Performance of an optimized substrate-free focal plane array for optical readout uncooled infrared detector

2009 ◽  
Vol 105 (3) ◽  
pp. 034505 ◽  
Author(s):  
Teng Cheng ◽  
Qingchuan Zhang ◽  
Dapeng Chen ◽  
Haitao Shi ◽  
Jie Gao ◽  
...  
2018 ◽  
Vol 113 (2) ◽  
pp. 021101 ◽  
Author(s):  
David Z. Ting ◽  
Alexander Soibel ◽  
Arezou Khoshakhlagh ◽  
Sir B. Rafol ◽  
Sam A. Keo ◽  
...  

Micromachines ◽  
2019 ◽  
Vol 10 (12) ◽  
pp. 806 ◽  
Author(s):  
Gamini Ariyawansa ◽  
Joshua Duran ◽  
Charles Reyner ◽  
John Scheihing

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.


Author(s):  
David Z. Ting ◽  
Alexander Soibel ◽  
Arezou Khoshakhlagh ◽  
Sam A. Keo ◽  
Sir B. Rafol ◽  
...  

1997 ◽  
Vol 44 (11) ◽  
pp. 1807-1812 ◽  
Author(s):  
V. Umansky ◽  
G. Bunin ◽  
K. Gartsman ◽  
C. Sharman ◽  
R. Almuhannad ◽  
...  

2013 ◽  
Vol 34 (2) ◽  
pp. 024005 ◽  
Author(s):  
Rmwen Liu ◽  
Yanmei Kong ◽  
Binbin Jiao ◽  
Zhigang Li ◽  
Haiping Shang ◽  
...  

2008 ◽  
Author(s):  
Ming Liu ◽  
Yuejin Zhao ◽  
Xiaohua Liu ◽  
Xiaomei Yu ◽  
Xin Wang ◽  
...  

2009 ◽  
Vol 34 (22) ◽  
pp. 3547 ◽  
Author(s):  
Ming Liu ◽  
Yuejin Zhao ◽  
Liquan Dong ◽  
Xiaomei Yu ◽  
Xiaohua Liu ◽  
...  

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