Switchable unidirectional second-harmonic emission through GaAs nanoantennas
Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › Scientific › peer-review
Details
| Original language | English |
|---|---|
| Title of host publication | AOS Australian Conference on Optical Fibre Technology, ACOFT 2019 and Australian Conference on Optics, Lasers, and Spectroscopy, ACOLS 2019 |
| Editors | Arnan Mitchell, Halina Rubinsztein-Dunlop |
| Publisher | SPIE |
| ISBN (Electronic) | 9781510631403 |
| DOIs | |
| Publication status | Published - 2019 |
| Publication type | A4 Article in a conference publication |
| Event | Australian Conference on Optical Fibre Technology and Australian Conference on Optics, Lasers, and Spectroscopy - Melbourne, Australia Duration: 9 Dec 2019 → 12 Dec 2019 |
Publication series
| Name | Proceedings of SPIE - The International Society for Optical Engineering |
|---|---|
| Volume | 11200 |
| ISSN (Print) | 0277-786X |
| ISSN (Electronic) | 1996-756X |
Conference
| Conference | Australian Conference on Optical Fibre Technology and Australian Conference on Optics, Lasers, and Spectroscopy |
|---|---|
| Country | Australia |
| City | Melbourne |
| Period | 9/12/19 → 12/12/19 |
Abstract
Switching the scattering direction of high-index dielectric nanoantennas between forward and backward, via Mie resonances in the linear regime, has been widely studied, recently. However, switching the harmonic emission of nanoantennas without applying any physical change to the antennas, such as geometry, or environment, is a chal-lenging task that has not been demonstrated yet. Here, we investigate multipolar second-harmonic switch from GaAs nanoantennas. Based on the peculiar nonlinearities of zinc-blende semiconductors, we demonstrate both theoretically and experimentally unidirectional nonlinear emission routing and switching via pump polarization control. Our results offer exciting opportunities for nonlinear nanophotonics technologies, such as nanoscale light routing elements, nonlinear light sources, nonlinear imaging, multifunctional flat optical elements.
ASJC Scopus subject areas
Keywords
- Dielectric nanoresonators, Mie resonance, Second harmonic generation, Unidirectional emission