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Proceedings Paper

Second-harmonic generation in localized modes of a truncated dielectric periodic structure
Author(s): Ramon Alavedra Vilaseca; J. Trull; Jordi Martorell; Ramon Corbalan
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Paper 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.

Paper Details

Date Published: 10 June 1996
PDF: 7 pages
Proc. SPIE 2801, Nonlinear Optics of Low-Dimensional Structures and New Materials, (10 June 1996); doi: 10.1117/12.242119
Show Author Affiliations
Ramon Alavedra Vilaseca, Univ. Politecnica de Catalunya (Spain)
J. Trull, Univ. Politecnica de Catalunya (Spain)
Jordi Martorell, Univ. Autonoma de Barcelona (Spain)
Ramon Corbalan, Univ. Autonoma de Barcelona (Spain)


Published in SPIE Proceedings Vol. 2801:
Nonlinear Optics of Low-Dimensional Structures and New Materials
Vladimir I. Emel'yanov; Vladislav Ya. Panchenko, Editor(s)

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