2019/02/21 by Sven Augustin, Augustin, Sven, Peter Jung +5
Engineering · Physics and Astronomy · #FOS: Electrical engineering #FOS: Physical sciences #Image and Video Processing (eess.IV) #Instrumentation and Detectors (physics.ins-det) #Photonic and Optical Devices #Superconducting and THz Device Technology #Terahertz technology and applications #electronic engineering #information engineering
paper · pdf · doi:10.48550/arxiv.1902.07935
openalex publication_date 2019/02/21 · openalex created_date 2022/07/29 · openalex updated_date 2026/07/28
In this text, results of a 0.35 terahertz (THz) dynamic aperture imaging\napproach are presented. The experiments use an optical modulation approach and\na single pixel detector at a stand-off imaging distance of approx 1 meter. The\noptical modulation creates dynamic apertures of 5cm diameter with approx 2000\nindividually controllable elements. An optical modulation approach is used here\nfor the first time at a large far-field distance, for the investigation of\nvarious test targets in a field-of-view of 8 x 8 cm. The results highlight the\nversatility of this modulation technique and show that this imaging paradigm is\napplicable even at large far-field distances. It proves the feasibility of this\nimaging approach for potential applications like stand-off security imaging or\nfar field THz microscopy.\n