B. Friederich
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High-Resolution Long-Range THz Imaging for Tunable Continuous-Wave Systems Open
Imaging in the terahertz frequency range has attracted growing interests since the first image of a leaf more than 20 years ago, due to its countless applications in basic and applied research, medical imaging, and nondestructive testing. …
Experimental Investigation of Terahertz Scattering: A Study of Non-Gaussianity and Lateral Roughness Influence Open
The scattering phenomenon caused by rough surfaces has a dominant role in shaping the reflected field at terahertz (THz) frequencies, both in specular and non-specular directions. Most surfaces in nature are randomly rough, and the surface…
Reference-Free Material Characterisation of Objects Based on Terahertz Ellipsometry Open
Material characterization in the 0.1 - 10 THz range has been a major topic of research since its first demonstration 30 years ago. Advances in terahertz generation, detection, and data acquisition have contributed to improved bandwidth, si…
High Resolution Lensless Terahertz Imaging and Ranging Open
In this paper, we propose a fast terahertz time-domain imaging method using a radar migration algorithm. We demonstrate high-resolution imaging in reflection without any collimating or focusing optics in the terahertz beam. In the proposed…