Skip to main content
Article
Multimode Illumination in the Terahertz for Elimination of Target Orientation Requirements and Minimization of Coherent Effects in Active Imaging Systems
Optical Engineering
  • Douglas T. Petkie, Wright State University - Main Campus
  • Jennifer A. Holt
  • Mark A. Patrick
  • Frank C. De Lucia
Document Type
Article
Publication Date
5-16-2012
Abstract
It is shown that with appropriate multimode illumination and modulation strategies, it is possible to achieve the high sensitivity of active illumination, with the elimination of the need for “strategic” angular orientation of the target and to do so while minimizing the impact of coherent effects such as speckle. It is also shown that very modest terahertz (THz) power levels correspond to very high brightness temperatures, even when this power is divided among the many modes of large enclosures. We also consider how technical advances in the THz will continue to expand the scenarios of applicability for these approaches.
DOI
10.1117/1.OE.51.9.091604
Citation Information
Douglas T. Petkie, Jennifer A. Holt, Mark A. Patrick and Frank C. De Lucia. "Multimode Illumination in the Terahertz for Elimination of Target Orientation Requirements and Minimization of Coherent Effects in Active Imaging Systems" Optical Engineering Vol. 51 Iss. 9 (2012) ISSN: 00913286
Available at: http://works.bepress.com/douglas_petkie/46/