Optomechanical crystals for spatial sensing of submicron sized particles

Abstract Optomechanical crystal cavities (OMC) have rich perspectives for detecting and indirectly analysing biological particles, such as proteins, bacteria and viruses. In this work we demonstrate the working principle of OMCs operating under ambient conditions as a sensor of submicrometer particl...

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Autores principales:	D. Navarro-Urrios, E. Kang, P. Xiao, M. F. Colombano, G. Arregui, B. Graczykowski, N. E. Capuj, M. Sledzinska, C. M. Sotomayor-Torres, G. Fytas
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/c8460f4d8c6b40418adade734729c3c3
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spelling	oai:doaj.org-article:c8460f4d8c6b40418adade734729c3c32021-12-02T14:22:43ZOptomechanical crystals for spatial sensing of submicron sized particles10.1038/s41598-021-87558-42045-2322https://doaj.org/article/c8460f4d8c6b40418adade734729c3c32021-04-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-87558-4https://doaj.org/toc/2045-2322Abstract Optomechanical crystal cavities (OMC) have rich perspectives for detecting and indirectly analysing biological particles, such as proteins, bacteria and viruses. In this work we demonstrate the working principle of OMCs operating under ambient conditions as a sensor of submicrometer particles by optically monitoring the frequency shift of thermally activated mechanical modes. The resonator has been specifically designed so that the cavity region supports a particular family of low modal-volume mechanical modes, commonly known as -pinch modes-. These involve the oscillation of only a couple of adjacent cavity cells that are relatively insensitive to perturbations in other parts of the resonator. The eigenfrequency of these modes decreases as the deformation is localized closer to the centre of the resonator. Thus, by identifying specific modes that undergo a frequency shift that amply exceeds the mechanical linewidth, it is possible to infer if there are particles deposited on the resonator, how many are there and their approximate position within the cavity region. OMCs have rich perspectives for detecting and indirectly analysing biological particles, such as proteins, viruses and bacteria.D. Navarro-UrriosE. KangP. XiaoM. F. ColombanoG. ArreguiB. GraczykowskiN. E. CapujM. SledzinskaC. M. Sotomayor-TorresG. FytasNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-7 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q D. Navarro-Urrios E. Kang P. Xiao M. F. Colombano G. Arregui B. Graczykowski N. E. Capuj M. Sledzinska C. M. Sotomayor-Torres G. Fytas Optomechanical crystals for spatial sensing of submicron sized particles
description	Abstract Optomechanical crystal cavities (OMC) have rich perspectives for detecting and indirectly analysing biological particles, such as proteins, bacteria and viruses. In this work we demonstrate the working principle of OMCs operating under ambient conditions as a sensor of submicrometer particles by optically monitoring the frequency shift of thermally activated mechanical modes. The resonator has been specifically designed so that the cavity region supports a particular family of low modal-volume mechanical modes, commonly known as -pinch modes-. These involve the oscillation of only a couple of adjacent cavity cells that are relatively insensitive to perturbations in other parts of the resonator. The eigenfrequency of these modes decreases as the deformation is localized closer to the centre of the resonator. Thus, by identifying specific modes that undergo a frequency shift that amply exceeds the mechanical linewidth, it is possible to infer if there are particles deposited on the resonator, how many are there and their approximate position within the cavity region. OMCs have rich perspectives for detecting and indirectly analysing biological particles, such as proteins, viruses and bacteria.
format	article
author	D. Navarro-Urrios E. Kang P. Xiao M. F. Colombano G. Arregui B. Graczykowski N. E. Capuj M. Sledzinska C. M. Sotomayor-Torres G. Fytas
author_facet	D. Navarro-Urrios E. Kang P. Xiao M. F. Colombano G. Arregui B. Graczykowski N. E. Capuj M. Sledzinska C. M. Sotomayor-Torres G. Fytas
author_sort	D. Navarro-Urrios
title	Optomechanical crystals for spatial sensing of submicron sized particles
title_short	Optomechanical crystals for spatial sensing of submicron sized particles
title_full	Optomechanical crystals for spatial sensing of submicron sized particles
title_fullStr	Optomechanical crystals for spatial sensing of submicron sized particles
title_full_unstemmed	Optomechanical crystals for spatial sensing of submicron sized particles
title_sort	optomechanical crystals for spatial sensing of submicron sized particles
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/c8460f4d8c6b40418adade734729c3c3
work_keys_str_mv	AT dnavarrourrios optomechanicalcrystalsforspatialsensingofsubmicronsizedparticles AT ekang optomechanicalcrystalsforspatialsensingofsubmicronsizedparticles AT pxiao optomechanicalcrystalsforspatialsensingofsubmicronsizedparticles AT mfcolombano optomechanicalcrystalsforspatialsensingofsubmicronsizedparticles AT garregui optomechanicalcrystalsforspatialsensingofsubmicronsizedparticles AT bgraczykowski optomechanicalcrystalsforspatialsensingofsubmicronsizedparticles AT necapuj optomechanicalcrystalsforspatialsensingofsubmicronsizedparticles AT msledzinska optomechanicalcrystalsforspatialsensingofsubmicronsizedparticles AT cmsotomayortorres optomechanicalcrystalsforspatialsensingofsubmicronsizedparticles AT gfytas optomechanicalcrystalsforspatialsensingofsubmicronsizedparticles
_version_	1718391515787558912

Optomechanical crystals for spatial sensing of submicron sized particles

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