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Gear-like rotatable optical trapping with radial carpet beams
Optical tweezers have become a powerful tool in the fields of biology, soft condensed matter physics, and nanotechnology. Here, we report the use of recently introduced radial carpet beams (RCBs) in the optical tweezers setup to trap multiple particles. An RCB is produced by diffraction of a plane o...
Autores principales: | , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Nature Publishing Group UK
2020
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7366640/ https://www.ncbi.nlm.nih.gov/pubmed/32678205 http://dx.doi.org/10.1038/s41598-020-68695-8 |
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author | Bayat, Jamal Hajizadeh, Faegheh Khazaei, Ali Mohammad Rasouli, Saifollah |
author_facet | Bayat, Jamal Hajizadeh, Faegheh Khazaei, Ali Mohammad Rasouli, Saifollah |
author_sort | Bayat, Jamal |
collection | PubMed |
description | Optical tweezers have become a powerful tool in the fields of biology, soft condensed matter physics, and nanotechnology. Here, we report the use of recently introduced radial carpet beams (RCBs) in the optical tweezers setup to trap multiple particles. An RCB is produced by diffraction of a plane or Gaussian beam from an amplitude radial grating. Because of the radial symmetry of the grating, all the diffraction orders are propagated along the optical axis and are used for trapping. Based on the number of grating spokes, the produced RCB has a definite number of high-intensity spots on the transverse plane located over a circular ring. These high-intensity spots of the beam provide multi-traps when it passes through an objective lens and have enough gradient force to trap polystyrene and silica particles. Moreover, the diffracted light from the grating has this property to transfer the angular momentum. We show that the multi-trapped birefringent particles could rotate in their own traps when polarization of the trapping RCB to be circular. In addition, the orbital rotation of the particles is simply executable by manually rotating the grating in its plane around the optical axis. |
format | Online Article Text |
id | pubmed-7366640 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2020 |
publisher | Nature Publishing Group UK |
record_format | MEDLINE/PubMed |
spelling | pubmed-73666402020-07-17 Gear-like rotatable optical trapping with radial carpet beams Bayat, Jamal Hajizadeh, Faegheh Khazaei, Ali Mohammad Rasouli, Saifollah Sci Rep Article Optical tweezers have become a powerful tool in the fields of biology, soft condensed matter physics, and nanotechnology. Here, we report the use of recently introduced radial carpet beams (RCBs) in the optical tweezers setup to trap multiple particles. An RCB is produced by diffraction of a plane or Gaussian beam from an amplitude radial grating. Because of the radial symmetry of the grating, all the diffraction orders are propagated along the optical axis and are used for trapping. Based on the number of grating spokes, the produced RCB has a definite number of high-intensity spots on the transverse plane located over a circular ring. These high-intensity spots of the beam provide multi-traps when it passes through an objective lens and have enough gradient force to trap polystyrene and silica particles. Moreover, the diffracted light from the grating has this property to transfer the angular momentum. We show that the multi-trapped birefringent particles could rotate in their own traps when polarization of the trapping RCB to be circular. In addition, the orbital rotation of the particles is simply executable by manually rotating the grating in its plane around the optical axis. Nature Publishing Group UK 2020-07-16 /pmc/articles/PMC7366640/ /pubmed/32678205 http://dx.doi.org/10.1038/s41598-020-68695-8 Text en © The Author(s) 2020 Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/. |
spellingShingle | Article Bayat, Jamal Hajizadeh, Faegheh Khazaei, Ali Mohammad Rasouli, Saifollah Gear-like rotatable optical trapping with radial carpet beams |
title | Gear-like rotatable optical trapping with radial carpet beams |
title_full | Gear-like rotatable optical trapping with radial carpet beams |
title_fullStr | Gear-like rotatable optical trapping with radial carpet beams |
title_full_unstemmed | Gear-like rotatable optical trapping with radial carpet beams |
title_short | Gear-like rotatable optical trapping with radial carpet beams |
title_sort | gear-like rotatable optical trapping with radial carpet beams |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7366640/ https://www.ncbi.nlm.nih.gov/pubmed/32678205 http://dx.doi.org/10.1038/s41598-020-68695-8 |
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