Optical Manipulation and Spectroscopy of Silicon Nanoparticles Exhibiting Dielectric Resonances

Andres-Arroyo, A; Gupta, B; Wang, F; Gooding, JJ; Reece, PJ

Optical Manipulation and Spectroscopy of Silicon Nanoparticles Exhibiting Dielectric Resonances

Andres-Arroyo, A Gupta, B Wang, F

Gooding, JJ Reece, PJ

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Publication Type:: Journal Article
Citation:: Nano Letters, 2016, 16 (3), pp. 1903 - 1910
Issue Date:: 2016-03-09

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Field	Value	Language
dc.contributor.author	Andres-Arroyo, A	en_US
dc.contributor.author	Gupta, B	en_US
dc.contributor.author	Wang, F https://orcid.org/0000-0001-7403-3305	en_US
dc.contributor.author	Gooding, JJ	en_US
dc.contributor.author	Reece, PJ	en_US
dc.date.issued	2016-03-09	en_US
dc.identifier.citation	Nano Letters, 2016, 16 (3), pp. 1903 - 1910	en_US
dc.identifier.issn	1530-6984	en_US
dc.identifier.uri	http://hdl.handle.net/10453/122839
dc.description.abstract	© 2016 American Chemical Society. We demonstrate that silicon (Si) nanoparticles with scattering properties exhibiting strong dielectric resonances can be successfully manipulated using optical tweezers. The large dielectric constant of Si has a distinct advantage over conventional colloidal nanoparticles in that it leads to enhanced trapping forces without the heating associated with metallic nanoparticles. Further, the spectral features of the trapped nanoparticles provide a unique marker for probing size, shape, orientation and local dielectric environment. We exploit these properties to investigate the trapping dynamics of Si nanoparticles with different dimensions ranging from 50 to 200 nm and aspect ratios between 0.4 and 2. The unique combination of spectral and trapping properties make Si nanoparticles an ideal system for delivering directed nanoscale sensing in a range of potential applications.	en_US
dc.relation.ispartof	Nano Letters	en_US
dc.relation.isbasedon	10.1021/acs.nanolett.5b05057	en_US
dc.subject.classification	Nanoscience & Nanotechnology	en_US
dc.title	Optical Manipulation and Spectroscopy of Silicon Nanoparticles Exhibiting Dielectric Resonances	en_US
dc.type	Journal Article
utslib.citation.volume	3	en_US
utslib.citation.volume	16	en_US
utslib.for	0205 Optical Physics	en_US
pubs.embargo.period	Not known	en_US
pubs.organisational-group	/University of Technology Sydney
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology/School of Electrical and Data Engineering
pubs.organisational-group	/University of Technology Sydney/Strength - IBMD - Initiative for Biomedical Devices
utslib.copyright.status	closed_access
pubs.issue	3	en_US
pubs.publication-status	Published	en_US
pubs.volume	16	en_US

Abstract:

© 2016 American Chemical Society. We demonstrate that silicon (Si) nanoparticles with scattering properties exhibiting strong dielectric resonances can be successfully manipulated using optical tweezers. The large dielectric constant of Si has a distinct advantage over conventional colloidal nanoparticles in that it leads to enhanced trapping forces without the heating associated with metallic nanoparticles. Further, the spectral features of the trapped nanoparticles provide a unique marker for probing size, shape, orientation and local dielectric environment. We exploit these properties to investigate the trapping dynamics of Si nanoparticles with different dimensions ranging from 50 to 200 nm and aspect ratios between 0.4 and 2. The unique combination of spectral and trapping properties make Si nanoparticles an ideal system for delivering directed nanoscale sensing in a range of potential applications.

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http://hdl.handle.net/10453/122839