Skip navigation
Skip navigation

Second-order surface-plasmon assisted responsivity enhancement in germanium nano-photodetectors with bull's eye antennas

Ren, Fang-Fang; Xu, Wei-Zong; Ye, Jiandong; Ang, Kah-Wee; Lu, Hai; Zhang, Rong; Yu, Mingbin; Lo, Guo-Qiang; Tan, Hark Hoe; Jagadish, Chennupati


The enhancement of photo-response in nanometer-scale germanium photodetectors through bull's eye antennas capable of supporting 2nd-order Bloch surface plasmon modes is demonstrated in theory and experiment. A detailed numerical investigation reveals that the presence of surface wave and its constructive interference with the directly incident light are incorporated into the main mechanisms for enhancing transmission through the central nanoaperture. With a grating period of 1500 nm, the...[Show more]

CollectionsANU Research Publications
Date published: 2014-06-30
Type: Journal article
Source: Optics express


There are no files associated with this item.

Items in Open Research are protected by copyright, with all rights reserved, unless otherwise indicated.

Updated:  20 July 2017/ Responsible Officer:  University Librarian/ Page Contact:  Library Systems & Web Coordinator