Abstract
We present a theoretical study of optical phase conjugation by degenerate four-wave mixing in one-dimensional photonic crystals containing two kinds of single-negative materials. Compared to usual photonic crystals with the same thickness and third-order nonlinear susceptibility (), the generation efficiency of the optical phase- conjugate wave can be enhanced by nearly 3 orders of magnitude. Distinct from the band-edge state in usual photonic crystals, the enhancement is caused by the strong field localized at each interface of two types of single- negative materials. Owing to the unique properties of the band edge of the zero-effective-phase gap that is insensitive to the angle of incidence, the optical phase-conjugate wave can be generated efficiently in a wide range of angle of incidence.
© 2011 Optical Society of America
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