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Shaping the Nonlinear Emission Pattern of a Dielectric Nanoantenna by Integrated Holographic Gratings

Ghirardini, Lavinia; Marino, Giuseppe; Gili, Valerio F.; Favero, Ivan; Rocco, Davide; Carletti, Luca; Locatelli, Andrea; De Angelis, Costantino; Finazzi, Marco; Celebrano, Michele; Neshev, Dragomir; Leo, Guiseppe


We demonstrate the shaping of the second-harmonic (SH) radiation pattern from a single AlGaAs nanodisk antenna using coplanar holographic gratings. The SH radiation emitted from the antenna toward the—otherwise forbidden—normal direction can be effectively redirected by suitably shifting the phase of the grating pattern in the azimuthal direction. The use of such gratings allows increasing the SH power collection efficiency by 2 orders of magnitude with respect to an isolated antenna and...[Show more]

CollectionsANU Research Publications
Date published: 2018
Type: Journal article
Source: Nano Letters
DOI: 10.1021/acs.nanolett.8b02432


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