AIM cryocooler developments for HOT detectors

2014 ◽  
Author(s):  
I. Rühlich ◽  
M. Mai ◽  
A. Withopf ◽  
C. Rosenhagen
Keyword(s):  
Hot Detectors

Compact high-efficiency linear cryocooler in single-piston moving magnet design for HOT detectors

2012 ◽  
Author(s):  
I. Rühlich ◽  
M. Mai ◽  
C. Rosenhagen ◽  
A. Withopf ◽  
S. Zehner
Keyword(s):  
High Efficiency ◽  
Magnet Design ◽  
Hot Detectors ◽  
Moving Magnet

scholarly journals Studies of Dark Current Reduction in InAsSb Mid-Wave Infrared HOT Detectors through Two Step Passivation Technique

2017 ◽  
Vol 132 (2) ◽  
pp. 325-328 ◽  
Author(s):  
K. Michalczewski ◽  
F. Ivaldi ◽  
Ł. Kubiszyn ◽  
D. Benyahia ◽  
J. Boguski ◽  
...  
Keyword(s):  
Dark Current ◽  
Hot Detectors ◽  
Current Reduction

HOT infrared photodetectors

2013 ◽  
Vol 21 (2) ◽  
Author(s):  
P. Martyniuk ◽  
A. Rogalski
Keyword(s):  
Operating Temperature ◽  
Focal Plane Arrays ◽  
Ternary Alloys ◽  
Thermal Detector ◽  
Photon Detectors ◽  
Thermal Imagers ◽  
Hot Detectors ◽  
Hgcdte Photodetectors ◽  
Multispectral Detection ◽  
Detector Materials

AbstractAt present, uncooled thermal detector focal plane arrays are successfully used in staring thermal imagers. However, the performance of thermal detectors is modest, they suffer from slow response and they are not very useful in applications requiring multispectral detection.Infrared (IR) photon detectors are typically operated at cryogenic temperatures to decrease the noise of the detector arising from various mechanisms associated with the narrow band gap. There are considerable efforts to decrease system cost, size, weight, and power consumption to increase the operating temperature in so-called high-operating-temperature (HOT) detectors. Initial efforts were concentrated on photoconductors and photoelectromagnetic detectors. Next, several ways to achieve HOT detector operation have been elaborated including non-equilibrium detector design with Auger suppression and optical immersion. Recently, a new strategies used to achieve HOT detectors include barrier structures such as nBn, material improvement to lower generation-recombination leakage mechanisms, alternate materials such as superlattices and cascade infrared devices. Another method to reduce detector’s dark current is reducing volume of detector material via a concept of photon trapping detector.In this paper, a number of concepts to improve performance of photon detectors operating at near room temperature are presented. Mostly three types of detector materials are considered — HgCdTe and InAsSb ternary alloys, and type-II InAs/GaSb superlattice. Recently, advanced heterojunction photovoltaic detectors have been developed. Novel HOT detector designs, so called interband cascade infrared detectors, have emerged as competitors of HgCdTe photodetectors.

scholarly journals Mid-Wavelength Infrared nBn for HOT Detectors

2014 ◽  
Vol 43 (8) ◽  
pp. 2963-2969 ◽  
Author(s):  
A. Rogalski ◽  
P. Martyniuk
Keyword(s):  
Hot Detectors

Large format, small pixel pitch and hot detectors at SOFRADIR

2013 ◽  
Author(s):  
Y. Reibel ◽  
A. Rouvie ◽  
A. Nedelcu ◽  
T. Augey ◽  
N. Pere-Laperne ◽  
...  
Keyword(s):  
Large Format ◽  
Hot Detectors ◽  
Pixel Pitch ◽  
Small Pixel

scholarly journals Study of the Effectiveness of Anodic Films as Surface Passivation for InAsSb Mid-Wave Infrared HOT Detectors

2018 ◽  
Vol 134 (4) ◽  
pp. 981-985 ◽  
Author(s):  
K. Michalczewski ◽  
E. Gomółka ◽  
J. Ciosek ◽  
Ł. Kubiszyn ◽  
D. Benyahia ◽  
...  
Keyword(s):  
Surface Passivation ◽  
Anodic Films ◽  
Hot Detectors

hot detectors

SPIE Newsroom ◽  
2001 ◽  
Author(s):  
Michael Todd
Keyword(s):  
Hot Detectors

scholarly journals Recent progress in the development of MCT hot detectors

2017 ◽  
Author(s):  
R. Wollrab ◽  
T. Schallenberg ◽  
H. Lutz ◽  
M. Haiml ◽  
W. Schirmacher ◽  
...  
Keyword(s):  
Recent Progress ◽  
Hot Detectors
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