Sub-cycle switch-on of ultrastrong light–matter interaction

G. Günter, A. A. Anappara, J. Hees, A. Sell, G. Biasiol, L. Sorba, S. De Liberato, C. Ciuti, A. Tredicucci, A. Leitenstorfer and R. Huber ()
Additional contact information
G. Günter: University of Konstanz, Universitätsstraße 10
A. A. Anappara: University of Konstanz, Universitätsstraße 10
J. Hees: University of Konstanz, Universitätsstraße 10
A. Sell: University of Konstanz, Universitätsstraße 10
G. Biasiol: Laboratorio Nazionale TASC CNR-INFM, Area Science Park, I-34012 Trieste, Italy
L. Sorba: Laboratorio NEST, CNR-INFM and Scuola Normale Superiore, Piazza San Silvestro 12, I-56127 Pisa, Italy
S. De Liberato: Laboratoire Matériaux et Phénomènes Quantiques, Université Paris Diderot-Paris 7, Case 7021, Bâtiment Condorcet, 75205 Paris, France
C. Ciuti: Laboratoire Matériaux et Phénomènes Quantiques, Université Paris Diderot-Paris 7, Case 7021, Bâtiment Condorcet, 75205 Paris, France
A. Tredicucci: Laboratorio NEST, CNR-INFM and Scuola Normale Superiore, Piazza San Silvestro 12, I-56127 Pisa, Italy
A. Leitenstorfer: University of Konstanz, Universitätsstraße 10
R. Huber: University of Konstanz, Universitätsstraße 10

Nature, 2009, vol. 458, issue 7235, 178-181

Abstract: Dynamics of light and matter The interaction between light and matter at a fundamental level has been studied intensively in the past two decades using cavity quantum electrodynamics, in which light confined in a reflective microcavity interacts with atoms and other particles. Something that has not been widely studied, however, is how the coupling of light and matter evolves with time. Günter et al. have now developed a time-resolved measurement set-up in which strong light–matter coupling can be switched on in a semiconductor quantum-well structure as rapidly as within one cycle of light. This makes it possible to monitor the conversion of a population of bare photons to polaritons during abrupt switching. The technique lends itself to the study of phenomena such as the generation of quantum vacuum radiation, reminiscent of the dynamical Casimir effect, and Hawking radiation of black holes.

Date: 2009
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DOI: 10.1038/nature07838

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