Self-pulse-shaping Coherent Control Of Excitons In A Semiconductor Microcavity

Theodore B. Norris, June‐Koo Kevin Rhee, D. S. Citrin +2 more

D. S. Citrin

The coherent control of the exciton population in quantum wells (QW's) is considered. For cavity-free QW's a $0\ensuremath{\pi}$ pulse leaves the QW empty of excitons subsequent to its passage. For the microcavity, in addition to certain $0\ensuremath{\pi}$ pulses, specially tailored pulses with nonzero area are also optimal. The coherent depopulation is a strong-coupling effect and is due to the $\ensuremath{\pi}$ phase shift in the self-consistent Maxwell field (i.e., including the local-field effect associated with the exciton resonance) in the cavity that occurs in the course of a vacuum-field Rabi flop.

David S. Citrin

Heberle et al. demonstrated the use of phase-controlled optical pulse pairs to populate coherently and then to depopulate a quantum well (QW) with excitons on a 100-fs time-scale.1 In these experiments, one uses a pair of time-delayed identical pulses but with various relative phase shifts.

Michael Woerner

Kazuhiro Komori, T. Asahara, Takeyoshi Sugaya +2 more

Coherent control of excitons in semiconductors require a sophisticated control method namely the pulse shaping technique. In this paper, we report the manipulation of coherent excitons in single and coupled quantum well structure using phase-locked femtosecond pulses generated by a pulse shaping technique.

Per Stenius