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Proceedings Paper

Removal of water-vapor-induced fluctuations in T-ray signals: a preliminary study
Author(s): W. Withayachumnankul; B. M. Fischer; S. P. Mickan; D. Abbott
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Paper Abstract

In an open-air setting, one source of fluctuations in a T-ray (THz) pulsed signal is attributed to water vapor. Fluctuations of this type are generally undesired, and so the water vapor is commonly removed in a closed chamber. Yet, in some applications a closed chamber is not feasible. This paper presents a preliminary study on a computational means to address the problem. Initially, the complex frequency response of water vapor is modeled from spectral line data. Using a deconvolution technique, together with fine tuning of the line strength at each frequency, the response is partially removed from a measured T-ray pulse, with minimal signal distortion.

Paper Details

Date Published: 13 June 2007
PDF: 12 pages
Proc. SPIE 6603, Noise and Fluctuations in Photonics, Quantum Optics, and Communications, 660323 (13 June 2007); doi: 10.1117/12.724616
Show Author Affiliations
W. Withayachumnankul, The Univ. of Adelaide (Australia)
B. M. Fischer, The Univ. of Adelaide (Australia)
S. P. Mickan, The Univ. of Adelaide (Australia)
D. Abbott, The Univ. of Adelaide (Australia)

Published in SPIE Proceedings Vol. 6603:
Noise and Fluctuations in Photonics, Quantum Optics, and Communications
Leon Cohen, Editor(s)

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