&lt;title&gt;Nonlinear response of QWIP detectors: summary of data from four manufacturers&lt;/title&gt;

Arrington, Douglas C.; Hubbs, John E.; Gramer, Mark E.; Dole, Gary A.

doi:10.1117/12.391741

Cited by 9 publications

(3 citation statements)

References 6 publications

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Section: Qwipmentioning

confidence: 96%

Competitive technologies for third generation infrared photon detectors

Rogalski

2006

SPIE Proceedings

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Hitherto, two families of multielement infrared (IR) detectors are used for principal military and civilian infrared applications; one is used for scanning systems (first generation) and the other is used for staring systems (second generation). Third generation systems are being developed nowadays. In the common understanding, third generation IR systems provide enhanced capabilities like larger number of pixels, higher frame rates, better thermal resolution as well as multicolor functionality and other on-chip functions.In the paper, issues associated with the development and exploitation of materials used in fabrication of third generation infrared photon detectors are discussed. In this class of detectors two main competitors, HgCdTe photodiodes and quantum well photoconductors are considered. The performance figures of merit of state-of-the-art HgCdTe and QWIP focal plane arrays (FPAs) are similar because the main limitations come from the readout circuits. The metallurgical issues of the epitaxial layers such as uniformity and number of defected elements are the serious problems in the case of long wavelength infrared (LWIR) and very LWIR (VLWIR) HgCdTe FPAs. It is predicted that superlattice based InAs/GaInSb system grown on GaSb substrate seems to be an attractive to HgCdTe with good spatial uniformity and an ability to span cutoff wavelength from 3 to 25 µm. In this context the material properties of type II superlattices are considered more in detail.

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Section: Qwipmentioning

confidence: 96%

Competitive technologies for third generation infrared photon detectors

Rogalski

2006

SPIE Proceedings

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“…The frequency response has flat regions at both low and at high frequencies and the response rolls off between these two levels at a frequency point that is proportional to the inverse of the dynamic resistance of the detector [31]; see detector bias, photon irradiance, and operating temperature. Under typical ambient background conditions, the dynamic resistance is low and the roll-off, which takes place at frequencies in the range of 100 kHz, are not normally seen.…”

Section: Qwipmentioning

confidence: 97%

Material considerations for third generation infrared photon detectors

Rogalski

2007

Infrared Physics & Technology

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“…Singh et al have modeled and explained some of the irregular behaviors by treating QWIP as a resistance in series with a capacitance 29 ' 30 . Arrington et al 31 have shown experimentally the non-flat frequency response curves of QWIP at low background and low operating temperature conditions. Under such conditions, responsivity decreases as the detector operating frequency increases.…”

Section: Qwips For Low Background and Low Temperature Operationmentioning

confidence: 99%

GaAs/AlGaAs MULTI-QUANTUM WELL-BASED INFRARED FOCAL PLANE ARRAYS FOR INFRARED IMAGING APPLICATIONS

Gunapala

Bandara

2002

Int. J. Hi. Spe. Ele. Syst.

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New infrared focal plane arrays (FPAs) with multi-spectral coverage, high sensitivity, and lower manufacturing costs are required for many ground-based and space-based infrared imaging applications. One of me most promising FPA technologies is a GaAs/AlGaAs based Quantum Well Infrared Photodetector (QWIP) FPAs. In this paper we discuss the importance of focal plane array non-uniformity on the performance, demonstrations of varies infrared imaging cameras based on narrow-band QWIP FPAs, demonstration of long-wavelength/very long-wavelength dual-band QWIP imaging camera, demonstration of the first broad-band QWIP imaging camera, and a novel multi-quantum-well based infrared detection device structure for low-background and lowtemperature operations.

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<title>Nonlinear response of QWIP detectors: summary of data from four manufacturers</title>

Cited by 9 publications

References 6 publications

Competitive technologies for third generation infrared photon detectors

Competitive technologies for third generation infrared photon detectors

Material considerations for third generation infrared photon detectors

GaAs/AlGaAs MULTI-QUANTUM WELL-BASED INFRARED FOCAL PLANE ARRAYS FOR INFRARED IMAGING APPLICATIONS

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