Resonant second harmonic generation in random dielectric structures

Year: 2006

Authors: Centini M., Felbacq D., Wiersma D., Sibilia C., Scalora M., Bertolotti, M

Autors Affiliation: Univ Roma La Sapienza, Dipartimento Energet, I-00161 Rome, Italy;
Univ Montpellier 2, Etud Semicond Grp, UMR 5650, F-34095 Montpellier 05, France;
European
Lab Nonlinear Spect, I-50019 Florence, Italy;
INFM Matis, I-50019 Florence, Italy;
AMSMI RD WS ST RDECOM, Charles M Bowden Res Ctr, Redstone Arsenal, AL 35898 USA

Abstract: We show that resonant second harmonic generation can be obtained in random dielectric structures. The scheme is based on internal resonances due to the optical counterpart of Anderson localization. By making use of different localization lengths at the fundamental and at the second harmonic frequencies, we predict a conversion efficiency that is four orders of magnitude higher than a bulk material and even one order of magnitude higher than an ideal phase matched slab of the same size. The method is highly insensitive to fabrication tolerances, and provides excellent angle tunability.

Journal/Review: JOURNAL OF THE EUROPEAN OPTICAL SOCIETY-RAPID PUBLICATIONS

Volume: 1      Pages from: 06021-1  to: 06021-5

KeyWords: Nonlinear; random structures;
DOI: 10.2971/jeos.2006.06021

Citations: 10
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