eprintid: 1507864
rev_number: 28
eprint_status: archive
userid: 608
dir: disk0/01/50/78/64
datestamp: 2016-08-26 11:27:53
lastmod: 2021-09-19 23:48:24
status_changed: 2016-08-26 11:27:53
type: article
metadata_visibility: show
creators_name: Irrera, A
creators_name: Magazzù, A
creators_name: Artoni, P
creators_name: Simpson, SH
creators_name: Hanna, S
creators_name: Jones, PH
creators_name: Priolo, F
creators_name: Gucciardi, PG
creators_name: Maragò, OM
title: Photonic Torque Microscopy of the Nonconservative Force Field for Optically Trapped Silicon Nanowires
ispublished: pub
divisions: UCL
divisions: B04
divisions: C06
divisions: F60
keywords: Brownian motion, Optical tweezers, nonequilibrium dynamics, silicon nanowires
note: Copyright © 2016 American Chemical Society. This document is the Accepted Manuscript version of a Published Work that appeared in final form in Nano Letters, copyright © American Chemical Society after peer review and technical editing by the publisher. To access the final edited and published work see http://pubs.acs.org/doi/abs/10.1021/acs.nanolett.6b01059
abstract: We measure, by photonic torque microscopy, the nonconservative rotational motion arising from the transverse components of the radiation pressure on optically trapped, ultrathin silicon nanowires. Unlike spherical particles, we find that nonconservative effects have a significant influence on the nanowire dynamics in the trap. We show that the extreme shape of the trapped nanowires yields a transverse component of the radiation pressure that results in an orbital rotation of the nanowire about the trap axis. We study the resulting motion as a function of optical power and nanowire length, discussing its size-scaling behavior. These shape-dependent nonconservative effects have implications for optical force calibration and optomechanics with levitated nonspherical particles.
date: 2016-07-13
date_type: published
official_url: http://dx.doi.org/10.1021/acs.nanolett.6b01059
oa_status: green
full_text_type: other
language: eng
primo: open
primo_central: open_green
article_type_text: Journal Article
verified: verified_manual
elements_id: 1135992
doi: 10.1021/acs.nanolett.6b01059
lyricists_name: Jones, Philip
lyricists_id: PHJON02
actors_name: Jones, Philip
actors_id: PHJON02
actors_role: owner
full_text_status: public
publication: Nano Letters
volume: 16
number: 7
pagerange: 4181-4188
event_location: United States
issn: 1530-6992
citation:        Irrera, A;    Magazzù, A;    Artoni, P;    Simpson, SH;    Hanna, S;    Jones, PH;    Priolo, F;         ... Maragò, OM; + view all <#>        Irrera, A;  Magazzù, A;  Artoni, P;  Simpson, SH;  Hanna, S;  Jones, PH;  Priolo, F;  Gucciardi, PG;  Maragò, OM;   - view fewer <#>    (2016)    Photonic Torque Microscopy of the Nonconservative Force Field for Optically Trapped Silicon Nanowires.                   Nano Letters , 16  (7)   pp. 4181-4188.    10.1021/acs.nanolett.6b01059 <https://doi.org/10.1021/acs.nanolett.6b01059>.       Green open access   
 
document_url: https://discovery.ucl.ac.uk/id/eprint/1507864/1/Irrera%20et%20al%202016%20Photonic%20Torque%20Microscopy%20of%20the%20Nonconservative%20Force%20Field%20for%20Optically%20Trapped%20Silicon%20Nanowires.pdf