Nanoscale plasmonic resonators with high Purcell factor: Spontaneous and stimulated emission

Goldys, EM; Deng, W; Calander, NP; Drozdowicz-Tomsia, K; Jin, D

Nanoscale plasmonic resonators with high Purcell factor: Spontaneous and stimulated emission

Goldys, EM Deng, W Calander, NP Drozdowicz-Tomsia, K Jin, D

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Publication Type:: Conference Proceeding
Citation:: Progress in Biomedical Optics and Imaging - Proceedings of SPIE, 2011, 7909
Issue Date:: 2011-03-21

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Field	Value	Language
dc.contributor.author	Goldys, EM	en_US
dc.contributor.author	Deng, W	en_US
dc.contributor.author	Calander, NP	en_US
dc.contributor.author	Drozdowicz-Tomsia, K	en_US
dc.contributor.author	Jin, D https://orcid.org/0000-0003-1046-2666	en_US
dc.date.issued	2011-03-21	en_US
dc.identifier.citation	Progress in Biomedical Optics and Imaging - Proceedings of SPIE, 2011, 7909	en_US
dc.identifier.isbn	9780819484468	en_US
dc.identifier.issn	1605-7422	en_US
dc.identifier.uri	http://hdl.handle.net/10453/120192
dc.description.abstract	Plasmonic nanoparticles with silver cores and silica shells containing Eu fluorophores near the surface have been produced by wet chemistry method and their spontaneous emission properties characterized. Fluorescence amplification and decreased lifetime is interpreted within the Purcell framework which highlights the role of surface plasmon polariton modes of the nanoparticle. These behave as energy-storing resonators, with values of the Q factor between 50 and 170 at the fluorophore wavelength of 615 nm, and very small mode volumes, in the order of 104 nm3, producing high Purcell factors of over 4000. Comparison of experiment with theoretical calculations by using the Mie theory shows that the values of cavity Q factors are moderated by the nonradiative rate of fluorophore molecules close to metal. The criteria for laser action in such composite nanoparticles are also presented, including lasing frequencies and threshold gain. © 2011 SPIE.	en_US
dc.relation.ispartof	Progress in Biomedical Optics and Imaging - Proceedings of SPIE	en_US
dc.relation.isbasedon	10.1117/12.881170	en_US
dc.title	Nanoscale plasmonic resonators with high Purcell factor: Spontaneous and stimulated emission	en_US
dc.type	Conference Proceeding
utslib.citation.volume	7909	en_US
utslib.for	1007 Nanotechnology	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 Science
pubs.organisational-group	/University of Technology Sydney/Faculty of Science/School of Mathematical and Physical Sciences
pubs.organisational-group	/University of Technology Sydney/Strength - IBMD - Initiative for Biomedical Devices
utslib.copyright.status	open_access
pubs.publication-status	Published	en_US
pubs.volume	7909	en_US

Abstract:

Plasmonic nanoparticles with silver cores and silica shells containing Eu fluorophores near the surface have been produced by wet chemistry method and their spontaneous emission properties characterized. Fluorescence amplification and decreased lifetime is interpreted within the Purcell framework which highlights the role of surface plasmon polariton modes of the nanoparticle. These behave as energy-storing resonators, with values of the Q factor between 50 and 170 at the fluorophore wavelength of 615 nm, and very small mode volumes, in the order of 104 nm3, producing high Purcell factors of over 4000. Comparison of experiment with theoretical calculations by using the Mie theory shows that the values of cavity Q factors are moderated by the nonradiative rate of fluorophore molecules close to metal. The criteria for laser action in such composite nanoparticles are also presented, including lasing frequencies and threshold gain. © 2011 SPIE.

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