Title :
Quantum Well and Quantum Dot Based Detector Arrays for Infrared Imaging
Author :
Gunapala, S.D. ; Bandara, S.V. ; Ting, D.Z. ; Hill, C.J. ; Mumolo, J.M. ; Liu, J.K. ; Rafol, S.B. ; Blazejewski, E.R. ; LeVan, P.D. ; Tidrow, M.Z.
Author_Institution :
Jet Propulsion Lab., California Inst. of Technol., Pasadena, CA
Abstract :
A mid-wavelength infrared (MWIR) and long-wavelength infrared (LWIR) 1024times1024 pixel quantum well infrared photodetector (QWIP) focal plane array has been demonstrated with excellent imagery. MWIR focal plane has given noise equivalent differential temperature (NETD) of 19 mK at 95 K operating temperature with f/2.5 optics at 300 K background and LWIR focal plane has given NEDT of 13 mK at 70 K operating temperature with same optical and background conditions as MWIR array. Both of these focal plane arrays have shown background limited performance (BLIP) at 90 K and 70 K operating temperatures with the same optics and background conditions. In this paper, we will discuss their performance in quantum efficiency, NETD, uniformity, and operability
Keywords :
focal planes; infrared detectors; optical noise; photodetectors; quantum dots; quantum well devices; 1024 pixel; 300 K; 70 K; 90 K; 95 K; background conditions; background limited performance; f/2.5 optics; focal plane array; infrared imaging; infrared quantum well infrared photodetector; noise equivalent differential temperature; optical conditions; quantum dot based detector arrays; quantum efficiency; Background noise; Infrared detectors; Infrared imaging; Optical arrays; Optical noise; Photodetectors; Pixel; Quantum dots; Sensor arrays; Temperature;
Conference_Titel :
Lasers and Electro-Optics Society, 2006. LEOS 2006. 19th Annual Meeting of the IEEE
Conference_Location :
Montreal, Que.
Print_ISBN :
0-7803-9555-7
Electronic_ISBN :
0-7803-9555-7
DOI :
10.1109/LEOS.2006.279146
