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Split bull's eye shaped aluminum antenna for plasmon-enhanced nanometer scale germanium photodetector

Ren, Fang-Fang; Ang, Kah-Wee; Ye, Jiandong; Yu, M.B.; Lo, G.Q.; Kwong, D.L.


Bull's eye antennas are capable of efficiently collecting and concentrating optical signals into an ultrasmall area, offering an excellent solution to break the bottleneck between speed and photoresponse in subwavelength photodetectors. Here, we exploit the idea of split bull's eye antenna for a nanometer germanium photodetector operating at a standard communication wavelength of 1310 nm. The nontraditional plasmonic metal aluminum has been implemented in the resonant antenna structure...[Show more]

CollectionsANU Research Publications
Date published: 2011
Type: Journal article
Source: Nano Letters
DOI: 10.1021/nl104338z


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