Applied Physics B

, Volume 106, Issue 3, pp 577–581 | Cite as

Trapped rainbow techniques for spectroscopy on a chip and fluorescence enhancement

  • V. N. Smolyaninova
  • I. I. Smolyaninov
  • A. V. Kildishev
  • V. M. Shalaev
Article

Abstract

We report on the experimental demonstration of the broadband “trapped rainbow” in the visible range using arrays of adiabatically tapered optical nanowaveguides. Being a distinct case of the slow light phenomenon, the trapped rainbow effect could be applied to optical signal processing, sensing in such applications as spectroscopy on a chip, and to providing enhanced light-matter interactions. As an example of the latter applications, we have fabricated a large area array of tapered nanowaveguides, which exhibit broadband “trapped rainbow” effect. Considerable fluorescence enhancement due to slow light behavior in the array has been observed.

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Copyright information

© Springer-Verlag 2011

Authors and Affiliations

  • V. N. Smolyaninova
    • 1
  • I. I. Smolyaninov
    • 2
  • A. V. Kildishev
    • 3
  • V. M. Shalaev
    • 3
  1. 1.Department of Physics Astronomy and GeosciencesTowson UniversityTowsonUSA
  2. 2.Department of Electrical and Computer EngineeringUniversity of MarylandCollege ParkUSA
  3. 3.Birck Nanotechnology Centre, School of Electrical and Computer EngineeringPurdue UniversityWest LafayetteUSA

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