Gigahertz Optomechanical Modulation by Split-Ring-Resonator Nanophotonic Meta-Atom Arrays

Imade, Y; Ulbricht, R; Tomoda, M; Matsuda, O; Seniutinas, G; Juodkazis, S; Wright, OB

Gigahertz Optomechanical Modulation by Split-Ring-Resonator Nanophotonic Meta-Atom Arrays

Imade, Y Ulbricht, R Tomoda, M Matsuda, O Seniutinas, G Juodkazis, S Wright, OB

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Publication Type:: Journal Article
Citation:: Nano Letters, 2017, 17 (11), pp. 6684 - 6689
Issue Date:: 2017-11-08

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Field	Value	Language
dc.contributor.author	Imade, Y	en_US
dc.contributor.author	Ulbricht, R	en_US
dc.contributor.author	Tomoda, M	en_US
dc.contributor.author	Matsuda, O	en_US
dc.contributor.author	Seniutinas, G	en_US
dc.contributor.author	Juodkazis, S	en_US
dc.contributor.author	Wright, OB	en_US
dc.date.issued	2017-11-08	en_US
dc.identifier.citation	Nano Letters, 2017, 17 (11), pp. 6684 - 6689	en_US
dc.identifier.issn	1530-6984	en_US
dc.identifier.uri	http://hdl.handle.net/10453/124523
dc.description.abstract	© 2017 American Chemical Society. Using polarization-resolved transient reflection spectroscopy, we investigate a metasurface consisting of coherently vibrating nanophotonic U-shaped split-ring meta-atoms that exhibit colocalized optical and mechanical resonances. With an array of these resonators formed of gold on glass, essentially miniature tuning forks, we monitor the visible-pump induced gigahertz oscillations in reflected infrared light intensity to probe the multimodal vibrational response. Numerical simulations of the associated transient deformations and strain fields elucidate the complex nanomechanical dynamics contributing to the ultrafast optical modulation and point to the role of acousto-plasmonic interactions through the opening and closing motion of the SRR gaps as the dominant effect. Applications include ultrafast acoustooptic modulator design and sensing.	en_US
dc.relation.ispartof	Nano Letters	en_US
dc.relation.isbasedon	10.1021/acs.nanolett.7b02663	en_US
dc.subject.classification	Nanoscience & Nanotechnology	en_US
dc.title	Gigahertz Optomechanical Modulation by Split-Ring-Resonator Nanophotonic Meta-Atom Arrays	en_US
dc.type	Journal Article
utslib.citation.volume	11	en_US
utslib.citation.volume	17	en_US
utslib.for	1007 Nanotechnology	en_US
pubs.embargo.period	Not known	en_US
pubs.organisational-group	/University of Technology Sydney
pubs.organisational-group	/University of Technology Sydney/Faculty of Science
pubs.organisational-group	/University of Technology Sydney/Faculty of Science/School of Mathematical and Physical Sciences
utslib.copyright.status	closed_access
pubs.issue	11	en_US
pubs.publication-status	Published	en_US
pubs.volume	17	en_US

Abstract:

© 2017 American Chemical Society. Using polarization-resolved transient reflection spectroscopy, we investigate a metasurface consisting of coherently vibrating nanophotonic U-shaped split-ring meta-atoms that exhibit colocalized optical and mechanical resonances. With an array of these resonators formed of gold on glass, essentially miniature tuning forks, we monitor the visible-pump induced gigahertz oscillations in reflected infrared light intensity to probe the multimodal vibrational response. Numerical simulations of the associated transient deformations and strain fields elucidate the complex nanomechanical dynamics contributing to the ultrafast optical modulation and point to the role of acousto-plasmonic interactions through the opening and closing motion of the SRR gaps as the dominant effect. Applications include ultrafast acoustooptic modulator design and sensing.

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http://hdl.handle.net/10453/124523