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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 17, Iss. 5 — Mar. 2, 2009
  • pp: 3826–3834

Terahertz near-field imaging of electric and magnetic resonances of a planar metamaterial

Andreas Bitzer, Hannes Merbold, Andreas Thoman, Thomas Feurer, Hanspeter Helm, and Markus Walther  »View Author Affiliations


Optics Express, Vol. 17, Issue 5, pp. 3826-3834 (2009)
http://dx.doi.org/10.1364/OE.17.003826


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Abstract

Experimental investigations of the microscopic electric and in particular the magnetic near-fields in metamaterials remain highly challenging and current studies rely mostly on numerical simulations. Here we report a terahertz near-field imaging approach which provides spatially resolved measurements of the amplitude, phase and polarization of the electric field from which we extract the microscopic magnetic near-field signatures in a planar metamaterial constructed of split-ring resonators (SRRs). In addition to studying the fundamental resonances of an individual double SRR unit we further investigate the interaction with neighboring elements.

© 2009 Optical Society of America

OCIS Codes
(240.6680) Optics at surfaces : Surface plasmons
(160.3918) Materials : Metamaterials
(180.4243) Microscopy : Near-field microscopy
(300.6495) Spectroscopy : Spectroscopy, teraherz

ToC Category:
Microscopy

History
Original Manuscript: January 22, 2009
Revised Manuscript: February 20, 2009
Manuscript Accepted: February 20, 2009
Published: February 26, 2009

Citation
Andreas Bitzer, Hannes Merbold, Andreas Thoman, Thomas Feurer, Hanspeter Helm, and Markus Walther, "Terahertz near-field imaging of electric and magnetic resonances of a planar metamaterial," Opt. Express 17, 3826-3834 (2009)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-17-5-3826


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