Journal
IEEE TRANSACTIONS ON TERAHERTZ SCIENCE AND TECHNOLOGY
Volume 1, Issue 2, Pages 441-449Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/TTHZ.2011.2167832
Keywords
Metamaterials; optical waveguides; spectroscopy; time-domain analysis
Funding
- MEXT of Japan
- JSPS [23244065, 19-3700]
- MEXT of Japan [18GS0208, 20104007]
- National Science Foundation [ECCS 0802036]
- Air Force Office of Scientific Research [FA9550-09-1-0708]
- Grants-in-Aid for Scientific Research [23244065] Funding Source: KAKEN
- Div Of Electrical, Commun & Cyber Sys
- Directorate For Engineering [0802036] Funding Source: National Science Foundation
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We investigate the waveguiding properties of a planar metamaterial slab using terahertz time-domain attenuated total reflection spectroscopy. The enhancement of evanescent waves is observed for transverse electric and transverse magnetic excitation and is caused by resonant excitation of waveguide modes in the slab. Our calculation describes the experimental results and justifies the extremely small effective thickness. We also studied the dispersion relations of the waveguide modes of the slab by theoretical calculation.
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