Ménard, J. M. and Porer, M. and Leitenstorfer, A. and Huber, R. and Degl'Innocenti, Riccardo and Zanotto, S. and Biasiol, G. and Sorba, L. and Tredicucci, A. (2013) Sub-cycle switching of a photonic bandstructure via ultrastrong light-matter coupling. In: 18th International Conference on Ultrafast Phenomena, UP 2012. EDP Sciences, CHE. ISBN 9782759809561
Full text not available from this repository.Abstract
Phase-locked multi-terahertz transients map out the full photonic bandstructure of a one-dimensional photonic crystal while a 12-fs control pulse activates ultrastrong interaction on a sub-cycle time scale with quantized electronic transitions in semiconductor quantum wells. We trace the build-up dynamics of a large vacuum Rabi splitting and observe an unexpected asymmetric formation of the upper and lower polariton bands. The pronounced flattening of the photonic bands causes a slow-down of the group velocity by one order of magnitude on the time scale of the oscillation period of light.