Presentation
10 March 2020 High-power cavity-based terahertz photoconductive sources for real-time terahertz imaging (Conference Presentation)
Jacques Hawecker, Valentino Pistore, Amalya Minasyan, Kenneth Maussang, José Palomo, Isabelle Sagnes, Raffaele Colombelli, Jerome Tignon, Juliette Mangeney, Sukhdeep Dhillon
Author Affiliations +
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.
Conference Presentation
© (2020) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Jacques Hawecker, Valentino Pistore, Amalya Minasyan, Kenneth Maussang, José Palomo, Isabelle Sagnes, Raffaele Colombelli, Jerome Tignon, Juliette Mangeney, and Sukhdeep Dhillon "High-power cavity-based terahertz photoconductive sources for real-time terahertz imaging (Conference Presentation)", Proc. SPIE 11288, Quantum Sensing and Nano Electronics and Photonics XVII, 112881M (10 March 2020); https://doi.org/10.1117/12.2546413
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KEYWORDS
Terahertz radiation

Millimeter wave imaging

Nondestructive evaluation

Real time imaging

Cryogenics

Diffraction

Quantum cascade lasers

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