DataVXACS PhotonicsPaper
journal article·2021-10-20

Acoustic Coupling between Plasmonic Nanoantennas: Detection and Directionality of Surface Acoustic Waves

Martin Poblet, Rodrigo Berté, Hilario D. Boggiano, Yi Li, Emiliano Cortés, Gustavo Grinblat, Stefan A. Maier, Andrea V. Bragas

ACS Photonics· Volume 8· Issue 10
Publisher page
Source abstract

Abstract

Hypersound waves can be efficient mediators between optical signals at the nanoscale. Having phase velocities several orders of magnitude lower than the speed of light, they propagate with much shorter wavelengths and can be controlled, directed, and even focused in a very small region of space. This work shows how two optical nanoantennas can be coupled through an acoustic wave that propagates with a certain directionality. An “emitter” antenna is first optically excited to generate acoustic coherent phonons that launch surface acoustic waves through the underlying substrate. These waves travel until they are mechanically detected by a “receiver” nanoantenna whose oscillation produces a detectable optical signal. Generation and detection are studied in detail, and new designs are proposed to improve the directionality of the hypersonic surface acoustic wave.
Source: openalex_inverted_index · Quality: baseline

Research context

Nanomaterials

OpenAlex topics: Mechanical and Optical Resonators · Plasmonic and Surface Plasmon Research · Microfluidic and Bio-sensing Technologies

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

Affiliations

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

Chair in Hybrid Nanosystems, Nanoinstitute Munich, Faculty of Physics, Ludwig-Maximilians-Universität München, 80539 München, Germany

Instituto de Física, Universidade Federal de Goiás, 74001-970 Goiânia-GO, Brazil

Departament of Physics, Imperial College London, London SW7 2AZ, United Kingdom

Funding

Engineering and Physical Sciences Research Council · Imperial College London · European Commission · Consejo Nacional de Investigaciones Cient??ficas y T??cnicas · Deutsche Forschungsgemeinschaft · Secretaria de Ciencia y Tecnica, Universidad de Buenos Aires · H2020 Marie Sk??odowska-Curie Actions · Ludwig-Maximilians-Universit??t M??nchen · Fondo para la Investigaci??n Cient??fica y Tecnol??gica · Lee Lucas Chair in Physics

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