Excitonic wave packet dynamics in semiconductor photonic-crystal structures

B. Pasenow, M. Reichelt, T. Stroucken, T. Meier, Stephan W Koch

Research output: Contribution to journalArticle

8 Citations (Scopus)

Abstract

Significant aspects of the light-matter interaction can be strongly modified in suitably designed systems consisting of semiconductor nanostructures and dielectric photonic crystals. To analyze such effects, a microscopic theory is presented, which is capable of describing the optoelectronic properties of such hybrid systems via a self-consistent solution of the dynamics of the optical field and the photoexcitations of the material. The theory is applied to investigate the local excitonic resonances, which arise as a consequence of the modified Coulomb interaction in the vicinity of a structured dielectric medium. The excitation of a coherent superposition of the spatially inhomogeneous optical transitions induces an intricate wave packet dynamics. In the presence of dephasing and relaxation processes, the coherent oscillations are damped and the photoexcited carriers relax into spatially inhomogeneous quasi-equilibrium distributions.

Original languageEnglish (US)
Article number195321
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume71
Issue number19
DOIs
StatePublished - 2005
Externally publishedYes

Fingerprint

Wave packets
Photonic crystals
wave packets
Crystal structure
photonics
Semiconductor materials
crystal structure
Optical transitions
Photoexcitation
Relaxation processes
Coulomb interactions
Hybrid systems
photoexcitation
optical transition
Optoelectronic devices
Nanostructures
interactions
oscillations
excitation
crystals

ASJC Scopus subject areas

  • Condensed Matter Physics

Cite this

Excitonic wave packet dynamics in semiconductor photonic-crystal structures. / Pasenow, B.; Reichelt, M.; Stroucken, T.; Meier, T.; Koch, Stephan W.

In: Physical Review B - Condensed Matter and Materials Physics, Vol. 71, No. 19, 195321, 2005.

Research output: Contribution to journalArticle

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