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Article: Photonic Nanojet Mediated Backaction of Dielectric Microparticles
Title | Photonic Nanojet Mediated Backaction of Dielectric Microparticles |
---|---|
Authors | |
Keywords | optical manipulation backaction force photonic nanojet negative optical force dielectric particle |
Issue Date | 2020 |
Publisher | American Chemical Society. The Journal's web site is located at http://pubs.acs.org/toc/apchd5/2/4 |
Citation | ACS Photonics, 2020, v. 7 n. 6, p. 1483-1490 How to Cite? |
Abstract | Optical radiation force points to the same direction as the photon flux, while the direction reversal is quite challenging and necessitates special efforts. Herein, we present the observation of a photonic nanojet-mediated backaction of dielectric particles owing to the local heating of solvent molecules inside the nanojet in a purely dielectric system. Such backaction has been verified to be photothermal, without the influence from thermally induced turbulence. Our findings have been theoretically corroborated by statistical analysis on the size-dependent force and speed. In addition to the increase with laser power, the backaction force is a competing effect between the absorption and thermal conductivity of the immersion medium and is also affected by the photothermally raised background temperature. The backaction force exerts on dielectric particles with a broad size range. Since most biological particles are dielectric, with a refractive index greater than that for the surrounding medium, this work could inspire applications in biophotonics, such as cell sorting and classification. |
Persistent Identifier | http://hdl.handle.net/10722/290173 |
ISSN | 2023 Impact Factor: 6.5 2023 SCImago Journal Rankings: 2.089 |
ISI Accession Number ID |
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Ren, YX | - |
dc.contributor.author | Zeng, X | - |
dc.contributor.author | Zhou, LM | - |
dc.contributor.author | Kong, C | - |
dc.contributor.author | Mao, H | - |
dc.contributor.author | Qiu, CW | - |
dc.contributor.author | Tsia, KK | - |
dc.contributor.author | Wong, KKY | - |
dc.date.accessioned | 2020-10-22T08:23:04Z | - |
dc.date.available | 2020-10-22T08:23:04Z | - |
dc.date.issued | 2020 | - |
dc.identifier.citation | ACS Photonics, 2020, v. 7 n. 6, p. 1483-1490 | - |
dc.identifier.issn | 2330-4022 | - |
dc.identifier.uri | http://hdl.handle.net/10722/290173 | - |
dc.description.abstract | Optical radiation force points to the same direction as the photon flux, while the direction reversal is quite challenging and necessitates special efforts. Herein, we present the observation of a photonic nanojet-mediated backaction of dielectric particles owing to the local heating of solvent molecules inside the nanojet in a purely dielectric system. Such backaction has been verified to be photothermal, without the influence from thermally induced turbulence. Our findings have been theoretically corroborated by statistical analysis on the size-dependent force and speed. In addition to the increase with laser power, the backaction force is a competing effect between the absorption and thermal conductivity of the immersion medium and is also affected by the photothermally raised background temperature. The backaction force exerts on dielectric particles with a broad size range. Since most biological particles are dielectric, with a refractive index greater than that for the surrounding medium, this work could inspire applications in biophotonics, such as cell sorting and classification. | - |
dc.language | eng | - |
dc.publisher | American Chemical Society. The Journal's web site is located at http://pubs.acs.org/toc/apchd5/2/4 | - |
dc.relation.ispartof | ACS Photonics | - |
dc.rights | This document is the Accepted Manuscript version of a Published Work that appeared in final form in ACS Photonics, copyright © American Chemical Society after peer review and technical editing by the publisher. To access the final edited and published work see https://pubs.acs.org/doi/10.1021/acsphotonics.0c00242 | - |
dc.subject | optical manipulation | - |
dc.subject | backaction force | - |
dc.subject | photonic nanojet | - |
dc.subject | negative optical force | - |
dc.subject | dielectric particle | - |
dc.title | Photonic Nanojet Mediated Backaction of Dielectric Microparticles | - |
dc.type | Article | - |
dc.identifier.email | Ren, YX: yxren@hku.hk | - |
dc.identifier.email | Tsia, KK: tsia@hku.hk | - |
dc.identifier.email | Wong, KKY: kywong@eee.hku.hk | - |
dc.identifier.authority | Tsia, KK=rp01389 | - |
dc.identifier.authority | Wong, KKY=rp00189 | - |
dc.description.nature | postprint | - |
dc.identifier.doi | 10.1021/acsphotonics.0c00242 | - |
dc.identifier.scopus | eid_2-s2.0-85087396690 | - |
dc.identifier.hkuros | 316957 | - |
dc.identifier.volume | 7 | - |
dc.identifier.issue | 6 | - |
dc.identifier.spage | 1483 | - |
dc.identifier.epage | 1490 | - |
dc.identifier.isi | WOS:000542931300018 | - |
dc.publisher.place | United States | - |
dc.identifier.issnl | 2330-4022 | - |