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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 16, Iss. 13 — Jun. 23, 2008
  • pp: 9580–9586

The phase-response effect of size-dependent optical enhancement in a single nanoparticle

Chen-Han Huang, Hsing-Ying Lin, Hsiang-Chen Chui, Yun-Chiang Lan, and Shi-Wei Chu  »View Author Affiliations

Optics Express, Vol. 16, Issue 13, pp. 9580-9586 (2008)

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We demonstrate detailed simulations and experiments of near-field phase-response in a single silver nanoparticle. The plasmon-photon interaction is directly observed in the vicinity of silver nanoparticles through a near-field scanning optical microscope (NSOM). Our results manifest the correlation of phase-response and size-dependent optical enhancement. Detailed interference behaviors between optical excitation and plasmon mediated re-radiation are revealed on a single particle basis. This observation facilitates nano-applications in controlling the spatial distribution of surface plasmon (SP) modes by means of nanostructures.

© 2008 Optical Society of America

OCIS Codes
(240.6680) Optics at surfaces : Surface plasmons
(180.4243) Microscopy : Near-field microscopy
(310.6628) Thin films : Subwavelength structures, nanostructures

ToC Category:

Original Manuscript: April 11, 2008
Revised Manuscript: June 6, 2008
Manuscript Accepted: June 8, 2008
Published: June 13, 2008

Chen-Han Huang, Hsing-Ying Lin, Hsiang-Chen Chui, Yun-Chiang Lan, and Shi-Wei Chu, "The phase-response effect of size-dependent optical enhancement in a single nanoparticle," Opt. Express 16, 9580-9586 (2008)

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