Regensburg 2016 – wissenschaftliches Programm

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HL: Fachverband Halbleiterphysik

HL 36: Poster Ib

HL 36.36: Poster

Dienstag, 8. März 2016, 15:00–19:00, Poster A

Exciton-Polariton Propagation in CdZnTe — Jan Lohrenz¹, Stephan Melzer¹, Claudia Ruppert¹, Ilya Akimov¹, Matthias Reichelt², •Alexander Trautmann², Torsten Meier², and Markus Betz¹ — ¹Experimentelle Physik 2, TU Dortmund, Otto-Hahn-Str. 4, 44221 Dortmund, Germany — ²Department of Physics and CeOPP, University of Paderborn, Warburger Str. 100, D-33098 Paderborn, Germany

In bulk CdZnTe light is significantly slowed down in a spectral range close to the lower exciton-polariton (LP) branch. [1] We present different methods for modelling light pulses centered near the LP resonance, i.e., numerical and analytical approaches allowing for slow light propagation and the diffusion of the wave packet. [2] These light fields are used to interpret nonlinear optical signatures in a recently performed ultrafast pump-probe experiment. [3]

[1] T. Godde, I. A. Akimov, D. R. Yakovlev, H. Mariette, and M. Bayer, Phys. Rev. B 82, 115332 (2010).
[2] A. Trautmann, Bachelor Thesis, University of Paderborn, submitted.
[3] J. Lohrenz, S. Melzer, C. Ruppert, I.A. Akimov, M. Reichelt, A. Trautmann, T. Meier, M. Betz, to be published.