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Characterization of InGaAs Linear Array for Applications to Remote SensingAn Indium Gallium Arsenide linear photodiode array in the 1.1-2.5 micron spectral range was characterized. The array has 1024x1 pixels with a 25 micron pitch and was manufactured by Sensors Unlimited, Inc. Characterization and analysis of the electrical and optical properties of a camera system were carried out at room temperature to obtain detector performance parameters. The signal and noise were measured while the array was uniformly illuminated at varying exposure levels. A photon transfer curve was generated by plotting noise as a function of average signal to obtain the camera gain constant. The spectral responsivity was also measured, and the quantum efficiency, read noise and full-well capacity were determined. This paper describes the characterization procedure, analyzes the experimental results, and discusses the applications of the InGaAs linear array to future earth and planetary remote sensing mission.
Document ID
20050160196
Acquisition Source
Langley Research Center
Document Type
Preprint (Draft being sent to journal)
Authors
Garcia, Christopher S.
(Old Dominion Univ. Hampton, VA, United States)
Refaat, Tamer F.
(Science and Technology Corp. Hampton, VA, United States)
Farnsworth, Glenn R.
(NASA Langley Research Center Hampton, VA, United States)
Abedin, M. N.
(NASA Langley Research Center Hampton, VA, United States)
Elsayed-Ali, Hani E.
(Old Dominion Univ. Hampton, VA, United States)
Date Acquired
August 23, 2013
Publication Date
January 1, 2005
Subject Category
Instrumentation And Photography
Meeting Information
Meeting: SPIE Defense and Security Symposium 2005
Location: Orlando, FL
Country: United States
Start Date: March 28, 2005
End Date: April 1, 2005
Sponsors: International Society for Optical Engineering
Funding Number(s)
OTHER: 23-090-20-II
Distribution Limits
Public
Copyright
Public Use Permitted.
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