Second-harmonic generation in localized modes of a truncated dielectric periodic structure

Ramon Alavedra Vilaseca; J. Trull; Jordi Martorell; Ramon Corbalan

doi:10.1117/12.242119

10 June 1996 Second-harmonic generation in localized modes of a truncated dielectric periodic structure

Ramon Alavedra Vilaseca, J. Trull, Jordi Martorell, Ramon Corbalan

Proceedings Volume 2801, Nonlinear Optics of Low-Dimensional Structures and New Materials; (1996) https://doi.org/10.1117/12.242119
Event: International Conference on Coherent and Nonlinear Optics, 1995, St. Petersburg, Russian Federation

Abstract

We present an experimental study of the second harmonic light generated at a slab of nonlinear molecules embedded in a 1D periodic structure, truncated by the introduction of a defect in the central period. We have observed an enhancement of the nonlinear interaction in the vicinity of the defect, when the second harmonic wave is excited for modes within the forbidden zone or stop band. We have also observed an enhancement near the band edge, where the group velocity approaches zero. Second harmonic generation is completely suppressed for local modes within the forbidden band other than the defect mode.

Citation Download Citation

Ramon Alavedra Vilaseca, J. Trull, Jordi Martorell, and Ramon Corbalan "Second-harmonic generation in localized modes of a truncated dielectric periodic structure", Proc. SPIE 2801, Nonlinear Optics of Low-Dimensional Structures and New Materials, (10 June 1996); https://doi.org/10.1117/12.242119

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