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Proceedings Paper

Polarization-independent terahertz three-dimensional subwavelength confinement in coupled slot structures
Author(s): Joong-Wook Lee; Jin-Kyu Yang; Jeong Eun Kim; Ik-Bu Sohn; Hun-Kook Choi; Chul Kang; Chul-Sik Kee
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Paper Abstract

We investigate subwavelength confinement of terahertz electromagnetic surface modes in a three-dimensional region with coupled slot structures. Two-dimensional resonance focusing on a subwavelength slot converts to three-dimensional subwavelength confinement, due to sharp edge confinement effect on asymmetric plasmonic structure, at the center position of the slot structures which consists of two or more slots. We also report on the polarization independent confinement of terahertz electromagnetic surface modes beyond diffraction limit. The structure which consists of radially arranged subwavelength slots located at a same center position shows the polarization-independent terahertz three-dimensional subwavelength confinement.

Paper Details

Date Published: 15 October 2012
PDF: 7 pages
Proc. SPIE 8496, Terahertz Emitters, Receivers, and Applications III, 849610 (15 October 2012); doi: 10.1117/12.929325
Show Author Affiliations
Joong-Wook Lee, Gwangju Institute of Science and Technology (Korea, Republic of)
Jin-Kyu Yang, Kongju National Univ. (Korea, Republic of)
Jeong Eun Kim, Gwangju Institute of Science and Technology (Korea, Republic of)
Ik-Bu Sohn, Gwangju Institute of Science and Technology (Korea, Republic of)
Hun-Kook Choi, Chosun Univ. (Korea, Republic of)
Chul Kang, Gwangju Institute of Science and Technology (Korea, Republic of)
Chul-Sik Kee, Gwangju Institute of Science and Technology (Korea, Republic of)
Ctr. for Subwavelength Optics (Korea, Republic of)


Published in SPIE Proceedings Vol. 8496:
Terahertz Emitters, Receivers, and Applications III
Manijeh Razeghi; Alexei N. Baranov; Henry O. Everitt; John M. Zavada; Tariq Manzur, Editor(s)

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