Multipole engineering of attractive-repulsive and bending optical forces

Focused laser beams allow controlling the mechanical motion of objects and can serve as a tool for assembling micro and nanostructures in space. While small particles mainly experience attractive gradient forces and repulsive radiation pressure, introducing additional flexibility suggests approachin...

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Autores: Kislov, Denis A., Gurvitz, Egor A., Bobrovs, Vjaceslavs, Pavlov, Alexander A., Redka, Dmitrii N., Marqués Ponce, Manuel Ignacio, Ginzburg, Pavel, Shalin, Alexander S.
Tipo de recurso: artículo
Fecha de publicación:2021
País:España
Institución:Universidad Autónoma de Madrid
Repositorio:Biblos-e Archivo. Repositorio Institucional de la UAM
Idioma:inglés
OAI Identifier:oai:repositorio.uam.es:10486/704277
Acceso en línea:http://hdl.handle.net/10486/704277
https://dx.doi.org/10.1002/adpr.202100082
Access Level:acceso abierto
Palabra clave:Multipole Decompositions
Optical Tweezers
Quadrupole Optical Forces
Silicon Nanoparticles
Transversal Antitrapping
Física
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spelling Multipole engineering of attractive-repulsive and bending optical forcesKislov, Denis A.Gurvitz, Egor A.Bobrovs, VjaceslavsPavlov, Alexander A.Redka, Dmitrii N.Marqués Ponce, Manuel IgnacioGinzburg, PavelShalin, Alexander S.Multipole DecompositionsOptical TweezersQuadrupole Optical ForcesSilicon NanoparticlesTransversal AntitrappingFísicaFocused laser beams allow controlling the mechanical motion of objects and can serve as a tool for assembling micro and nanostructures in space. While small particles mainly experience attractive gradient forces and repulsive radiation pressure, introducing additional flexibility suggests approaching new capabilities. Herein, optical forces acting on a high refractive index sphere in a focused Gaussian beam are analyzed and new regimes are revealed. Multipolar analysis allows separating an optical force into interception and recoil components, resulting in different mechanical actions. In particular, interplaying interception radial forces and multipolar resonances within a particle can lead to either trapping or antitrapping, depending on the system parameters. At the same time, the recoil force generates a significant azimuthal component along with an angulardependent radial force. Those contributions enable enhancing either trapping or antitrapping and also introduce bending reactions. These effects are linked to the far-field multipole interference and, specifically, to asymmetric scattering patterns. The latter approach is extremely useful, as it allows assessing the nature of optomechanical motion by observing far-fields. Multipolar engineering of optical forces, being quite a general approach, is not necessarily linked to simple spherical shapes and paves a way to new possibilities in microfluidic applications, including sorting and microassemblyWiley-VCH VerlagDepartamento de Física de MaterialesFacultad de Ciencias20212021-07-16research articlehttp://purl.org/coar/resource_type/c_2df8fbb1VoRhttp://purl.org/coar/version/c_970fb48d4fbd8a85info:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10486/704277https://dx.doi.org/10.1002/adpr.202100082reponame:Biblos-e Archivo. Repositorio Institucional de la UAMinstname:Universidad Autónoma de MadridInglésengopen accesshttp://purl.org/coar/access_right/c_abf2info:eu-repo/semantics/openAccessoai:repositorio.uam.es:10486/7042772026-06-23T12:46:27Z
dc.title.none.fl_str_mv Multipole engineering of attractive-repulsive and bending optical forces
title Multipole engineering of attractive-repulsive and bending optical forces
spellingShingle Multipole engineering of attractive-repulsive and bending optical forces
Kislov, Denis A.
Multipole Decompositions
Optical Tweezers
Quadrupole Optical Forces
Silicon Nanoparticles
Transversal Antitrapping
Física
title_short Multipole engineering of attractive-repulsive and bending optical forces
title_full Multipole engineering of attractive-repulsive and bending optical forces
title_fullStr Multipole engineering of attractive-repulsive and bending optical forces
title_full_unstemmed Multipole engineering of attractive-repulsive and bending optical forces
title_sort Multipole engineering of attractive-repulsive and bending optical forces
dc.creator.none.fl_str_mv Kislov, Denis A.
Gurvitz, Egor A.
Bobrovs, Vjaceslavs
Pavlov, Alexander A.
Redka, Dmitrii N.
Marqués Ponce, Manuel Ignacio
Ginzburg, Pavel
Shalin, Alexander S.
author Kislov, Denis A.
author_facet Kislov, Denis A.
Gurvitz, Egor A.
Bobrovs, Vjaceslavs
Pavlov, Alexander A.
Redka, Dmitrii N.
Marqués Ponce, Manuel Ignacio
Ginzburg, Pavel
Shalin, Alexander S.
author_role author
author2 Gurvitz, Egor A.
Bobrovs, Vjaceslavs
Pavlov, Alexander A.
Redka, Dmitrii N.
Marqués Ponce, Manuel Ignacio
Ginzburg, Pavel
Shalin, Alexander S.
author2_role author
author
author
author
author
author
author
dc.contributor.none.fl_str_mv Departamento de Física de Materiales
Facultad de Ciencias
dc.subject.none.fl_str_mv Multipole Decompositions
Optical Tweezers
Quadrupole Optical Forces
Silicon Nanoparticles
Transversal Antitrapping
Física
topic Multipole Decompositions
Optical Tweezers
Quadrupole Optical Forces
Silicon Nanoparticles
Transversal Antitrapping
Física
description Focused laser beams allow controlling the mechanical motion of objects and can serve as a tool for assembling micro and nanostructures in space. While small particles mainly experience attractive gradient forces and repulsive radiation pressure, introducing additional flexibility suggests approaching new capabilities. Herein, optical forces acting on a high refractive index sphere in a focused Gaussian beam are analyzed and new regimes are revealed. Multipolar analysis allows separating an optical force into interception and recoil components, resulting in different mechanical actions. In particular, interplaying interception radial forces and multipolar resonances within a particle can lead to either trapping or antitrapping, depending on the system parameters. At the same time, the recoil force generates a significant azimuthal component along with an angulardependent radial force. Those contributions enable enhancing either trapping or antitrapping and also introduce bending reactions. These effects are linked to the far-field multipole interference and, specifically, to asymmetric scattering patterns. The latter approach is extremely useful, as it allows assessing the nature of optomechanical motion by observing far-fields. Multipolar engineering of optical forces, being quite a general approach, is not necessarily linked to simple spherical shapes and paves a way to new possibilities in microfluidic applications, including sorting and microassembly
publishDate 2021
dc.date.none.fl_str_mv 2021
2021-07-16
dc.type.none.fl_str_mv research article
http://purl.org/coar/resource_type/c_2df8fbb1
VoR
http://purl.org/coar/version/c_970fb48d4fbd8a85
dc.type.openaire.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.none.fl_str_mv http://hdl.handle.net/10486/704277
https://dx.doi.org/10.1002/adpr.202100082
url http://hdl.handle.net/10486/704277
https://dx.doi.org/10.1002/adpr.202100082
dc.language.none.fl_str_mv Inglés
eng
language_invalid_str_mv Inglés
language eng
dc.rights.none.fl_str_mv open access
http://purl.org/coar/access_right/c_abf2
dc.rights.openaire.fl_str_mv info:eu-repo/semantics/openAccess
rights_invalid_str_mv open access
http://purl.org/coar/access_right/c_abf2
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Wiley-VCH Verlag
publisher.none.fl_str_mv Wiley-VCH Verlag
dc.source.none.fl_str_mv reponame:Biblos-e Archivo. Repositorio Institucional de la UAM
instname:Universidad Autónoma de Madrid
instname_str Universidad Autónoma de Madrid
reponame_str Biblos-e Archivo. Repositorio Institucional de la UAM
collection Biblos-e Archivo. Repositorio Institucional de la UAM
repository.name.fl_str_mv
repository.mail.fl_str_mv
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