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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 19, Iss. 8 — Apr. 11, 2011
  • pp: 7068–7076

Visible near-infrared light scattering of single silver split-ring structure made by nanosphere lithography

Toshihiro Okamoto, Tetsuya Fukuta, Shuji Sato, Masanobu Haraguchi, and Masuo Fukui  »View Author Affiliations


Optics Express, Vol. 19, Issue 8, pp. 7068-7076 (2011)
http://dx.doi.org/10.1364/OE.19.007068


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Abstract

We succeeded in making a silver split-ring (SR) structure of approximately 130 nm in diameter on a glass substrate using a nanosphere lithography technique. The light scattering spectrum in visible near-infrared region of a single, isolated SR was measured using a microscope spectroscopy optical system. The electromagnetic field enhancement spectrum and distribution of the SR structure were simulated by the finite-difference time-domain method, and the excitation modes were clarified. The long wavelength peak in the light scattering spectra corresponded to a fundamental LC resonance mode excited by an incident electric field. It was shown that a single SR structure fabricated as abovementioned can operate as a resonator and generate a magnetic dipole.

© 2011 OSA

OCIS Codes
(140.4780) Lasers and laser optics : Optical resonators
(290.5820) Scattering : Scattering measurements
(300.0300) Spectroscopy : Spectroscopy
(160.3918) Materials : Metamaterials
(220.4241) Optical design and fabrication : Nanostructure fabrication
(250.5403) Optoelectronics : Plasmonics

ToC Category:
Metamaterials

History
Original Manuscript: January 5, 2011
Revised Manuscript: March 5, 2011
Manuscript Accepted: March 13, 2011
Published: March 29, 2011

Virtual Issues
Vol. 6, Iss. 5 Virtual Journal for Biomedical Optics

Citation
Toshihiro Okamoto, Tetsuya Fukuta, Shuji Sato, Masanobu Haraguchi, and Masuo Fukui, "Visible near-infrared light scattering of single silver split-ring structure made by nanosphere lithography," Opt. Express 19, 7068-7076 (2011)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-19-8-7068


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