Spatial frequency combs and supercontinuum generation in one-dimensional photonic lattices.
نویسندگان
چکیده
We experimentally demonstrate the formation of spatial supercontinuum and of spatial frequency combs in nonlinear photonic lattices. This process results from multiple four-wave mixing initiated by launching two Floquet-Bloch modes into a one-dimensional lattice. The dynamics of the waves is sensitively dependent on the transverse momentum difference between the two initial modes: when this momentum difference is commensurable with the lattice momentum the waves evolve into a frequency comb, whereas when it is incommensurable the waves evolve into a supercontinuum of spatial frequencies.
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عنوان ژورنال:
- Physical review letters
دوره 101 18 شماره
صفحات -
تاریخ انتشار 2008