Dumeige, Y.; et al.; Enhancement of second-harmonic generation in a one-dimensional semiconductor photonic band gap; Applied Physics Letters 78, 3021 (2001); https://aip.scitation.org/doi/10.1063/1.1372356
We demonstrate significant enhancement of second-order nonlinear interactions in a one-dimensional semiconductor Bragg mirror operating as a photonic band gap structure. The enhancement comes from a simultaneous availability of a high density of states, thanks to high field localization, and the improvement of effective coherent length near the photonic band edge.
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