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Channel competition in emitter-plasmon coupling
Zhejiang Univ, Ctr Opt & Electromagnet Res, State Key Lab Modern Opt Instrumentat, Natl Engn Res Ctr Opt Instrumentat,JORCEP,Coll Op, Hangzhou 310058, Zhejiang, Peoples R China..
Zhejiang Univ, Ctr Opt & Electromagnet Res, State Key Lab Modern Opt Instrumentat, Natl Engn Res Ctr Opt Instrumentat,JORCEP,Coll Op, Hangzhou 310058, Zhejiang, Peoples R China.;Huazhong Univ Sci & Technol, Sch Phys, Wuhan 430074, Hubei, Peoples R China..
South China Normal Univ, Ctr Opt & Electromagnet Res, ZJU SCNU Joint Ctr Photon, South China Acad Adv Optoelect, Guangzhou 510006, Guangdong, Peoples R China..ORCID iD: 0000-0002-5837-0122
Zhejiang Univ, Ctr Opt & Electromagnet Res, State Key Lab Modern Opt Instrumentat, Natl Engn Res Ctr Opt Instrumentat,JORCEP,Coll Op, Hangzhou 310058, Zhejiang, Peoples R China..
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2019 (English)In: Optics Express, ISSN 1094-4087, E-ISSN 1094-4087, Vol. 27, no 21, p. 30893-30908Article in journal (Refereed) Published
Abstract [en]

When an emitter is close to a plasmonic nanoantenna, besides coupling to the dipolar antenna mode, the emitter also considerably couples to a superposition of the high-order modes, referred to as a pseudomode. We comprehensively investigate the differences between the dipolar mode channel and the pseudomode channel in a representative system where a dipole emitter couples to a silver nanorod. The two channels are shown to be distinct in their mechanisms, characteristics (including chromatic dispersion and field distribution), and dependences on system parameters (including emitter-antenna distance, antenna geometry, and material loss). The study provides physical insight and reveals important design rules for controlling the competition between the two channels.

Place, publisher, year, edition, pages
OPTICAL SOC AMER , 2019. Vol. 27, no 21, p. 30893-30908
National Category
Electrical Engineering, Electronic Engineering, Information Engineering
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URN: urn:nbn:se:kth:diva-263344DOI: 10.1364/OE.27.030893ISI: 000489954500125PubMedID: 31684331Scopus ID: 2-s2.0-85073614226OAI: oai:DiVA.org:kth-263344DiVA, id: diva2:1371375
Note

QC 20191119

Available from: 2019-11-19 Created: 2019-11-19 Last updated: 2020-03-09Bibliographically approved

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He, Sailing

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