Huber, Rupert and Kübler, C. and Vu, Q. T. and Haug, H. and Tübel, S. and Köhler, F. and Amann, M.-C. and Leitenstorfer, A.
Femtosecond Formation of Coupled Phonon-Plasmon Modes in InP:
Ultrabroadband THz Experiment and Quantum Kinetic Theory.
Physical Review Letters (PRL) 94, 027401.
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The ultrafast transition of an optical phonon resonance to a coupled phonon-plasmon system is studied. After 10-fs photoexcitation of i-InP, the buildup of coherent beats of the emerging hybrid modes is directly monitored via ultrabroadband THz spectroscopy. The anticrossing is mapped out as a function of time and density. A quantum kinetic theory of microscopic carrier-carrier and ...
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