Terahertz dynamic aperture imaging at stand-off distances using a Compressed Sensing protocol
Abstract
In this text, results of a 0.35 terahertz (THz) dynamic aperture imaging approach are presented. The experiments use an optical modulation approach and a single pixel detector at a stand-off imaging distance of approx 1 meter. The optical modulation creates dynamic apertures of 5cm diameter with approx 2000 individually controllable elements. An optical modulation approach is used here for the first time at a large far-field distance, for the investigation of various test targets in a field-of-view of 8 x 8 cm. The results highlight the versatility of this modulation technique and show that this imaging paradigm is applicable even at large far-field distances. It proves the feasibility of this imaging approach for potential applications like stand-off security imaging or far field THz microscopy.
Cite
@article{arxiv.1902.07935,
title = {Terahertz dynamic aperture imaging at stand-off distances using a Compressed Sensing protocol},
author = {Sven Augustin and Peter Jung and Sven Frohmann and Heinz-Wilhelm Huebers},
journal= {arXiv preprint arXiv:1902.07935},
year = {2019}
}
Comments
9 pages, 13 figures