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Photonic Band-Gap Inhibition of Modulational Instabilities

Gomila, Damià; Zambrini, Roberta; Oppo, Gian-Luca
Physical Review Letters 92, 253904 (1-4) (2004)

Spatial structures as a result of a modulational instability are studied in a nonlinear cavity with a photonic crystal. The interaction of the modulated refractive index with the nonlinearity inhibits the instability via the creation of a photonic band gap. A novel mechanism of light localization due to defects and pattern inhibition is also described.