Thursday, July 19, 2018

Abstract-Modeling of an active terahertz imaging system in brownout conditions




Clotilde Prophète, Romain Pierrat, Hervé Sik, Emmanuel Kling, Rémi Carminati, and Julien de Rosny

https://www.osapublishing.org/ao/abstract.cfm?uri=ao-57-21-6017

We present a theoretical evaluation of a subterahertz (subTHz) system to image through a scattering medium composed of scatterers of sizes close to the wavelength. We specifically study the case of sand grain clouds created by helicopter rotor airflow during landing in arid areas. The different powers received by one pixel of a matrix made of subTHz sensors are identified. Photometric and antenna-based sensors are considered. Besides the thermal contribution to the noise, we focus our attention on the radiation backscattered by the brownout. It appears that a configuration where the source and the camera are distant is the most promising configuration and is realistic for embedded systems.
© 2018 Optical Society of America

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