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Nanowaveguides and couplers based on hybrid plasmonic modes

Journal article
Authors J Tian
Z. Ma
Q. Li
Y. Song
Z. Liu
Q. Yang
C. L. Zha
Johan Åkerman
L. Tong
M. Qiu
Published in Applied Physics Letters
Volume 97
Issue 23
Pages 231121 (3 pages)
ISSN 0003-6951
Publication year 2010
Published at Department of Physics (GU)
Pages 231121 (3 pages)
Language en
Keywords plasmonik, fotonik
Subject categories Photonics


Experimental demonstration of silicon nanowires based hybrid plasmonic waveguides and couplers with subwavelength mode confinement at the near infrared wavelength λ = 980 nm are presented. By measuring the radiating light from the discontinuities in a nanowire, the estimated propagation length of the hybrid plasmonic waveguide is about 30 μm (corresponding to a propagation loss of ∼ 0.14 dB/μm). For the coupler, the experimental results show that the hybrid plasmonic modes can be efficiently coupled between two overlapping nanowires only with a 1.9 μm long coupling length.

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