Journal
PHYSICA STATUS SOLIDI-RAPID RESEARCH LETTERS
Volume 4, Issue 10, Pages 283-285Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/pssr.201004245
Keywords
plasmons; surface plasmon-polaritons; Schottky contacts; sensors
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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 lambda(0) = 1310 nm where the detection mechanism is the internal photoelectric effect. A similar to 10x 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. [GRAPHICS] Surface plasmon waveguide Schottky detector (C) 2010 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
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