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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 20, Iss. 6 — Mar. 12, 2012
  • pp: 6197–6202

Terahertz probe for spectroscopy of sub-wavelength objects

Oleg Mitrofanov, Cyril C. Renaud, and Alwyn J. Seeds  »View Author Affiliations


Optics Express, Vol. 20, Issue 6, pp. 6197-6202 (2012)
http://dx.doi.org/10.1364/OE.20.006197


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Abstract

A system of two probes is designed for terahertz (THz) time-domain spectroscopy of sub-wavelength size objects. A twin-needle probe confines broadband THz pulses spatially by means of surface plasmon waves to a sub-wavelength spot smaller than 10 microns. The confined pulses are detected within the near-field zone of the twin-needle probe by a sub-wavelength aperture probe. The system allows THz spectroscopy to be applied to single micrometer-size objects in the 1-2.5THz region.

© 2012 OSA

OCIS Codes
(240.6680) Optics at surfaces : Surface plasmons
(320.7100) Ultrafast optics : Ultrafast measurements
(180.4243) Microscopy : Near-field microscopy
(300.6495) Spectroscopy : Spectroscopy, teraherz
(110.6795) Imaging systems : Terahertz imaging

ToC Category:
Spectroscopy

History
Original Manuscript: February 3, 2012
Revised Manuscript: February 20, 2012
Manuscript Accepted: February 21, 2012
Published: March 1, 2012

Virtual Issues
Vol. 7, Iss. 5 Virtual Journal for Biomedical Optics

Citation
Oleg Mitrofanov, Cyril C. Renaud, and Alwyn J. Seeds, "Terahertz probe for spectroscopy of sub-wavelength objects," Opt. Express 20, 6197-6202 (2012)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-20-6-6197


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