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Proceedings Paper

High-power cavity-based terahertz photoconductive sources for real-time terahertz imaging (Conference Presentation)
Author(s): Jacques Hawecker; Valentino Pistore; Amalya Minasyan; Kenneth Maussang; José Palomo; Isabelle Sagnes; Raffaele Colombelli; Jerome Tignon; Juliette Mangeney; Sukhdeep Dhillon

Paper Abstract

Reaching high average powers and room temperature operation for THz sources has become the key challenge for the uptake of THz applications that require real-time imaging. In this work, we show that by placing a photoconductive switch within a quasi-resonant cavity based on a metal-insulator-metal geometry, we are able to generate, at room temperature, average THz powers greater than of 200 µW, with the frequency of the THz emission centred at 1.5THz, specifications ideally adapted to NDT. We demonstrate proof-of-principle real-time THz imaging.

Paper Details

Date Published: 10 March 2020
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Proc. SPIE 11288, Quantum Sensing and Nano Electronics and Photonics XVII, 112881M (10 March 2020); doi: 10.1117/12.2546413
Show Author Affiliations
Jacques Hawecker, Lab. de Physique de l'ENS (France)
Valentino Pistore, Lab. de Physique de l'ENS (France)
Amalya Minasyan, i2S SA (France)
Kenneth Maussang, Lab. de Physique de l'ENS (France)
José Palomo, Lab. de Physique de l'ENS (France)
Isabelle Sagnes, Ctr. de Nanosciences et de Nanotechnologies (France)
Raffaele Colombelli, Ctr. de Nanosciences et de Nanotechnologies (France)
Jerome Tignon, Lab. de Physique Statistique de l'ENS (France)
Juliette Mangeney, Lab. de Physique de l'ENS (France)
Sukhdeep Dhillon, Lab. de Physique Statistique de l'ENS (France)


Published in SPIE Proceedings Vol. 11288:
Quantum Sensing and Nano Electronics and Photonics XVII
Manijeh Razeghi; Jay S. Lewis; Giti A. Khodaparast; Pedram Khalili, Editor(s)

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