Monolithic AlGaAs second-harmonic nanoantennas

Year: 2016

Authors: Gili V. F. , Carletti L., Locatelli A., Rocco D., Finazzi M., Ghirardini L., Favero I., Gomez C., Lemaître A., Celebrano M., De Angelis C., Leo G.

Autors Affiliation: Matériaux et Phénomènes Quantiques, Université Paris Diderot – Sorbonne Paris Cité, 10 rue A. Domon et L. Duquet, 75013 Paris, France;
Dept. of Information Engineering, University of Brescia, Via Branze 38, 25123 Brescia, Italy;
Dept. of Physics, Politecnico di Milano, Piazza Leonardo Da Vinci 32, 20133 Milano, Italy;
Laboratoire de Photonique et Nanostructures, CNRS-UPR20, Route de Nozay, 91460 Marcoussis, France

Abstract: We demonstrate monolithic aluminum gallium arsenide (AlGaAs) optical nanoantennas. Using a selective oxidation technique, we fabricated epitaxial semiconductor nanocylinders on an aluminum oxide substrate. Second harmonic generation from AlGaAs nanocylinders of 400 nm height and varying radius pumped with femtosecond pulses delivered at 1554-nm wavelength has been measured, revealing a peak conversion efficiency exceeding 10-5 for nanocylinders with an optimized geometry. (C) 2016 Optical Society of America

Journal/Review: OPTICS EXPRESS

Volume: 24 (14)      Pages from: 15965  to: 15971

More Information: This work was carried out in the framework of the Erasmus Mundus NANOPHI project, contract number 2013 5659/002-001, and of the NanoSpectroscopy COST Action MP1302. V. F. Gili thanks M. Hamoumi and W. Hease for fabrication hints, and acknowledges financial support from the “Double Culture” PhD Program of Sorbonne Paris Cite. The authors acknowledge financial support from CARIPLO Foundation (project “SHAPES – Second-HArmonic Plasmon-Enhanced Sensing” ref. 2013-0736), and thank P. Biagioni, G. Marino, G. Pellegrini, and A. Zayats for fruitful discussions.
DOI: 10.1364/OE.24.015965

Citations: 191
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