Boosting Second Harmonic Radiation from AlGaAs Nanoantennas with Epsilon-Near-Zero Materials

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ID: 66645
2018
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Abstract
Enhancing the second harmonic conversion efficiency at the nanoscale is a critical challenge in nonlinear optics. Here we propose the use of epsilon-near-zero materials to boost the nonlinear radiation in the far field. Here, a comparison of the second harmonic behavior of a cylindrical AlGaAs nanoantenna placed over different semi-infinite layers is presented. In particular, we observed that the second harmonic generation is strongly enhanced and redirected by the simultaneous presence of a resonance at the fundamental wavelength and a low-permittivity condition in the substrate at the harmonic wavelength. Our results pave the way for a novel approach to enhance optical nonlinearities at the nanoscale.
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rocco2018boostingapplied Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors Rocco, Davide;Vincenti, Maria Antonietta;Angelis, Costantino De;
Journal applied sciences
Year 2018
DOI
DOI not found
URL
https://www.mdpi.com/2076-3417/8/11/2212
Keywords
chemistry Biology (General) Medicine Technology (General) Chemical technology Engineering (General). Civil engineering (General) Technology Electrical engineering. Electronics. Nuclear engineering Science physics optics. light general works applied optics. photonics

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