We report on the realization of microcavities made of hydrogenated amorphous-Si1−xNx multilayers, with dual-wavelength periodic dielectric mirrors in order to obtain first and second order stop bands. Optical second-harmonic generation with simultaneous resonance for the pump and harmonic waves is demonstrated at finite values of the angle of incidence. The results are in good agreement with a theoretical calculation of the harmonic generation process based on a nonlinear polarization localized at the interfaces between different amorphous layers.
Second-harmonic generation in hydrogenated amorphous-Si[sub 1?x]N[sub x] doubly resonant microcavities with periodic dielectric mirrors / Lettieri, S.; Gesuele, Felice; Maddalena, Pasqualino; Liscidini, M.; Andreani, L. C.; Ricciardi, C.; Ballarini, V.; Giorgis, F.. - In: APPLIED PHYSICS LETTERS. - ISSN 0003-6951. - 87:(2005), p. 191110. [10.1063/1.2125112]
Second-harmonic generation in hydrogenated amorphous-Si[sub 1?x]N[sub x] doubly resonant microcavities with periodic dielectric mirrors
S. Lettieri;GESUELE, FELICE;MADDALENA, PASQUALINO;
2005
Abstract
We report on the realization of microcavities made of hydrogenated amorphous-Si1−xNx multilayers, with dual-wavelength periodic dielectric mirrors in order to obtain first and second order stop bands. Optical second-harmonic generation with simultaneous resonance for the pump and harmonic waves is demonstrated at finite values of the angle of incidence. The results are in good agreement with a theoretical calculation of the harmonic generation process based on a nonlinear polarization localized at the interfaces between different amorphous layers.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
