High-performance TeraHertz detectors for passive imaging

Published : 4 January 2017

The Terahertz (THz, 300 GHz-3 THz) frequency band triggers a high interest in numerous application domains (imaging, spectrometry, industrial inspection and test, surveillance, instrumentation) thanks to the good propagation properties through non-conductive materials, the presence of resonance frequencies typical of numerous molecules, the potential for high spatial resolution, and their non-ionizing properties. CEA-LETI is a world-leading research laboratory in THz technologies and developed several THz detectors and imaging circuits, both cooled and uncooled, for imaging applications. Recently, a THz imager was demonstrated and is in industrialization stage.

The objective of this PhD thesis is to investigate and develop a new THz detector technology with a significant breakthrough in terms of sensitivity enabling passive imaging applications. The PhD student will work in a team gathering all the expertise, instrumentation and facilities required in this project (system studies, design and simulation, fabrication, characterization) and will tackle all these activities in order to design new detectors, supervise their fabrication in CEA-LETI clean rooms and characterize them.

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