Embedded plasmonic-enhanced quantum well infrared photodetector

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

doi:10.1117/12.2065128

3 October 2014 Embedded plasmonic-enhanced quantum well infrared photodetector

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

Proceedings Volume 9220, Infrared Sensors, Devices, and Applications IV; 922005 (2014) https://doi.org/10.1117/12.2065128
Event: SPIE Optical Engineering + Applications, 2014, San Diego, California, United States

Abstract

Quantum Well Infrared Photodetector (QWIP) is an attractive candidate for long-wave infrared detection but is limited due its low quantum efficiency and its polarization sensitivity. Here we propose a detector with an embedded plasmonic structure surrounding the detector that is protected. Our detector uses an array of pillars surrounded by a plasmonic metal and contacted from the top making one “super pixel”. This structure is within close proximity of the active medium and is protected by the top contact. This configuration also eliminates non-absorbing semiconductor eliminating significant dark current.

Citation Download Citation

Robert L. Brown, Alireza Bonakdar, Sung Jun Jang, Omer G. Memis, and Hooman Mohseni "Embedded plasmonic-enhanced quantum well infrared photodetector", Proc. SPIE 9220, Infrared Sensors, Devices, and Applications IV, 922005 (3 October 2014); https://doi.org/10.1117/12.2065128

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