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Please use this identifier to cite or link to this item: http://ntour.ntou.edu.tw:8080/ir/handle/987654321/47412

Title: Near-Field Coupling Method for Subwavelength Surface Plasmon Polariton Waveguides
Authors: Pei-Kuen Wei
Shen-Yu Hsu
Tai-Hsiang Jen
En-Hong Lin
Contributors: 國立臺灣海洋大學:光電科學研究所
Keywords: Surface plasmon polariton
Waveguide
Near-field
Date: 2011-05
Issue Date: 2018-07-18T06:34:06Z
Publisher: Plasmonics
Abstract: Abstract: A near-field coupling method for studying propagation properties of surface plasmon polariton (SPP) in subwavelength dielectric-loaded SPP waveguides (DLSPPWs) is presented. In this method, a tapered fiber probe is employed to generate a nanometer optical spot. When this spot is near the entrance of the DLSPPW with its polarization parallel to the waveguide, a strong guiding wave is observed by a leakage radiation microscope. For DLSPPWs with a dielectric height of about 600 nm, we observed SPP waves with zigzag propagation patterns at 650 nm wavelength. Such zigzag propagation results in a great reduction of propagation loss. In addition, the zigzag wave has a strong optical confinement. The bending loss for an L-bend DLSPPW is only about 0.4 dB.
Relation: 6(3) pp.557–563
URI: http://ntour.ntou.edu.tw:8080/ir/handle/987654321/47412
Appears in Collections:[光電科學研究所] 期刊論文

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