Plasmonic gap mode nanocavities at telecommunication wavelengths

Pi Ju Cheng, Chen Ya Weng, Shu Wei Chang, Tzy Rong Lin, Chung-Hao Tien

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

We analyze a plasmonic gap-mode Fabry-Perot nanocavity containing a metallic nanowire. The proper choice of the cladding layer brings about a decent confinement inside the active region for the fundamental and first-order plasmonic gap modes. We numerically extract the reflectivity of the fundamental and first-order mode and obtain the optical field inside the cavity. We also study the dependence of the reflectivity on the thickness of Ag reflectors and show that a decent reflectivity above 90 % is achievable. For such cavities with a cavity length approaching 1.5 μm, a quality factor near 150 and threshold gain lower than 1500 cmâ 1 are achievable.

Original languageEnglish
Title of host publicationPhysics and Simulation of Optoelectronic Devices XXII
PublisherSPIE
ISBN (Print)9780819498939
DOIs
StatePublished - 1 Jan 2014
EventPhysics and Simulation of Optoelectronic Devices XXII - San Francisco, CA, United States
Duration: 3 Feb 20146 Feb 2014

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume8980
ISSN (Print)0277-786X
ISSN (Electronic)1996-756X

Conference

ConferencePhysics and Simulation of Optoelectronic Devices XXII
CountryUnited States
CitySan Francisco, CA
Period3/02/146/02/14

Keywords

  • Nanotechnology
  • Semiconductor lasers
  • Surface plasmons

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