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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 18, Iss. 8 — Apr. 12, 2010
  • pp: 8505–8514

Surface plasmon waveguide Schottky detector

Ali Akbari, R. Niall Tait, and Pierre Berini  »View Author Affiliations


Optics Express, Vol. 18, Issue 8, pp. 8505-8514 (2010)
http://dx.doi.org/10.1364/OE.18.008505


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Abstract

A surface plasmon polariton detector is demonstrated at infra-red wavelengths. The device consists of a metal stripe on silicon forming a Schottky contact thereon and supporting surface a plasmon polariton mode that is strongly confined and localised to the metal–semiconductor interface. Detection of optical radiation below the bandgap of silicon (at infrared wavelengths) occurs through internal photoemission. Responsivities of 0.38 and 1.04 mA/W were measured via end-fire coupling to a tapered optical fibre, at room temperature and at a wavelength of 1280 nm, for gold and aluminium stripes on n-type silicon, respectively. The device can be integrated with other structures used in nano-plasmonics, nano-photonics or silicon-based photonics, and it holds promise for short-reach optical interconnects and power monitoring applications.

© 2010 OSA

OCIS Codes
(240.6680) Optics at surfaces : Surface plasmons
(250.0040) Optoelectronics : Detectors

ToC Category:
Optics at Surfaces

History
Original Manuscript: January 22, 2010
Revised Manuscript: March 5, 2010
Manuscript Accepted: March 8, 2010
Published: April 7, 2010

Citation
Ali Akbari, R. Niall Tait, and Pierre Berini, "Surface plasmon waveguide Schottky detector," Opt. Express 18, 8505-8514 (2010)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-18-8-8505


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