Quantum efficiency and crosstalk of an improved backside-illuminated indium antimonide focal plane array

1991 ◽  
Author(s):  
Ilam Bloom ◽  
Yael Nemirovsky
Keyword(s):  
Quantum Efficiency ◽  
Indium Antimonide ◽  
Focal Plane ◽  
Focal Plane Array ◽  
Backside Illuminated

scholarly journals InAs/InAsSb Strained-Layer Superlattice Mid-Wavelength Infrared Detector for High-Temperature Operation

Micromachines ◽  
2019 ◽  
Vol 10 (12) ◽  
pp. 806 ◽  
Author(s):  
Gamini Ariyawansa ◽  
Joshua Duran ◽  
Charles Reyner ◽  
John Scheihing
Keyword(s):  
High Temperature ◽  
Quantum Efficiency ◽  
Focal Plane ◽  
Infrared Detector ◽  
Focal Plane Array ◽  
Integration Time ◽  
Strained Layer ◽  
Detector Structure ◽  
Strained Layer Superlattice ◽  
High Temperature Operation

This paper reports an InAs/InAsSb strained-layer superlattice (SLS) mid-wavelength infrared detector and a focal plane array particularly suited for high-temperature operation. Utilizing the nBn architecture, the detector structure was grown by molecular beam epitaxy and consists of a 5.5 µm thick n-type SLS as the infrared-absorbing element. Through detailed characterization, it was found that the detector exhibits a cut-off wavelength of 5.5 um, a peak external quantum efficiency (without anti-reflection coating) of 56%, and a dark current of 3.4 × 10−4 A/cm2, which is a factor of 9 times Rule 07, at 160 K temperature. It was also found that the quantum efficiency increases with temperature and reaches ~56% at 140 K, which is probably due to the diffusion length being shorter than the absorber thickness at temperatures below 140 K. A 320 × 256 focal plane array was also fabricated and tested, revealing noise equivalent temperature difference of ~10 mK at 80 K with f/2.3 optics and 3 ms integration time. The overall performance indicates that these SLS detectors have the potential to reach the performance comparable to InSb detectors at temperatures higher than 80 K, enabling high-temperature operation.

Evaluation Of An Indium Antimonide Hybrid Focal Plane Array For Ground-Based Infrared Astronomy

1987 ◽  
Vol 26 (3) ◽  
pp. 263232 ◽  
Author(s):  
A. M. Fowler ◽  
R. G. Probst ◽  
J. P. Britt ◽  
R. R. Joyce ◽  
F. C. Gillett
Keyword(s):  
Indium Antimonide ◽  
Focal Plane ◽  
Focal Plane Array ◽  
Infrared Astronomy

Dual Band MWIR/LWIR Focal Plane Array Test Results

1999 ◽  
Author(s):  
A. Goldberg ◽  
S. Wang ◽  
M. Sundaram ◽  
P. Uppal ◽  
M. Winn ◽  
...  
Keyword(s):  
Focal Plane ◽  
Focal Plane Array ◽  
Dual Band ◽  
Test Results

Dual-Band Imaging of Military Targets Using a QWIP Focal Plane Array

2001 ◽  
Author(s):  
A. Goldberg ◽  
T. Fischer ◽  
S. Kennerly ◽  
S. Wang ◽  
M. Sundaram
Keyword(s):  
Focal Plane ◽  
Focal Plane Array ◽  
Dual Band
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