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Virtual Journal for Biomedical Optics

Virtual Journal for Biomedical Optics

| EXPLORING THE INTERFACE OF LIGHT AND BIOMEDICINE

  • Editor: Gregory W. Faris
  • Vol. 4, Iss. 2 — Feb. 10, 2009

Near field imaging of terahertz focusing onto rectangular apertures

M. A. Seo, A. J. L. Adam, J. H. Kang, J. W. Lee, K. J. Ahn, Q. H. Park, P. C. M. Planken, and D. S. Kim  »View Author Affiliations


Optics Express, Vol. 16, Issue 25, pp. 20484-20489 (2008)
http://dx.doi.org/10.1364/OE.16.020484


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Abstract

We performed terahertz near-field experiments on single rectangular holes with various lengths grown on an electro-optic crystal substrate with λ/100 resolution. We find that the near-field amplitude becomes proportionally larger as the rectangle becomes narrower, strongly suggesting that a constant energy passes through even for a very narrow slit. The occurrence of a large field enhancement at the fundamental localized resonance is discussed confirming the funneling of energy at the near-field.

© 2008 Optical Society of America

OCIS Codes
(180.0180) Microscopy : Microscopy
(260.3090) Physical optics : Infrared, far
(320.7150) Ultrafast optics : Ultrafast spectroscopy

ToC Category:
Microscopy

History
Original Manuscript: October 1, 2008
Revised Manuscript: November 19, 2008
Manuscript Accepted: November 20, 2008
Published: November 25, 2008

Virtual Issues
Vol. 4, Iss. 2 Virtual Journal for Biomedical Optics

Citation
M. A. Seo, A. J. L. Adam, J. H. Kang, J. W. Lee, K. J. Ahn, Q. H. Park, P. C. M. Planken, and D. S. Kim, "Near field imaging of terahertz focusing onto rectangular apertures," Opt. Express 16, 20484-20489 (2008)
http://www.opticsinfobase.org/vjbo/abstract.cfm?URI=oe-16-25-20484


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