Petev, M., Westerberg, N. , Rubino, E., Moss, D., Couairon, A., Légaré, F., Morandotti, R., Faccio, D. and Clerici, M. (2017) Phase-insensitive scattering of terahertz radiation. Photonics Spectra, 4(1), 7. (doi: 10.3390/photonics4010007)
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Publisher's URL: http://www.mdpi.com/2304-6732/4/1/7
Abstract
The nonlinear interaction between Near-Infrared (NIR) and Terahertz pulses is principally investigated as a means for the detection of radiation in the hardly accessible THz spectral region. Most studies have targeted second-order nonlinear processes, given their higher efficiencies, and only a limited number have addressed third-order nonlinear interactions, mainly investigating four-wave mixing in air for broadband THz detection. We have studied the nonlinear interaction between THz and NIR pulses in solid-state media (specifically diamond), and we show how the former can be frequency-shifted up to UV frequencies by the scattering from the nonlinear polarisation induced by the latter. Such UV emission differs from the well-known electric field-induced second harmonic (EFISH) one, as it is generated via a phase-insensitive scattering, rather than a sum- or difference-frequency four-wave-mixing process.
Item Type: | Articles |
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Status: | Published |
Refereed: | Yes |
Glasgow Author(s) Enlighten ID: | Clerici, Professor Matteo and Faccio, Professor Daniele and Westerberg, Dr Niclas |
Authors: | Petev, M., Westerberg, N., Rubino, E., Moss, D., Couairon, A., Légaré, F., Morandotti, R., Faccio, D., and Clerici, M. |
College/School: | College of Science and Engineering > School of Engineering > Electronics and Nanoscale Engineering College of Science and Engineering > School of Physics and Astronomy |
Journal Name: | Photonics Spectra |
Publisher: | Laurin Publishing Co., Inc. |
ISSN: | 0731-1230 |
Published Online: | 31 January 2017 |
Copyright Holders: | Copyright © 2017 The Authors |
First Published: | First published in Photonics Spectra 4(1):7 |
Publisher Policy: | Reproduced under a Creative Commons License |
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