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ThinkMind // SENSORDEVICES 2011, The Second International Conference on Sensor Device Technologies and Applications // View article sensordevices_2011_6_20_20200


Detection of Infrared Radiation by Position-sensitive Superconducting Bolometer

Authors:
Francesco Laviano
Luca Mesin
Roberto Gerbaldo
Gianluca Ghigo
Laura Gozzelino
Enrica Mezzetti
Alberto Rovelli

Keywords: Real-time sampling, superconducting devices, superconducting films, THz detector, neural networks

Abstract:
Infrared sensors are fundamental building blocks of strategic applications such as atmospheric gas monitoring, thermal imaging and telecommunications. While single frequency applications can employ resonant devices that have high resolution and high sensitivity, broad-band infrared detection relies on bolometric sensors. In this paper, we present a high-temperature superconducting sensor whose structural and electrical properties are locally modified by heavy-ion irradiation, in order to obtain position-sensitive broad band infrared detection. The bolometer, biased with constant current, responds to infrared radiation (from near to far-infrared spectra), with a dissipative voltage signal that can be monitored in real-time with a standard voltmeter. The digitized signal is processed with artificial neural networks (ANN) in order to correct for thermal and electronic noise contributions. Once trained, the ANN can be applied to new detected data and process them in real-time. In this way, real-time, position-sensitive detection of broad-band infrared radiation is achieved.

Pages: 95 to 98

Copyright: Copyright (c) IARIA, 2011

Publication date: August 21, 2011

Published in: conference

ISSN: 2308-3514

ISBN: 978-1-61208-145-8

Location: Nice/Saint Laurent du Var, France

Dates: from August 21, 2011 to August 27, 2011

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