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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Editor: James C. Wyant
  • Vol. 47, Iss. 31 — Nov. 1, 2008
  • pp: 5848–5852

Double optical limiting in gold nanoshell: tuning from visible to infrared region by shell thickness

Jian Zhu  »View Author Affiliations


Applied Optics, Vol. 47, Issue 31, pp. 5848-5852 (2008)
http://dx.doi.org/10.1364/AO.47.005848


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Abstract

Because of surface plasmon resonance (SPR) induced nonlinear absorption, there are two optical limiting bands in gold nanoshells. The longer and shorter wavelength optical limiting bands correspond to the symmetric and antisymmetric coupling resonance absorption modes, respectively. Theoretical calculations based on quasi-static approximation show that the longer wavelength optical limiting band red shifts from the visible to the infrared region by decreasing the shell thickness. A mechanism based on polarization direction of a local electric field in a gold shell is investigated to describe the wavelength shift of the optical limiting band.

© 2008 Optical Society of America

OCIS Codes
(160.4330) Materials : Nonlinear optical materials
(190.4400) Nonlinear optics : Nonlinear optics, materials
(240.6680) Optics at surfaces : Surface plasmons

ToC Category:
Nonlinear Optics

History
Original Manuscript: July 17, 2008
Revised Manuscript: September 19, 2008
Manuscript Accepted: September 27, 2008
Published: October 28, 2008

Citation
Jian Zhu, "Double optical limiting in gold nanoshell: tuning from visible to infrared region by shell thickness," Appl. Opt. 47, 5848-5852 (2008)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-47-31-5848

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