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Proceedings Paper

Extraordinary terahertz transmission of subwavelength plasmonic structures
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Paper Abstract

We present experimental studies of extraordinary terahertz (THz) transmission in subwavelength plasmonic hole arrays patterned on both metals and doped semiconductors. Transmission efficiency higher than unity was achieved when it was normalized to the area occupied by the holes. The effects of hole shape, dielectric function of metals and surrounding media, polarization dependence, and array thickness on the enhanced THz transmission in both metals and plasmonic semiconductors were demonstrated by use of THz time-domain spectroscopy. Extraordinary THz transmission was also realized in metallic arrays having thickness of only one-third of the skin depth. THz surface plasmon resonance has potential applications in THz imaging, biosensing, interconnects, and the development of next generation photoconductive antennas for THz generation and detection.

Paper Details

Date Published: 12 October 2006
PDF: 9 pages
Proc. SPIE 6373, Terahertz Physics, Devices, and Systems, 63730P (12 October 2006); doi: 10.1117/12.685988
Show Author Affiliations
Weili Zhang, Oklahoma State Univ. (United States)
Abul K. Azad, Oklahoma State Univ. (United States)


Published in SPIE Proceedings Vol. 6373:
Terahertz Physics, Devices, and Systems
Mehdi Anwar; Anthony J. DeMaria; Michael S. Shur, Editor(s)

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