Observation of ultra-narrow band plasmon induced transparency based on large-area hybrid plasmon-waveguide systems

Jing Zhang, Wenli Bai, Likang Cai, Yun Xu, Guofeng Song, Qiaoqiang Gan

Research output: Contribution to journalArticlepeer-review

69 Scopus citations

Abstract

We report the observation of an ultra-narrow band plasmon induced transparency resonance which is realized in a large area hybrid plasmon-waveguide system consisting of a gold nanowire array embedded in a slab waveguide. Due to the destructive interference between optical modes supported by the hybrid system, an ultra-narrow plasmon induced transparency resonance with a bandwidth of 8 nm at the wavelength of 966 nm was obtained (i.e., ∼1/120 of the peak wavelength at the incident angle of 60). The group velocity is estimated to be ∼76, which is promising for miniaturized slow-light components. © 2011 American Institute of Physics.
Original languageEnglish (US)
JournalApplied Physics Letters
Volume99
Issue number18
DOIs
StatePublished - Oct 31 2011
Externally publishedYes

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

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