Experimental demonstration of dielectric-loaded plasmonic waveguide disk resonators at telecom wavelengths

Dielectric-loaded plasmonic waveguide disk resonators (WDRs) operating at telecom wavelengths are fabricated and investigated. Disks resonators of various radii coupled to a straight waveguide are studied both numerically and experimentally. For each disk radius, the gap between the disk and the wav...

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Bibliographic Details
Published in:Applied physics letters 2011-04, Vol.98 (16), p.161102-161102-3
Main Authors: Randhawa, Sukanya, Krasavin, Alexey V., Holmgaard, Tobias, Renger, Jan, Bozhevolnyi, Sergey I., Zayats, Anatoly V., Quidant, Romain
Format: Article
Language:English
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Summary:Dielectric-loaded plasmonic waveguide disk resonators (WDRs) operating at telecom wavelengths are fabricated and investigated. Disks resonators of various radii coupled to a straight waveguide are studied both numerically and experimentally. For each disk radius, the gap between the disk and the waveguide is varied from 0 to 300 nm. Performance of the fabricated WDRs is characterized in the wavelength range of 1500-1620 nm using near-field optical microscopy. Wavelength selectivity and efficiency of the WDRs are evaluated and are in good agreement with numerical results.
ISSN:0003-6951
1077-3118
DOI:10.1063/1.3574606