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Surface plasmon waveguide Schottky detectors operating near breakdown
Author(s) -
Olivieri Anthony,
Akbari Ali,
Berini Pierre
Publication year - 2010
Publication title -
physica status solidi (rrl) – rapid research letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.786
H-Index - 68
eISSN - 1862-6270
pISSN - 1862-6254
DOI - 10.1002/pssr.201004245
Subject(s) - responsivity , surface plasmon , schottky barrier , schottky diode , materials science , optoelectronics , detector , plasmon , surface plasmon polariton , waveguide , photoelectric effect , optics , photodetector , physics , diode
Abstract Surface plasmon waveguide Schottky detectors were investigated experimentally at room temperature near junction breakdown. The detectors consist of an Au stripe on n‐Si forming a Schottky contact thereon and supporting strongly confined surface plasmons localised at the Au/Si interface. The detectors were excited by end‐fire coupling at λ 0 = 1310 nm where the detection mechanism is the internal photoelectric effect. A ∼10× increase in responsivity was measured at strong reverse biases compared to no bias due to plasmon‐induced junction breakdown. A maximum responsivity of 2.35 mA/W is reported.Surface plasmon waveguide Schottky detector (© 2010 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)