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Proceedings Paper

Noncollinear type II second harmonic generation in Al(0.3)Ga(0.7)As/Al2O3 one-dimensional photonic bandgap structure
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Paper Abstract

We have designed a one-dimensional photonic bandgap crystal to obtain perfect phase-matching conditions for noncollinear type II quadratic processes. The realized sample was 15 periods of Al(0.3)Ga(0.7)As/Al2O3, for a total length of 3.5um. Noncollinear type II phase-matching was obtained at 1510nm. We have experimentally verified the band structure characteristic as well as its perfect phase-matching for the noncollinear type II parametric process. Indeed, noncollinear type II second harmonic generation was obtained for the first time in a PBG crystal1. The experiment demonstrated that the breaking of symmetry, which is artificially induced in such a structure, and the field resonance effect give rise to a relatively efficient second harmonic generation even using a naturally isotropic material (AlGaAs). In fact, we report a nonlinear effective coefficient of the sample equal to (52±12) pm/V.

Paper Details

Date Published: 15 September 2004
PDF: 6 pages
Proc. SPIE 5450, Photonic Crystal Materials and Nanostructures, (15 September 2004); doi: 10.1117/12.545876
Show Author Affiliations
Alessio Bosco, INFM and Univ. degli Studi di Roma La Sapienza (Italy)
Marco Centini, INFM and Univ. degli Studi di Roma La Sapienza (Italy)
Letizia Sciscione, INFM and Univ. degli Studi di Roma La Sapienza (Italy)
Eugenio Fazio, INFM and Univ. degli Studi di Roma La Sapienza (Italy)
Concita Sibilia, INFM and Univ. degli Studi di Roma La Sapienza (Italy)
Andrea Fiore, Ecole Polytechnique Federale de Lausanne (Switzerland)
Consiglio Nazionale delle Ricerche (Italy)
Luciana Cerri, Consiglio Nazionale delle Ricerche (Italy)
Michael Scalora, U.S. Army Aviation and Missile Command (United States)
Mario Bertolotti, INFM and Univ. degli Studi di Roma La Sapienza (Italy)


Published in SPIE Proceedings Vol. 5450:
Photonic Crystal Materials and Nanostructures
Richard M. De La Rue; Pierre Viktorovitch; Clivia M. Sotomayor Torres; Michele Midrio, Editor(s)

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