Phase-Insensitive Scattering of Terahertz Radiation
AbstractThe 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. View Full-Text
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Petev, M.; NiclasWesterberg; Rubino, E.; Moss, D.; Couairon, A.; Légaré, F.; Morandotti, R.; Faccio, D.; Clerici, M. Phase-Insensitive Scattering of Terahertz Radiation. Photonics 2017, 4, 7.
Petev M, NiclasWesterberg, Rubino E, Moss D, Couairon A, Légaré F, Morandotti R, Faccio D, Clerici M. Phase-Insensitive Scattering of Terahertz Radiation. Photonics. 2017; 4(1):7.Chicago/Turabian Style
Petev, Mihail; NiclasWesterberg; Rubino, Eleonora; Moss, Daniel; Couairon, Arnaud; Légaré, François; Morandotti, Roberto; Faccio, Daniele; Clerici, Matteo. 2017. "Phase-Insensitive Scattering of Terahertz Radiation." Photonics 4, no. 1: 7.
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