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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Vol. 43, Iss. 6 — Feb. 20, 2004
  • pp: 1412–1415

Polarization response of two-dimensional metallic photonic crystals studied by terahertz time-domain spectroscopy

Fumiaki Miyamaru and Masanori Hangyo  »View Author Affiliations


Applied Optics, Vol. 43, Issue 6, pp. 1412-1415 (2004)
http://dx.doi.org/10.1364/AO.43.001412


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Abstract

The polarization characteristics of a terahertz (THz) wave transmitted through two-dimensional (2-D) metallic photonic crystals (MPCs) are investigated. The 2-D MPCs studied in this paper are metal slabs perforated periodically with circular holes. We measured the polarization characteristics of the THz wave using a THz time-domain spectroscopic system with wire grid polarizers in the time and frequency domains. The linearly polarized incident THz wave changes its polarization direction and becomes elliptic after it transmits through the sample. This phenomenon is highly sensitive to the incident angle. It is shown that the frequency range at which the polarization rotation occurs is related to the lattice constant of a photonic crystal, indicating the importance of photonic band modes of the 2-D MPC in the mechanism of the phenomenon.

© 2004 Optical Society of America

OCIS Codes
(230.5440) Optical devices : Polarization-selective devices
(240.6680) Optics at surfaces : Surface plasmons
(260.3910) Physical optics : Metal optics

History
Original Manuscript: July 1, 2003
Revised Manuscript: October 14, 2003
Published: February 20, 2004

Citation
Fumiaki Miyamaru and Masanori Hangyo, "Polarization response of two-dimensional metallic photonic crystals studied by terahertz time-domain spectroscopy," Appl. Opt. 43, 1412-1415 (2004)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-43-6-1412

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