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Nonuniformity effects in a hybrid platinum silicide imaging device.Perry, David Lester. January 1991 (has links)
During the last ten to fifteen years, a new class of electronic imaging devices has been created. Closely related to the visible-light Charge-Coupled Device, or CCD, this new class of components has extended electronic imaging capability into the near, middle, and long-wave infrared regions of the electromagnetic spectrum. Most notable among these new components are the IRCCD, a monolithic device, and the hybrid imaging device, which employs separately optimized detector and readout assemblies. Since the creation of the first infrared imaging device, there has been a continual effort to improve performance. One of the many problems faced by the designers of such devices is that of spatial response nonuniformity. This investigation considers the impact of spatial response nonuniformity on thermal imaging. The analysis presented assumes the use of a platinum silicide hybrid imaging device intended to operate in the 3-5 μm middle-wave IR band. Both linear and nonlinear models for its operation are developed. Using these models, estimates of system performance are made. Post-correction spatial noise is estimated for two popular nonuniformity correction schemes. To demonstrate the validity of these concepts, results obtained from actual device testing are presented. Upper bounds are established for the amount of nonuniformity present in the tested device. To complete the investigation, conventional detector figures of merit are then modified to include the effects of nonuniformity.
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New solutions for focal planesGiorgi, Sabine Veronique 08 1900 (has links)
No description available.
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Modeling and implementation of an integrated pixel processing tile for focal plane systemsRobinson, William Hugh 01 December 2003 (has links)
No description available.
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Computer model of a focal plane arrayThvedt, Tom Arnold, 1956- January 1988 (has links)
The background and operation of charge transfer devices is reviewed, and a computer model simulation of focal plane arrays is presented. The model provides an option to predict the performance of a focal plane. With this program, any of the allowed materials, detectors, readout structures, or preamplifiers that make up a focal plane, may be selected to create new designs for analysis. Only surface channel devices are considered, and only references to the spectral dependence are presented. The computer model's operation and validity is supported by over 70 equations and more than 50 figures, including actual computer screen printouts. Standard equations followed by brief discussions are used to support the menu driven program. The structure and operation of the computer model is presented, but not the actual software source code.
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EVALUATION OF A SCHOTTKY BARRIER INFRARED CHARGE-COUPLED DEVICE.Hudson, Leland Ray. January 1982 (has links)
No description available.
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Modeling and implementation of an integrated pixel processing tile for focal plane systemsRobinson, William Hugh, January 2003 (has links) (PDF)
Thesis (Ph. D.)--School of Electrical and Computer Engineering, Georgia Institute of Technology, 2004. Directed by D. Scott Wills. / Vita. Includes bibliographical references (leaves 105-111).
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Investigation of evanescent optical wave interaction at a charged semiconductor interface /Chen, Kuan-Ho. January 2004 (has links)
Thesis (M.S.)--University of Missouri-Columbia, 2004. / Typescript. Includes bibliographical references (leaves 63-64). Also available on the Internet.
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Detecting near-UV and near-IR wavelengths with the FOVEON Image Sensor /Cheak, Seck Fai. January 2004 (has links) (PDF)
Thesis (M.S. in Combat Systems Technology)--Naval Postgraduate School, Dec. 2004. / Thesis Advisor(s): Gamani Karunasiri, Richard C. Olsen. Includes bibliographical references (p. 57-60). Also available online.
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Investigation of evanescent optical wave interaction at a charged semiconductor interfaceChen, Kuan-Ho. January 2004 (has links)
Thesis (M.S.)--University of Missouri-Columbia, 2004. / Typescript. Includes bibliographical references (leaves 63-64). Also available on the Internet.
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Design and fabrication of a continuous flow mixer for investigating protein folding kinetics using focal plane array Fourier transform infrared spectroscopyHaq, Moeed. January 2008 (has links)
This thesis presents the design, fabrication, and testing of a micromixing device intended for use in investigating protein dynamics on a microsecond timescale by Fourier transform infrared (FTIR) spectroscopy. Numerical modeling of flow was implemented to predict the influence of flow rates and geometric variations on mixing performance in three passive mixers. The simulation models were validated by experimental measurements using optical and infrared detection. The optimum level of mixing was observed in a multi-lamination mixer that combined thin filaments of differing fluids in an alternating manner. The multi-laminates were transferred onto polished calcium fluoride infrared-transparent optical windows by lithographic processing of an Epon-based polymer, SU-8. A rigid seal between two microchannels was accomplished through thermal bonding of an unexposed resist layer, which acted as a thermal epoxy under the influence of temperature. The multi-lamination mixer was used to study the changes in the secondary structure of beta-Lactoglobulin in deuterated phosphate buffer under varying physicochemical conditions by time-resolved FTIR spectroscopy using focal plane array detection. Upon a pH jump from pH 2 to neutral pH, a gradual loss of alpha-helical content, accompanied by an increase in random coils and turns was observed within 2 ms of mixing. In a second kinetic experiment, mixing of a neutral-pH solution of beta-Lactoglobulin with a 60% trifluoroethanol solution resulted in the formation of an alpha-helical intermediate with an accompanying increase in intramolecular beta-sheet structure within 500 mus of mixing. These results indicate that the multi-lamination mixer designed and fabricated in this study is well suited for investigations of protein dynamics on the micro- to millisecond timescale by time-resolved FTIR spectroscopy.
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