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Journal of the Optical Society of America B

Journal of the Optical Society of America B

| OPTICAL PHYSICS

  • Editor: Henry van Driel
  • Vol. 29, Iss. 12 — Dec. 1, 2012
  • pp: 3211–3217

Resonant wavelength determination of ovoid metallic nanoparticle pair

Peng Liu, Juan Liu, Xingxing Zhao, Jianjie Dong, Jinghui Xie, and Yongtian Wang  »View Author Affiliations


JOSA B, Vol. 29, Issue 12, pp. 3211-3217 (2012)
http://dx.doi.org/10.1364/JOSAB.29.003211


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Abstract

An end-to-end ovoid metallic nanoparticle pair is introduced, and its resonant wavelength can be determined by the particle geometry, particle separation, outside medium, and metallic material. The resonant peak shifts as a function of particle separation under different adjacent ends’ aspect ratios obey a universal scale after a normalization process. The scaled peak shifts are exponentially fitted, and the two fitting coefficients are obtained separately for the nanoparticle pair made of silver, gold, and aluminum immersed in several media. Equations are found in which the fitting coefficients can be derived from the medium and metallic refractive index. These equations are used to predict the resonant wavelength of the nanoparticle pair made of gallium in various media.

© 2012 Optical Society of America

OCIS Codes
(290.5850) Scattering : Scattering, particles
(160.4236) Materials : Nanomaterials

ToC Category:
Materials

History
Original Manuscript: July 25, 2012
Revised Manuscript: September 28, 2012
Manuscript Accepted: October 9, 2012
Published: November 5, 2012

Citation
Peng Liu, Juan Liu, Xingxing Zhao, Jianjie Dong, Jinghui Xie, and Yongtian Wang, "Resonant wavelength determination of ovoid metallic nanoparticle pair," J. Opt. Soc. Am. B 29, 3211-3217 (2012)
http://www.opticsinfobase.org/josab/abstract.cfm?URI=josab-29-12-3211

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