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Proceedings Paper

Quantization of polarization states through scattering mechanisms
Author(s): Glafkos Stratis; Alphonso Samuel; Salvatore Bellofiore; Mary Cassabaum; Ghassan Maalouli; Allen Taflove; Aggelos K. Katsaggelos; Chris Penney
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Paper Abstract

In this paper, we introduce a new technique that relates the split of polarization states through various scattering mechanisms. We use the finite-difference time domain (FDTD) method in our computations since, by its nature, FDTD can model an ultrawide band source and can separate the various scattering mechanisms by exploiting causality. The key idea is that, once a non-monochromatic wave is incident upon a scattering object, the various spectral components will be differently depolarized upon scattering depending upon the shape and material composition of the object. In the case studied here, all of the impinging spectral components are co-polarized (whereas arbitrary polarization distributions are permitted more generally). Fundamentally, we are exploring a concept similar to the split or quantization of energy states in quantum mechanics. We first introduce the concept of the quantization of polarization states, and then we explain the formulation of the "State Space Matrix" in relationship to the polarization gaps. Once the technique is introduced, we demonstrate its potential applications to realistic problems such as materials detection.

Paper Details

Date Published: 27 April 2010
PDF: 9 pages
Proc. SPIE 7669, Radar Sensor Technology XIV, 766913 (27 April 2010); doi: 10.1117/12.851396
Show Author Affiliations
Glafkos Stratis, Raytheon Missile Systems (United States)
Alphonso Samuel, Raytheon Missile Systems (United States)
Salvatore Bellofiore, Raytheon Missile Systems (United States)
Mary Cassabaum, Raytheon Missile Systems (United States)
Ghassan Maalouli, Raytheon Missile Systems (United States)
Allen Taflove, Northwestern Univ. (United States)
Aggelos K. Katsaggelos, Northwestern Univ. (United States)
Chris Penney, Remcom Inc. (United States)

Published in SPIE Proceedings Vol. 7669:
Radar Sensor Technology XIV
Kenneth I. Ranney; Armin W. Doerry, Editor(s)

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