Experimental evidence of Fano resonances in nanomechanical resonators

Abstract Fano resonance refers to an interference between localized and continuum states that was firstly reported for atomic physics and solid-state quantum devices. In recent years, Fano interference gained more and more attention for its importance in metamaterials, nanoscale photonic devices, pl...

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Auteurs principaux:	Stefano Stassi, Alessandro Chiadò, Giuseppe Calafiore, Gianluca Palmara, Stefano Cabrini, Carlo Ricciardi
Format:	article
Langue:	EN
Publié:	Nature Portfolio 2017
Sujets:	Medicine R Science Q
Accès en ligne:	https://doaj.org/article/2211fc3707f743428baab48eafb611b2
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id	oai:doaj.org-article:2211fc3707f743428baab48eafb611b2
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spelling	oai:doaj.org-article:2211fc3707f743428baab48eafb611b22021-12-02T16:07:03ZExperimental evidence of Fano resonances in nanomechanical resonators10.1038/s41598-017-01147-y2045-2322https://doaj.org/article/2211fc3707f743428baab48eafb611b22017-04-01T00:00:00Zhttps://doi.org/10.1038/s41598-017-01147-yhttps://doaj.org/toc/2045-2322Abstract Fano resonance refers to an interference between localized and continuum states that was firstly reported for atomic physics and solid-state quantum devices. In recent years, Fano interference gained more and more attention for its importance in metamaterials, nanoscale photonic devices, plasmonic nanoclusters and surface-enhanced Raman scattering (SERS). Despite such interest in nano-optics, no experimental evidence of Fano interference was reported up to now for purely nanomechanical resonators, even if classical mechanical analogies were referred from a theoretical point of view. Here we demonstrate for the first time that harmonic nanomechanical resonators with relatively high quality factors, such as cantilevers vibrating in vacuum, can show characteristic Fano asymmetric curves when coupled in arrays. The reported findings open new perspectives in fundamental aspects of classical nanomechanical resonators and pave the way to a new generation of chemical and biological nanoresonator sensors with higher parallelization capability.Stefano StassiAlessandro ChiadòGiuseppe CalafioreGianluca PalmaraStefano CabriniCarlo RicciardiNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 7, Iss 1, Pp 1-8 (2017)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Stefano Stassi Alessandro Chiadò Giuseppe Calafiore Gianluca Palmara Stefano Cabrini Carlo Ricciardi Experimental evidence of Fano resonances in nanomechanical resonators
description	Abstract Fano resonance refers to an interference between localized and continuum states that was firstly reported for atomic physics and solid-state quantum devices. In recent years, Fano interference gained more and more attention for its importance in metamaterials, nanoscale photonic devices, plasmonic nanoclusters and surface-enhanced Raman scattering (SERS). Despite such interest in nano-optics, no experimental evidence of Fano interference was reported up to now for purely nanomechanical resonators, even if classical mechanical analogies were referred from a theoretical point of view. Here we demonstrate for the first time that harmonic nanomechanical resonators with relatively high quality factors, such as cantilevers vibrating in vacuum, can show characteristic Fano asymmetric curves when coupled in arrays. The reported findings open new perspectives in fundamental aspects of classical nanomechanical resonators and pave the way to a new generation of chemical and biological nanoresonator sensors with higher parallelization capability.
format	article
author	Stefano Stassi Alessandro Chiadò Giuseppe Calafiore Gianluca Palmara Stefano Cabrini Carlo Ricciardi
author_facet	Stefano Stassi Alessandro Chiadò Giuseppe Calafiore Gianluca Palmara Stefano Cabrini Carlo Ricciardi
author_sort	Stefano Stassi
title	Experimental evidence of Fano resonances in nanomechanical resonators
title_short	Experimental evidence of Fano resonances in nanomechanical resonators
title_full	Experimental evidence of Fano resonances in nanomechanical resonators
title_fullStr	Experimental evidence of Fano resonances in nanomechanical resonators
title_full_unstemmed	Experimental evidence of Fano resonances in nanomechanical resonators
title_sort	experimental evidence of fano resonances in nanomechanical resonators
publisher	Nature Portfolio
publishDate	2017
url	https://doaj.org/article/2211fc3707f743428baab48eafb611b2
work_keys_str_mv	AT stefanostassi experimentalevidenceoffanoresonancesinnanomechanicalresonators AT alessandrochiado experimentalevidenceoffanoresonancesinnanomechanicalresonators AT giuseppecalafiore experimentalevidenceoffanoresonancesinnanomechanicalresonators AT gianlucapalmara experimentalevidenceoffanoresonancesinnanomechanicalresonators AT stefanocabrini experimentalevidenceoffanoresonancesinnanomechanicalresonators AT carloricciardi experimentalevidenceoffanoresonancesinnanomechanicalresonators
_version_	1718384765462118400

Experimental evidence of Fano resonances in nanomechanical resonators

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