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arXiv · 1604.08881

Monolithic AlGaAs second-harmonic nanoantennas

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

We demonstrate monolithic aluminum gallium arsenide (AlGaAs) optical anoantennas. Using a selective oxidation technique, we fabricate such epitaxial semiconductor nanoparticles on an aluminum oxide substrate. Second harmonic generation from an AlGaAs nanocylinder of height h=400 nm 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 otpimized geometry.

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V. F. Gili, L. Carletti, A. Locatelli, D. Rocco, M. Finazzi, L. Ghirardini, I. Favero, C. Gomez, A. Lemaître, M. Celebrano, C. De Angelis, G. Leo. 2016-04-29. Monolithic AlGaAs second-harmonic nanoantennas. https://doi.org/10.1364/oe.24.015965

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