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Single nanohole and photoluminescence: nanolocalized and wavelength tunable light source
Author(s) -
Pavel N. Melentiev,
Т. В. Константинова,
A. E. Afanasiev,
A. A. Kuzin,
A. S. Baturin,
V. I. Balykin
Publication year - 2012
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.20.019474
Subject(s) - photoluminescence , narrowband , materials science , optics , wavelength , optoelectronics , light source , photon counting , broadband , radiation , diffraction , photon , physics
We are first to demonstrate a broadband, nanometer-scale, and background-free light source that is based on photoluminescence of a single nanohole in an Au film. We show that a nanohole with a diameter of as small as 20 nm in a 200-nm thick Au film can be used for this purpose. Further development of the localized source that involves the use of a photon-crystal microcavity with a Q-factor of 100 makes it possible to create a 30-fold enhanced, narrowband tunable light source and with a narrow directivity of the radiation.

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