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Proceedings Paper

Polarization characteristics of plasmonics-based optical waveguides for polarization rotation
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Paper Abstract

In this paper, we propose a plasmonics-based optical polarization rotator. The proposed structure consists of a slotted waveguide and a metal film. The proposed device is designed using skewing phenomena of propagation waves at the slotted waveguide with metal film by 3D-FDTD method. We have analyzed various structures such as a slotted waveguide, a metal-clad optical waveguide, and a metal-clad optical waveguide with buffer layers. A metal film on the waveguide acts to rapidly rotate the optical polarization, because it has characteristics of slow group velocity according to the metal-clad optical waveguide. Therefore, an ultra-small sized polarization rotator can be realized by the plasmonics-based asymmetric cross sections of waveguides. The length of designed polarization rotator is just 5 μm for 80% polarization rotation ratio.

Paper Details

Date Published: 21 February 2011
PDF: 6 pages
Proc. SPIE 7933, Physics and Simulation of Optoelectronic Devices XIX, 79332A (21 February 2011); doi: 10.1117/12.874411
Show Author Affiliations
Hong-Seung Kim, Chung-Ang Univ. (Korea, Republic of)
Tae-Kyeong Lee, Chung-Ang Univ. (Korea, Republic of)
Geum-Yoon Oh, Chung-Ang Univ. (Korea, Republic of)
Young-Wan Choi, Chung-Ang Univ. (Korea, Republic of)

Published in SPIE Proceedings Vol. 7933:
Physics and Simulation of Optoelectronic Devices XIX
Bernd Witzigmann; Fritz Henneberger; Yasuhiko Arakawa; Alexandre Freundlich, Editor(s)

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