Optical Engineering, volume 50, issue 6, pages 61008

Megapixel digital InSb detector for midwave infrared imaging

Lior Shkedy
Publication typeJournal Article
Publication date2011-06-01
Quartile SCImago
Q2
Quartile WOS
Q4
Impact factor1.3
ISSN00913286, 15602303
Atomic and Molecular Physics, and Optics
General Engineering
Abstract
Since the late 1990s Semiconductor devices (SCDs) has developed and manufactured a variety of InSb two-dimensional (2D) focal plane arrays (FPAs) that were implemented in many infrared (IR) systems and applications. SCD routinely manufactures both analog and digital InSb FPAs with array formats of 320×256, 480×384, and 640×512 elements, and pitch size in the range 15 to 30 μm. These FPAs are available in many packaging configurations, including fully integrated detector-Dewarcooler-assembly, with either closed-cycle Stirling or open-loop Joule-Thomson coolers. In response to a need for very high resolution midwave IR (MWIR) detectors and systems, SCD has developed a large format 2D InSb detector with 1280×1024 elements and pixel size of 15 μm. The ROIC is fabricated in CMOS 0.18-μm technology, that enables the small pixel circuitry and relatively low power generation at the focal plane. The digital ROIC has an analog to digital (A/D) converter per-channel and allows for full frame readout at a rate of 100 Hz. Such on-chip A/D conversion eliminates the need for several A/D converters with fairly high power consumption at the system level. The digital readout, together with the InSb detector technology, lead to a wide linear dynamic range and low residual nonuniformity, which is stable over a long period of time following a nonuniformity correction procedure. A special Dewar was designed to withstand harsh environmental conditions while minimizing the contribution to the heat load of the detector. The Dewar together with the low power ROIC, enable a megapixel detector with overall low size, weight, and power with respect to comparable large format detectors. A variety of applications with this detector make use of different cold shields with different f-number and spectral filters. In this paper we present actual performance characteristics of the megapixel InSb detector and demonstrate its high manufacturability.

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Shkedy L. Megapixel digital InSb detector for midwave infrared imaging // Optical Engineering. 2011. Vol. 50. No. 6. p. 61008.
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Shkedy L. Megapixel digital InSb detector for midwave infrared imaging // Optical Engineering. 2011. Vol. 50. No. 6. p. 61008.
RIS |
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RIS Copy
TY - JOUR
DO - 10.1117/1.3572163
UR - https://doi.org/10.1117/1.3572163
TI - Megapixel digital InSb detector for midwave infrared imaging
T2 - Optical Engineering
AU - Shkedy, Lior
PY - 2011
DA - 2011/06/01 00:00:00
PB - SPIE
SP - 61008
IS - 6
VL - 50
SN - 0091-3286
SN - 1560-2303
ER -
BibTex |
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BibTex Copy
@article{2011_Shkedy,
author = {Lior Shkedy},
title = {Megapixel digital InSb detector for midwave infrared imaging},
journal = {Optical Engineering},
year = {2011},
volume = {50},
publisher = {SPIE},
month = {jun},
url = {https://doi.org/10.1117/1.3572163},
number = {6},
pages = {61008},
doi = {10.1117/1.3572163}
}
MLA
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MLA Copy
Shkedy, Lior. “Megapixel digital InSb detector for midwave infrared imaging.” Optical Engineering, vol. 50, no. 6, Jun. 2011, p. 61008. https://doi.org/10.1117/1.3572163.
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