DataVXACS PhotonicsPaper
journal article·2019-10-16Open access

Coherent Multiphoton Control of Gallium Phosphide Nanodisk Resonances

Vikas Remesh, Gustavo Grinblat, Yi Li, Stefan A. Maier, Niek F. van Hulst

ACS Photonics· Volume 6· Issue 10
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Source abstract

Abstract

High-index dielectric nanoantennas have recently emerged as promising alternatives to plasmonic nanoantennas for concentrating and manipulating light at the nanoscale. For example, gallium phosphide (GaP) nanoantennas display extremely low losses in the visible range and high nonlinearities, support both electric and magnetic resonances, and are nicely compatible with CMOS fabrication technology. Especially, the low losses and large nonlinearities are promising for ultrafast optical switching and truly all-optical control of GaP nanodevices. Here first we use two- and three-photon excitation of GaP nanodisks to probe the size-dependent resonance enhancement of second-harmonic and bandgap emission. Next, we show, by spectral phase control of broadband pulsed excitation, that GaP nanoantennas outperform their metal counterparts in supporting nonlinear optical coherences.
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Research context

Nanomaterials

OpenAlex topics: Photonic and Optical Devices · Quantum Information and Cryptography · Mechanical and Optical Resonators

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

ICFO, Institut de Ciences Fotoniques, The Barcelona Institute of Science and Technology, Castelldefels, Barcelona 08860, Spain

The Blackett Laboratory, Department of Physics, Imperial College London, London SW7 2AZ, United Kingdom

Departamento de Física, FCEN, IFIBA-CONICET, Universidad de Buenos Aires, C1428EGA, Buenos Aires, Argentina

Chair in Hybrid Nanosystems, Nanoinstitute Munich, Ludwig-Maximilians-Universität Munich, 80539, Munich, Germany

ICREA, Institució Catalana de Recerca i Estudis Avançats, Barcelona 08010, Spain

Funding

Engineering and Physical Sciences Research Council · European Commission · H2020 Marie Sklodowska-Curie Actions · Secretar?a de Estado de Investigaci?n, Desarrollo e Innovaci?n · Generalitat de Catalunya · H2020 European Research Council · Ag?ncia de Gesti? d'Ajuts Universitaris i de Recerca · Fundacio? Privada Cellex · Fundacio? Privada Mir-Puig

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