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LWIR detector arrays based on nipi superlatticesIt is proposed that nipi superlattice structures in InSb or InAs can be grown with modern techniques to achieve tunable and stable LWIR detectors with high performance. Key device and material considerations for the application of such nipi superlattices to LWIR detectors are examined. It is shown that practical absorption coefficients (of about 100/cm) can be achieved with high doping concentrations (of about 10 to the 19th/cu cm) achievable in these materials. In particular, recent delta doping techniques being developed in molecular beam epitaxy offer promise of higher doping concentrations, improved uniformity, and greater flexibility in tailoring the structures for optimum detector performance.
Document ID
19900031110
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Maserjian, J.
(Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Grunthaner, F. J.
(JPL Pasadena, CA, United States)
Elliott, C. T.
(Royal Signals and Radar Establishment Malvern, United Kingdom)
Date Acquired
August 14, 2013
Publication Date
January 1, 1990
Publication Information
Publication: Infrared Physics
Volume: 30
Issue: 1, 19
ISSN: 0020-0891
Subject Category
Spacecraft Instrumentation
Accession Number
90A18165
Distribution Limits
Public
Copyright
Other

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