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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 20, Iss. 17 — Aug. 13, 2012
  • pp: 19395–19403

Terahertz spectroscopy of the reactive and radiative near-field zones of split ring resonator

F. Blanchard, K. Ooi, T. Tanaka, A. Doi, and K. Tanaka  »View Author Affiliations

Optics Express, Vol. 20, Issue 17, pp. 19395-19403 (2012)

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A terahertz microscope has been used to excite and observe the resonant modes of a single split ring resonator in the reactive and radiative near-field zones. The two lowest resonant modes of an isolated split ring resonator with their corresponding radiation patterns are reported; they showed good agreement to simulations. The passage from the reactive to radiative near-field zone is also discussed. Further, our result introduced a novel technique to perform terahertz time-domain spectroscopy of samples a few tens of micrometers in size by measuring the in-plane radiative near-field zone.

© 2012 OSA

OCIS Codes
(160.3918) Materials : Metamaterials
(180.4243) Microscopy : Near-field microscopy
(300.6495) Spectroscopy : Spectroscopy, teraherz

ToC Category:

Original Manuscript: June 1, 2012
Revised Manuscript: July 26, 2012
Manuscript Accepted: July 27, 2012
Published: August 9, 2012

F. Blanchard, K. Ooi, T. Tanaka, A. Doi, and K. Tanaka, "Terahertz spectroscopy of the reactive and radiative near-field zones of split ring resonator," Opt. Express 20, 19395-19403 (2012)

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