Embedded plasmonic quantum well infrared photodetector

Robert L. Brown; Alireza Bonakdar; Omer G. Memis; Vala Fathipour; Sung Jun Jang; Hooman Mohseni

doi:10.1117/12.2025299

19 September 2013 Embedded plasmonic quantum well infrared photodetector

Robert L. Brown, Alireza Bonakdar, Omer G. Memis, Vala Fathipour, Sung Jun Jang, Hooman Mohseni

Proceedings Volume 8868, Infrared Sensors, Devices, and Applications III; 886808 (2013) https://doi.org/10.1117/12.2025299
Event: SPIE Optical Engineering + Applications, 2013, San Diego, California, United States

Abstract

In order to lessen the strain of cooling requirements on mid-infrared detectors, reducing the volume of the detecting medium is one promising solution. It is necessary to augment the absorption (quantum efficiency) lost when shrinking the detector volume. We present a Quantum Well Infrared Photodetector with a plasmonic structure embedded within and around the detection media. This device has a self-aligned plasmonic-hole array designed for 8μm wavelength and a planar top contact to the array of detector material. This arrangement has an expected field enhancement of an order of magnitude and lends itself to making a Focal Plane Array.

Citation Download Citation

Robert L. Brown, Alireza Bonakdar, Omer G. Memis, Vala Fathipour, Sung Jun Jang, and Hooman Mohseni "Embedded plasmonic quantum well infrared photodetector", Proc. SPIE 8868, Infrared Sensors, Devices, and Applications III, 886808 (19 September 2013); https://doi.org/10.1117/12.2025299

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KEYWORDS

Quantum well infrared photodetectors

Metals

Plasmonics

Etching

Sensors

Quantum efficiency

Quantum wells

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