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Optical Materials Express

Optical Materials Express

  • Editor: David J. Hagan
  • Vol. 2, Iss. 9 — Sep. 1, 2012
  • pp: 1226–1235

Unusual optical properties of the Au/Ag alloy at the matching mole fraction

Yoshiaki Nishijima and Shunsuke Akiyama  »View Author Affiliations

Optical Materials Express, Vol. 2, Issue 9, pp. 1226-1235 (2012)

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Optical properties of localized surface plasmon resonance (LSPR) in Au/Ag alloy were investigated experimentally and numerically. It was found that LSPR spectra of nanostructures at near-infrared wavelengths changed drastically at the 50% Au/Ag mole fraction. Both the experimental results and the finite-difference time-domain simulations using experimentally obtained n, k values showed a similar tendency. At 50% molar fraction, electromagnetic field enhancement reached almost the same value as in pure Au.

© 2012 OSA

OCIS Codes
(240.6680) Optics at surfaces : Surface plasmons
(160.4236) Materials : Nanomaterials
(220.4241) Optical design and fabrication : Nanostructure fabrication
(250.5403) Optoelectronics : Plasmonics

ToC Category:

Original Manuscript: May 2, 2012
Revised Manuscript: July 6, 2012
Manuscript Accepted: August 8, 2012
Published: August 9, 2012

Yoshiaki Nishijima and Shunsuke Akiyama, "Unusual optical properties of the Au/Ag alloy at the matching mole fraction," Opt. Mater. Express 2, 1226-1235 (2012)

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