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.

Sub-cycle switching of a photonic bandstructure via ultrastrong light-matter coupling

TREDICUCCI, ALESSANDRO
2013

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.
2013
18th International Conference on Ultrafast Phenomena
Lausanne, SWITZERLAND
JUL 08-13, 2012
XVIIITH INTERNATIONAL CONFERENCE ON ULTRAFAST PHENOMENA
E D P SCIENCES
9782759809561
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11384/84561
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