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Superlattice Barrier Infrared Detector Development at the Jet Propulsion LaboratoryWe report recent efforts in achieving state-of-the-art performance in type-II superlattice based infrared photodetectors using the barrier infrared detector architecture. We used photoluminescence measurements for evaluating detector material and studied the influence of the material quality on the intensity of the photoluminescence. We performed direct noise measurements of the superlattice detectors and demonstrated that while intrinsic 1/f noise is absent in superlattice heterodiode, side-wall leakage current can become a source of strong frequency-dependent noise. We developed an effective dry etching process for these complex antimonide-based superlattices that enabled us to fabricate single pixel devices as well as large format focal plane arrays. We describe the demonstration of a 1024x1024 pixel long-wavelength infrared focal plane array based the complementary barrier infrared detector (CBIRD) design. An 11.5 micron cutoff focal plane without anti-reflection coating has yielded noise equivalent differential temperature of 53 mK at operating temperature of 80 K, with 300 K background and cold-stop. Imaging results from a recent 10 ?m cutoff focal plane array are also presented.
Document ID
20120013129
Acquisition Source
Jet Propulsion Laboratory
Document Type
Conference Paper
External Source(s)
Authors
Ting, David Z.
(Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Soibel, Alexander
(Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Rafol, Sir B.
(Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Nguyen, Jean
(Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Hoglund, Linda
(Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Khoshakhlagh, Arezou
(Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Keo, Sam A.
(Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Liu, John K.
(Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Mumolo, Jason M.
(Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Date Acquired
August 26, 2013
Publication Date
April 25, 2011
Subject Category
Instrumentation And Photography
Meeting Information
Meeting: SPIE Defense, Security and Sensing 2011
Location: Orlando, FL
Country: United States
Start Date: April 25, 2011
End Date: April 29, 2011
Distribution Limits
Public
Copyright
Other
Keywords
superlattice
infrared
unipolar barrier
heterostructure
photodetector

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