Ultrafast low-energy dynamics of graphite studied by nonlinear multi-THz spectroscopy
Ultrafast low-energy dynamics of graphite studied by nonlinear multi-THz spectroscopy
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2013
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290876
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Ultrafast Quantum Physics in Amplitude and Phase - UltraPhase, ERC Advanced Grant
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XVIIIth International Conference on Ultrafast Phenomena : Lausanne, Switzerland, July 8-13, 2012 / Chergui, Majed et al. (ed.). - Les Ulis : EDP Sciences, 2013. - (EPJ Web of Conferences ; 41). - 04023. - eISSN 2100-014X. - ISBN 978-2-7598-0956-1
Abstract
Ultraintense few-cycle THz pulses are employed to study the nonlinear response of graphite. A phase sensitive 2D spectroscopy setup is capable of detecting pump-induced transient changes as well as multi-wave mixing processes. The observed strong THz-pump THz-probe signals provide insight into ultrafast dynamics and the spectral response of the low-energy carriers. Here we report the observation of a pump-induced transmission in graphite. The relaxation dynamics shows three distinct time scales, which are assigned to carrier thermalization, phonon emission and a slow cooling down back to equilibrium.
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530 Physics
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XVIIIth International Conference on Ultrafast Phenomena, Jul 8, 2012 - Jul 13, 2012, Lausanne
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SCHMIDT, Christian, Bernhard MAYER, Friederike JUNGINGER, Marc REBHOLZ, Alexander GRUPP, Daniele BRIDA, Rupert HUBER, Alfred LEITENSTORFER, Alexej PASHKIN, 2013. Ultrafast low-energy dynamics of graphite studied by nonlinear multi-THz spectroscopy. XVIIIth International Conference on Ultrafast Phenomena. Lausanne, Jul 8, 2012 - Jul 13, 2012. In: CHERGUI, Majed, ed. and others. XVIIIth International Conference on Ultrafast Phenomena : Lausanne, Switzerland, July 8-13, 2012. Les Ulis:EDP Sciences, 04023. eISSN 2100-014X. ISBN 978-2-7598-0956-1. Available under: doi: 10.1051/epjconf/20134104023BibTex
@inproceedings{Schmidt2013-03-13Ultra-41825, year={2013}, doi={10.1051/epjconf/20134104023}, title={Ultrafast low-energy dynamics of graphite studied by nonlinear multi-THz spectroscopy}, number={41}, isbn={978-2-7598-0956-1}, publisher={EDP Sciences}, address={Les Ulis}, series={EPJ Web of Conferences}, booktitle={XVIIIth International Conference on Ultrafast Phenomena : Lausanne, Switzerland, July 8-13, 2012}, editor={Chergui, Majed}, author={Schmidt, Christian and Mayer, Bernhard and Junginger, Friederike and Rebholz, Marc and Grupp, Alexander and Brida, Daniele and Huber, Rupert and Leitenstorfer, Alfred and Pashkin, Alexej}, note={Article Number: 04023} }
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