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Journal of the Optical Society of America B

Journal of the Optical Society of America B

| OPTICAL PHYSICS

  • Editor: Henry van Driel
  • Vol. 27, Iss. 3 — Mar. 1, 2010
  • pp: 498–504

Omnidirectional, polarization-insensitive and broadband thin absorber in the terahertz regime

Yu Qian Ye, Yi Jin, and Sailing He  »View Author Affiliations


JOSA B, Vol. 27, Issue 3, pp. 498-504 (2010)
http://dx.doi.org/10.1364/JOSAB.27.000498


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Abstract

A nearly omnidirectional THz absorber for both transverse electric (TE) and transverse magnetic (TM) polarizations is proposed. Through the excitation of the magnetic polariton in a metal-dielectric layer, the incident light is perfectly absorbed in a thin thickness that is about 25 times smaller than the resonance wavelength. By simply stacking several such structural layers with different geometrical dimensions, the bandwidth of this strong absorption can be effectively enhanced due to the hybridization of magnetic polaritons in different layers.

© 2010 Optical Society of America

OCIS Codes
(160.1890) Materials : Detector materials
(260.5740) Physical optics : Resonance
(040.2235) Detectors : Far infrared or terahertz

ToC Category:
Materials

History
Original Manuscript: October 29, 2009
Manuscript Accepted: December 16, 2009
Published: February 19, 2010

Citation
Yu Qian Ye, Yi Jin, and Sailing He, "Omnidirectional, polarization-insensitive and broadband thin absorber in the terahertz regime," J. Opt. Soc. Am. B 27, 498-504 (2010)
http://www.opticsinfobase.org/josab/abstract.cfm?URI=josab-27-3-498

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