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Antenna length and polarization response of antenna-coupled MOM diode infrared detectors

Authors
Publisher
Elsevier B.V.
Publication Date
Volume
53
Issue
3
Identifiers
DOI: 10.1016/j.infrared.2009.11.004
Keywords
  • Infrared Detector
  • Dipole Antenna
  • Metal-Oxide-Metal Diode
Disciplines
  • Physics

Abstract

Abstract This work focuses on the fabrication and response of dipole antenna-coupled metal–oxide–metal diode detectors to long-wave infrared radiation. The detectors are fabricated using a single electron beam lithography step and a shadow evaporation technique. The detector’s characteristics are presented, which include response as a function of incident infrared power and polarization angle. In addition, the effect of dipole antenna length on detection characteristics for 10.6 μm radiation has been measured to determine resonant lengths. The response of the detector shows a first resonance at a dipole length of 3.1 μm, a second resonance at 9.3 μm, and third at 15.5 μm. The zeros intermediate to the resonances are also evident.

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