Conference proceeding
Quaternary GaInAsSb 2.0-2.5 micron back-illuminated focal plane array for blood glucose monitoring
Proceedings of SPIE, Vol.5726(1), pp.113-121
Semiconductor Photodetectors II
04/07/2005
DOI: 10.1117/12.590820
Abstract
A focal plane array detector sensitive from 2.0-2.5 m and consisting of 32, 1.0 mm x 50 m pixels, all functional, is demonstrated. Mean room-temperature R
A is found to be 1.0 cm
, limited by sidewall leakage. The focal plane array is fabricated from an MBE-grown homojunction
GaInAsSb grown on an
-type GaSb substrate. Back-illumination geometry is compared to front-illumination geometry and is found to be favorable, particularly the improved responsivity (1.3 A/W at 2.35 m corresponding to 68% quantum efficiency) due to reflection of light off the metal contact. Further, back-illumination is the most convenient geometry for mounting the array onto a compact blood glucose sensor because both contacts can be mounted on one side, while detector illumination occurs on the other.
Details
- Title: Subtitle
- Quaternary GaInAsSb 2.0-2.5 micron back-illuminated focal plane array for blood glucose monitoring
- Creators
- John P Prineas - University of IowaMadhusudhana Reddy - University of IowaJonathon T Olesberg - University of IowaChuanshun Cao - University of IowaSaravanan Veerasamy - University of IowaMichael E Flatte - University of IowaEdwin Koerperick - University of IowaThomas F Boggess - University of IowaMichael R Santilli - University of KansasLinda J Olafsen - University of Kansas
- Resource Type
- Conference proceeding
- Publication Details
- Proceedings of SPIE, Vol.5726(1), pp.113-121
- Conference
- Semiconductor Photodetectors II
- DOI
- 10.1117/12.590820
- ISSN
- 0277-786X
- eISSN
- 1996-756X
- Language
- English
- Date published
- 04/07/2005
- Academic Unit
- Electrical and Computer Engineering; Physics and Astronomy
- Record Identifier
- 9984428825002771
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