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Applied Optics

Applied Optics


  • Editor: Joseph N. Mait
  • Vol. 48, Iss. 26 — Sep. 10, 2009
  • pp: 4899–4903

Resonant-wavelength tuning of a nanocavity by subnanometer control of a two-dimensional silicon-based photonic crystal slab structure

Bong-Shik Song, Takuji Nagashima, Takashi Asano, and Susumu Noda  »View Author Affiliations

Applied Optics, Vol. 48, Issue 26, pp. 4899-4903 (2009)

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We demonstrate fine tuning of the resonant wavelength of a nanocavity in a two-dimensional silicon-based photonic crystal slab structure by subnanometer control of the airhole diameter and slab thickness. Theoretical investigation shows that the resonant wavelength depends linearly on the latter two parameters. To experimentally demonstrate the fine tuning of the resonant wavelength, we control these parameters through chemical processes. The resonant-wavelength shift is tuned to 3.25 and 0.36 nm by use of two oxidizing processes. The latter shift, which corresponds to a 0.14 nm thick silicon layer, is considerably smaller than shifts achieved in previous studies.

© 2009 Optical Society of America

OCIS Codes
(140.3945) Lasers and laser optics : Microcavities
(350.4238) Other areas of optics : Nanophotonics and photonic crystals
(130.5296) Integrated optics : Photonic crystal waveguides
(050.5298) Diffraction and gratings : Photonic crystals

ToC Category:
Diffraction and Gratings

Original Manuscript: May 18, 2009
Revised Manuscript: July 29, 2009
Manuscript Accepted: August 9, 2009
Published: September 1, 2009

Bong-Shik Song, Takuji Nagashima, Takashi Asano, and Susumu Noda, "Resonant-wavelength tuning of a nanocavity by subnanometer control of a two-dimensional silicon-based photonic crystal slab structure," Appl. Opt. 48, 4899-4903 (2009)

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