Controlling the polarization dynamics by strong THz fields in photoexcited germanium quantum wells

The interaction of strong single-cycle THz pulses with the optically induced polarization in germanium quantum wells is studied. With increasing THz field strength, it is observed that the excitonic resonances shift toward higher energy and broaden before weak signatures of a splitting of the excito...

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Bibliographic Details
Main Authors: Niko S Köster, Andrea C Klettke, Benjamin Ewers, Ronja Woscholski, Stefano Cecchi, Daniel Chrastina, Giovanni Isella, Mackillo Kira, Stephan W Koch, Sangam Chatterjee
Format: Article
Language:English
Published: IOP Publishing 2013-01-01
Series:New Journal of Physics
Online Access:https://doi.org/10.1088/1367-2630/15/7/075004