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      Plexcitonic crystals: A tunable platform for light-matter interactions

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      Author(s)
      Karademir, E.
      Balci, S.
      Kocabas, C.
      Aydınlı, Atilla
      Date
      2014
      Source Title
      Optics Express
      Print ISSN
      10944087
      Publisher
      Optical Society of American (OSA)
      Volume
      22
      Issue
      18
      Pages
      21912 - 21920
      Language
      English
      Type
      Article
      Item Usage Stats
      186
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      170
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      Abstract
      Coupled states of surface plasmon polaritons (SPPs) and excitons are collectively called plexcitons [Nano Lett. 8, 3481 (2008)]. Plexcitonics is an emerging field of research aiming to control light-matter interaction at the nanometer length scale using coupled pairs of surface-plasmons and excitons. Ability to control the interaction between localized excitons and propagating surface-plasmons is important for realization of new photonic devices. In this letter, we report plexcitonic crystals that yield direction-dependent plasmon-exciton coupling. We have fabricated one- and two-dimensional plexcitonic crystals on periodically corrugated silver surfaces, which are loaded with J-aggregate complexes. We show that plasmon-exciton coupling is blocked for some crystal directions when exciton energy falls inside the plasmonic band gap of the periodically corrugated metallic surface. ©2014 Optical Society of America.
      Keywords
      Light-matter interactions
      Permalink
      http://hdl.handle.net/11693/26564
      Published Version (Please cite this version)
      http://dx.doi.org/10.1364/OE.22.021912
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      • Department of Physics 2551
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