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Proceedings Paper

Plasmonic gap mode nanocavities at telecommunication wavelengths
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Paper Abstract

We analyze a plasmonic gap-mode Fabry-Perot nanocavity containing a metallic nanowire. The proper choice of the cladding layer brings about a decent confinement inside the active region for the fundamental and first-order plasmonic gap modes. We numerically extract the reflectivity of the fundamental and first-order mode and obtain the optical field inside the cavity. We also study the dependence of the reflectivity on the thickness of Ag reflectors and show that a decent reflectivity above 90 % is achievable. For such cavities with a cavity length approaching 1.5 μm, a quality factor near 150 and threshold gain lower than 1500 cm−1 are achievable.

Paper Details

Date Published: 7 March 2014
PDF: 6 pages
Proc. SPIE 8980, Physics and Simulation of Optoelectronic Devices XXII, 89801Y (7 March 2014); doi: 10.1117/12.2038718
Show Author Affiliations
Pi-Ju Cheng, National Chiao Tung Univ. (Taiwan)
Academia Sinica (Taiwan)
Chen-Ya Weng, Academia Sinica (Taiwan)
National Taiwan Ocean Univ. (Taiwan)
Shu-Wei Chang, National Chiao Tung Univ. (Taiwan)
Academia Sinica (Taiwan)
Tzy-Rong Lin, National Taiwan Ocean Univ. (Taiwan)
Chung-Hao Tien, National Chiao Tung Univ. (Taiwan)

Published in SPIE Proceedings Vol. 8980:
Physics and Simulation of Optoelectronic Devices XXII
Bernd Witzigmann; Marek Osiński; Fritz Henneberger; Yasuhiko Arakawa, Editor(s)

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