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

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 o...

Full description

Saved in:
Bibliographic Details
Published in:Nano letters 2018-11, Vol.18 (11), p.6750-6755
Main Authors: Ghirardini, Lavinia, Marino, Giuseppe, Gili, Valerio F, Favero, Ivan, Rocco, Davide, Carletti, Luca, Locatelli, Andrea, De Angelis, Costantino, Finazzi, Marco, Celebrano, Michele, Neshev, Dragomir N, Leo, Giuseppe
Format: Article
Language:English
Subjects:
Optics
Physics
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary: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 demonstrates the possibility of intensity-tailoring for an arbitrary collection angle. Such reconstruction of the nonlinear emission from nanoscale antennas represents the first step toward the application of all-dielectric nanostructures for nonlinear holography.
ISSN:1530-6984
1530-6992
DOI:10.1021/acs.nanolett.8b02432