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dc.contributor.author송석호-
dc.date.accessioned2017-05-23T07:21:57Z-
dc.date.available2017-05-23T07:21:57Z-
dc.date.issued2015-09-
dc.identifier.citationAPPLIED PHYSICS LETTERS, v. 107, NO 12, Page. 121107-121107en_US
dc.identifier.issn0003-6951-
dc.identifier.issn1077-3118-
dc.identifier.urihttp://aip.scitation.org/doi/abs/10.1063/1.4931699-
dc.identifier.urihttp://hdl.handle.net/20.500.11754/27415-
dc.description.abstractThe plasmonic gain of a top-pumped active symmetric metal slab waveguide is investigated theoretically and experimentally. The structure consists of a thin Ag film cladded above and below by gain media (IR140-doped poly (methyl methacrylate)), and operating with long-range surface plasmon polaritons (LRSPPs) at near-infrared wavelengths. We consider the spatial distribution of the pump intensity and the position dependence of the dipole lifetime within the claddings when computing the LRSPP gain. We find that the bottom cladding provides significant gain to the LRSPP, despite the low pump transmittance through the Ag film, as long as the pump intensity is strong enough to saturate the gain material (similar to 4MW/cm(2)). In this situation, the LRSPP gain is doubled compared to the case where the top cladding only is active. The LRSPP gain was measured in a fabricated structure using the variable stripe length method, yielding g(mod) = 16.7 cm(-1) at a pump intensity of similar to 4MW/cm(2). The measured LRSPP gain agrees very well with the computed value, implying that the bottom cladding provides significant gain to the mode. Active plasmonic devices based on the symmetric dielectric-metal-dielectric structure can be significantly more efficient by using gain layers as both the top and bottom claddings. (C) 2015 AIP Publishing LLC.en_US
dc.description.sponsorshipUseful discussions with Elham Karami Keshmarzi, Ewa Lisicka-Skrzek, and Anthony Olivieri are gratefully acknowledged. This research was supported in part by the Basic Science Research Program (No. NRF-2015R1A2A2A01007553) and by the Global Frontier Program through the National Research Foundation (NRF) of Korea funded by the Ministry of Science, ICT & Future Planning (No. NRF-2014M3A6B3063708). Partial funding was also provided by the Natural Sciences and Engineering Research Council of Canada.en_US
dc.language.isoenen_US
dc.publisherAMER INST PHYSICSen_US
dc.subjectAMPLIFIED SPONTANEOUS EMISSIONen_US
dc.subjectLASERSen_US
dc.titlePlasmonic gain in long-range surface plasmon polariton waveguides bounded symmetrically by dye-doped polymeren_US
dc.typeArticleen_US
dc.relation.no12-
dc.relation.volume107-
dc.identifier.doi10.1063/1.4931699-
dc.relation.page121107-121107-
dc.relation.journalAPPLIED PHYSICS LETTERS-
dc.contributor.googleauthorHahn, Choloong-
dc.contributor.googleauthorSong, Seok Ho-
dc.contributor.googleauthorOh, Cha Hwan-
dc.contributor.googleauthorBerini, Pierre-
dc.relation.code2015002886-
dc.sector.campusS-
dc.sector.daehakCOLLEGE OF NATURAL SCIENCES[S]-
dc.sector.departmentDEPARTMENT OF PHYSICS-
dc.identifier.pidshsong-
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COLLEGE OF NATURAL SCIENCES[S](자연과학대학) > PHYSICS(물리학과) > Articles
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