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Nanoscale Surface Plasmon Polariton Disk Resonators, a Theoretical Analysis
KTH, School of Information and Communication Technology (ICT), Materials- and Nano Physics, Optics and Photonics, OFO. Zhejiang University, Hangzhou, China. (FMI FOTONIK O MIKROVÅGSTEKNIK)ORCID iD: 0000-0003-3618-6049
KTH, School of Information and Communication Technology (ICT), Materials- and Nano Physics, Optics and Photonics, OFO. Zhejiang University, Hangzhou, China. (FMI FOTONIK O MIKROVÅGSTEKNIK)ORCID iD: 0000-0001-5967-2651
KTH, School of Information and Communication Technology (ICT), Materials- and Nano Physics, Optics and Photonics, OFO. Zhejiang University, Hangzhou, China. (FMI FOTONIK O MIKROVÅGSTEKNIK)
2016 (English)In: IEEE Journal of Selected Topics in Quantum Electronics, ISSN 1077-260X, E-ISSN 1558-4542, Vol. 22, no 2Article in journal (Refereed) PublishedText
Abstract [en]

We analyze whispering gallery-type disk resonators with radii down to 50 nm. Single interface waveguiding is accomplished by a plasmonic-dielectric interface operating near the surface plasmon polariton (SPP) resonance, employing a hypothetical material with lower loss than what is currently available in metals or negative permittivity media. The disk is immersed in a second dielectric, nonresonant to the plasmonic medium. Due to the high effective index of the disk mode and the concomitant low radiation losses, the quality (Q) values of the resonator are solely determined by material losses, in contrast to more conventional nanoscale resonators. We calculate the dependence of the effective indices of the guided mode, the Q values of absorption and radiation, and the Purcell factor on the deviation from the SPP resonance.

Place, publisher, year, edition, pages
IEEE , 2016. Vol. 22, no 2
Keyword [en]
Integrated optics, optical resonators, plasmons
National Category
Other Electrical Engineering, Electronic Engineering, Information Engineering
Identifiers
URN: urn:nbn:se:kth:diva-180910DOI: 10.1109/JSTQE.2015.2479924ISI: 000364842500001ScopusID: 2-s2.0-84946761408OAI: oai:DiVA.org:kth-180910DiVA: diva2:898680
Funder
Swedish Research Council
Note

QC 20160129

Available from: 2016-01-29 Created: 2016-01-25 Last updated: 2016-01-29Bibliographically approved

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Sun, XuWosinski, LechThylén, Lars
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