Multifrequency gap solitons in nonlinear photonic crystals.
نویسندگان
چکیده
We predict the existence of multifrequency gap solitons (MFGSs) in both one- and two-dimensional nonlinear photonic crystals. A MFGS is a single intrinsic mode possessing multiple frequencies inside the gap. Its existence is a result of synergic nonlinear coupling among solitons or soliton trains at different frequencies. Its formation can either lower the threshold fields of the respective frequency components or stabilize their excitations. These MFGSs form a new class of stable gap solitons.
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عنوان ژورنال:
- Physical review letters
دوره 91 21 شماره
صفحات -
تاریخ انتشار 2003