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Proceedings Paper

Nonlinear optical metasurfaces (Conference Presentation)
Author(s): Igal Brener

Paper Abstract

Two-dimensional metamaterials (metasurfaces) have led to many exciting phenomena both in linear and nonlinear optics. In this talk I will present an overview of some recent results for both metallic and dielectric metasurfaces. Record second order nonlinearities can be obtained when metallic metasurfaces are coupled with resonant electronic transitions in semiconductors such as intersubband transitions. Additionally, since the nonlinear unit in this case is a single resonator coupled to the semiconductor heterostructure, additional functionality can be obtained at the second harmonic beam. This phenomena can be described as a phased-array source. Using this principle, we have created beam and polarization splitters operating at the second harmonic wavelength. This is new functionality that has no counterpart in conventional nonlinear optical materials. Another interesting case is the combination of all-dielectric metasurfaces with nonlinear optical phenomena, both bulk and surface enhanced. All-dielectric metasurfaces provide a platform to engineer magnetic and electric resonant modes in wavelength-scale nanoresonators with very low loss. Fabricating such dielectric metasurfaces from different types of semiconductors can be used to enhance their second and third order nonlinearities by several orders of magnitudes.

Paper Details

Date Published: 26 July 2016
PDF: 1 pages
Proc. SPIE 9884, Nanophotonics VI, 98841M (26 July 2016); doi: 10.1117/12.2229061
Show Author Affiliations
Igal Brener, Sandia National Labs. (United States)

Published in SPIE Proceedings Vol. 9884:
Nanophotonics VI
David L. Andrews; Jean-Michel Nunzi; Andreas Ostendorf, Editor(s)

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