavior of chi((2)) devices, several examples for beam and pulse propagation in KTiOPO4 and LiNbO3 are presented. (C) 1997 Optical Society of America.
Giornale/Rivista: JOURNAL OF THE OPTICAL SOCIETY OF AMERICA B: OPTICAL PHYSICS
Volume: 14 (10) Da Pagina: 2602 A: 2609
Parole chiavi: Nonlinear OpticsDOI: 10.1364/JOSAB.14.002602Citazioni: 13dati da “WEB OF SCIENCE” (of Thomson Reuters) aggiornati al: 2024-04-28Riferimenti tratti da Isi Web of Knowledge: (solo abbonati) Link per visualizzare la scheda su IsiWeb: Clicca quiLink per visualizzare la citazioni su IsiWeb: Clicca qui