Regensburg 2013 – wissenschaftliches Programm

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HL: Fachverband Halbleiterphysik

HL 1: Tutorial: Coherent Control

HL 1.3: Tutorium

Sonntag, 10. März 2013, 17:20–17:55, H2

Coherent control of ultrafast electron dynamics — •Matthias Wollenhaupt — Universität Kassel

Exploiting the coherence properties of laser light along with quantum mechanical interferences of matter waves in order to steer a quantum system into a pre-defined target channel is at the heart of coherent control [1]. The increasing availability of laser sources operating on the time scale of molecular dynamics, i.e. the femtosecond regime, and the increasing capabilities of shaping light in terms of amplitude, phase and polarization (down to zeptosecond precision [2]) brought the temporal aspect of this field to the fore. In this tutorial on coherent control we will shortly review some of the physical principles of coherent control, present some pertinent examples and perspectives of current experimental efforts in controlling electronic excitations with tailored light fields such as the creation of designer electron wave packets [3,4] and charge oscillation driven chemistry [5,6]. [1] M. Wollenhaupt and T. Baumert, Faraday Discuss 153, 9 (2011). [2] J. Köhler et al., Opt Express 19, 11638 (2011). [3] M. Wollenhaupt et al., Appl Phys B 95, 245 (2009). [4] M. Wollenhaupt, M. Krug, and T. Baumert, Phys Journ 11, 37 (2012). [5] M. Wollenhaupt et al., Chem Phys Lett 419, 184 (2006). [6] T. Bayer, M. Wollenhaupt, and T. Baumert, J Phys B 41, 074007-13 (2008).