Pixel isolation of low dark-current large-format InAs/GaSb superlattice complementary barrier infrared detector focal plane arrays with high fill factor

2011 ◽  
Author(s):  
Jean Nguyen ◽  
Cory J. Hill ◽  
Don Rafol ◽  
Sam Keo ◽  
Alexander Soibel ◽  
...  
Keyword(s):  
Dark Current ◽  
Focal Plane ◽  
Fill Factor ◽  
Infrared Detector ◽  
Focal Plane Arrays ◽  
Large Format ◽  
High Fill Factor

Towards Surface Leakage Free High Fill-Factor Extended Wavelength InGaAs Focal-Plane Arrays

2019 ◽  
Vol 55 (6) ◽  
pp. 1-8 ◽  
Author(s):  
Yingjie Ma ◽  
Jiaxiong Fang ◽  
Shuangyan Deng ◽  
Jifeng Cheng ◽  
Yi Gu ◽  
...  
Keyword(s):  
Focal Plane ◽  
Fill Factor ◽  
Focal Plane Arrays ◽  
High Fill Factor ◽  
Surface Leakage

Large-format and multispectral QWIP infrared focal plane arrays

2003 ◽  
Author(s):  
Arnold C. Goldberg ◽  
Kwong-Kit Choi ◽  
Murzy Jhabvala ◽  
Anh La ◽  
Parvez N. Uppal ◽  
...  
Keyword(s):  
Focal Plane ◽  
Focal Plane Arrays ◽  
Large Format ◽  
Infrared Focal Plane Arrays

IMAGING PERFORMANCE OF ADVANCED QWIP FOCAL PLANE ARRAYS

2002 ◽  
Vol 12 (03) ◽  
pp. 659-690 ◽  
Author(s):  
ARNOLD GOLDBERG
Keyword(s):  
Quantum Efficiency ◽  
Temperature Difference ◽  
Focal Plane ◽  
Focal Plane Arrays ◽  
Operating Conditions ◽  
Dual Band ◽  
Large Format ◽  
Ir Camera ◽  
Wide Range ◽  
Imaging Performance

Since the first demonstration of the quantum well infrared photodetector (QWIP) in the 1980s, there has been much progress in the application of QWIPs to the production infrared (IR) imaging systems. At this time, focal plane arrays (FPAs) made from QWIPs are readily available for insertion in IR cameras with formats as large as 640 × 480 pixels. Several organizations now have commercially available IR camera systems using QWIPs. In spite of the low single-pixel quantum efficiency relative to MCT, excellent IR imagery has been demonstrated with large format (640 × 480 pixels) single-band and moderate format (256 × 256 pixels) dual-band FPAs. With a large-format staring FPA, one can integrate the signal current for a relatively long time to produce images of similar quality to that from a scanned line array run at the same frame rate. In fact, it can be shown that due to the nature of the noise in a QWIP device, the noise performance of a QWIP FPA can be better than that of MCT FPA as long as the conversion efficiency (the product of the quantum efficiency and the photoconductive gain) is high enough for the read-out integrated circuit (ROIC) integration capacitor to be filled in a frame time. In this chapter the results of laboratory and field tests on large-format single-color QWIP FPAs operating in the LWIR band and dual-band FPAs operating in both the MWIR and LWIR bands simultaneously will be shown. Single-color and dual-band arrays will be shown to give excellent imaging performance and that dual-band FPAs offer unique capabilities to investigate the phenomenology of targets and backgrounds. The performance of the FPAs will be presented from a system performance perspective over a wide range of operating conditions (temperature, bias, integration time, etc.). Results of measurements of noise-equivalent temperature difference (NEΔT), minimum resolvable temperature difference (MRTD measured as a function of target spatial frequency), responsivity, and dark current will be reported. Imagery collected in the field will show the utility of large-format LWIR FPAs for increasing the range at which targets can be identified over previous-generation scanning imagers. Dual-band imagery collected using a QWIP FPA will show how such an array as part of a future imaging system may be able to exploit differences in the IR signatures of targets and backgrounds in the MWIR and LWIR bands to enhance the visibility of targets in cluttered environments. We also show how such an array can be used to make accurate remote temperature measurements. Finally, we will compare the performance of state-of-the-art FPAs made from QWIPs and MCT.

Demonstration of large format mid-wavelength infrared focal plane arrays based on superlattice and BIRD detector structures

2009 ◽  
Vol 52 (6) ◽  
pp. 348-352 ◽  
Author(s):  
Cory J. Hill ◽  
Alexander Soibel ◽  
Sam A. Keo ◽  
Jason M. Mumolo ◽  
David Z. Ting ◽  
...  
Keyword(s):  
Focal Plane ◽  
Focal Plane Arrays ◽  
Large Format ◽  
Infrared Focal Plane Arrays
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