Pulling cylindrical particles using a soft-nonparaxial tractor beam

Abstract In order to pull objects towards the light source a single tractor beam inevitably needs to be strongly nonparaxial. This stringent requirement makes such a tractor beam somewhat hypothetical. Here we reveal that the cylindrical shape of dielectric particles can effectively mitigate the non...

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Autores principales:	Andrey Novitsky, Weiqiang Ding, Maoyan Wang, Dongliang Gao, Andrei V. Lavrinenko, Cheng-Wei Qiu
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2017
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/d43d099bab6547198dcfc211fdb0624e
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spelling	oai:doaj.org-article:d43d099bab6547198dcfc211fdb0624e2021-12-02T15:05:01ZPulling cylindrical particles using a soft-nonparaxial tractor beam10.1038/s41598-017-00735-22045-2322https://doaj.org/article/d43d099bab6547198dcfc211fdb0624e2017-04-01T00:00:00Zhttps://doi.org/10.1038/s41598-017-00735-2https://doaj.org/toc/2045-2322Abstract In order to pull objects towards the light source a single tractor beam inevitably needs to be strongly nonparaxial. This stringent requirement makes such a tractor beam somewhat hypothetical. Here we reveal that the cylindrical shape of dielectric particles can effectively mitigate the nonparaxiality requirements, reducing the incidence angle of the partial plane waves of the light beam down to 45° and even to 30° for respectively dipole and dipole-quadrupole objects. The optical pulling force attributed to the interaction of magnetic dipole and magnetic quadrupole moments of dielectric cylinders occurs due to the TE rather than TM polarization. Therefore, the polarization state of the incident beam can be utilized as an external control for switching between the pushing and pulling forces. The results have application values towards optical micromanipulation, transportation and sorting of targeted particles.Andrey NovitskyWeiqiang DingMaoyan WangDongliang GaoAndrei V. LavrinenkoCheng-Wei QiuNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 7, Iss 1, Pp 1-10 (2017)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Andrey Novitsky Weiqiang Ding Maoyan Wang Dongliang Gao Andrei V. Lavrinenko Cheng-Wei Qiu Pulling cylindrical particles using a soft-nonparaxial tractor beam
description	Abstract In order to pull objects towards the light source a single tractor beam inevitably needs to be strongly nonparaxial. This stringent requirement makes such a tractor beam somewhat hypothetical. Here we reveal that the cylindrical shape of dielectric particles can effectively mitigate the nonparaxiality requirements, reducing the incidence angle of the partial plane waves of the light beam down to 45° and even to 30° for respectively dipole and dipole-quadrupole objects. The optical pulling force attributed to the interaction of magnetic dipole and magnetic quadrupole moments of dielectric cylinders occurs due to the TE rather than TM polarization. Therefore, the polarization state of the incident beam can be utilized as an external control for switching between the pushing and pulling forces. The results have application values towards optical micromanipulation, transportation and sorting of targeted particles.
format	article
author	Andrey Novitsky Weiqiang Ding Maoyan Wang Dongliang Gao Andrei V. Lavrinenko Cheng-Wei Qiu
author_facet	Andrey Novitsky Weiqiang Ding Maoyan Wang Dongliang Gao Andrei V. Lavrinenko Cheng-Wei Qiu
author_sort	Andrey Novitsky
title	Pulling cylindrical particles using a soft-nonparaxial tractor beam
title_short	Pulling cylindrical particles using a soft-nonparaxial tractor beam
title_full	Pulling cylindrical particles using a soft-nonparaxial tractor beam
title_fullStr	Pulling cylindrical particles using a soft-nonparaxial tractor beam
title_full_unstemmed	Pulling cylindrical particles using a soft-nonparaxial tractor beam
title_sort	pulling cylindrical particles using a soft-nonparaxial tractor beam
publisher	Nature Portfolio
publishDate	2017
url	https://doaj.org/article/d43d099bab6547198dcfc211fdb0624e
work_keys_str_mv	AT andreynovitsky pullingcylindricalparticlesusingasoftnonparaxialtractorbeam AT weiqiangding pullingcylindricalparticlesusingasoftnonparaxialtractorbeam AT maoyanwang pullingcylindricalparticlesusingasoftnonparaxialtractorbeam AT donglianggao pullingcylindricalparticlesusingasoftnonparaxialtractorbeam AT andreivlavrinenko pullingcylindricalparticlesusingasoftnonparaxialtractorbeam AT chengweiqiu pullingcylindricalparticlesusingasoftnonparaxialtractorbeam
_version_	1718388985418481664

Pulling cylindrical particles using a soft-nonparaxial tractor beam

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