Long-wavelength infrared imaging performance of 256x256 miniband transport multiple quantum well IR focal plane arrays

1994 ◽  
Author(s):  
William A. Beck ◽  
Thomas S. Faska ◽  
John W. Little ◽  
Jon Albritton ◽  
Martin Sensiper
Keyword(s):  
Quantum Well ◽  
Focal Plane ◽  
Infrared Imaging ◽  
Multiple Quantum Well ◽  
Focal Plane Arrays ◽  
Multiple Quantum ◽  
Long Wavelength ◽  
Imaging Performance ◽  
Miniband Transport ◽  
Long Wavelength Infrared

Quantum Well and Quantum Dot Based Detector Arrays for Infrared Imaging

2008 ◽  
Vol 1076 ◽  
Author(s):  
Sarath Gunapala ◽  
Sumith Bandara ◽  
Cory Hill ◽  
David Ting ◽  
John Liu ◽  
...  
Keyword(s):  
Quantum Well ◽  
Infrared Imaging ◽  
Incident Light ◽  
Focal Plane Arrays ◽  
Infrared Photodetector ◽  
Detector Arrays ◽  
Long Wavelength ◽  
Quantum Well Infrared Photodetector ◽  
Long Wavelength Infrared ◽  
Reflection Grating

ABSTRACTA mid-wavelength infrared (MWIR) and long-wavelength infrared (LWIR) 320x256 pixel quantum well infrared photodetector (QWIP) dualband focal plane arrays (FPAs) have been demonstrated with excellent imagery. Currently, we are developing a 1024x1024 pixel simultaneous pixel co-registered dualband QWIP FPA. In addition, epitaxially grown self-assembled InAs/InGaAs/GaAs quantum dots (QDs) are exploited for the development of large-format FPAs. The Dot-in-a-Well (DWELL) structures were experimentally shown to absorb both 45° and normal incident light, therefore a reflection grating structure was used to enhance the quantum efficiency. The devices exhibit peak responsivity out to 8.1 microns, with peak detectivity reaching ∼ 1 × 1010 Jones at 77 K. The devices were fabricated into the first LWIR 640x512 pixel QDIP FPA, which has produced excellent infrared imagery with NETD of 40 mK at 60K operating temperature.

GaAs/AlGaAs MULTI-QUANTUM WELL-BASED INFRARED FOCAL PLANE ARRAYS FOR INFRARED IMAGING APPLICATIONS

2002 ◽  
Vol 12 (03) ◽  
pp. 691-713 ◽  
Author(s):  
S. D. GUNAPALA ◽  
S. V. BANDARA
Keyword(s):  
Quantum Well ◽  
Focal Plane ◽  
Infrared Imaging ◽  
Broad Band ◽  
Focal Plane Arrays ◽  
Dual Band ◽  
Infrared Focal Plane Arrays ◽  
Long Wavelength ◽  
Imaging Camera ◽  
Multi Quantum Well

New infrared focal plane arrays (FPAs) with multi-spectral coverage, high sensitivity, and lower manufacturing costs are required for many ground-based and space-based infrared imaging applications, One of the most promising FPA technologies is a GaAs/AlGaAs based Quantum Well Infrared Photodetector (QWIP) FPAs. In this paper we discuss the importance of focal plane array non-uniformity on the performance, demonstrations of varies infrared imaging cameras based on narrow-band QWIP FPAs, demonstration of long-wavelength/very long-wavelength dual-band QWIP imaging camera, demonstration of the first broad-band QWIP imaging camera, and a novel multi-quantum-well based infrared detection device structure for low-background and low-temperature operations.

128x128-element IrSi Schottky-barrier focal plane arrays for long-wavelength infrared imaging

1989 ◽  
Vol 10 (8) ◽  
pp. 361-363 ◽  
Author(s):  
B.-Y. Tsaur ◽  
M.J. McNutt ◽  
R.A. Bredthauer ◽  
R.B. Mattson
Keyword(s):  
Schottky Barrier ◽  
Focal Plane ◽  
Infrared Imaging ◽  
Focal Plane Arrays ◽  
Long Wavelength ◽  
Long Wavelength Infrared

1024 × 1024 pixel mid-wavelength and long-wavelength infrared QWIP focal plane arrays for imaging applications

2005 ◽  
Vol 20 (5) ◽  
pp. 473-480 ◽  
Author(s):  
S D Gunapala ◽  
S V Bandara ◽  
J K Liu ◽  
C J Hill ◽  
S B Rafol ◽  
...  
Keyword(s):  
Focal Plane ◽  
Focal Plane Arrays ◽  
Long Wavelength ◽  
Long Wavelength Infrared
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