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Optical Bloch equations with dual photon excitation explain the polarization dependence of four wave mixing quantum beats by Wenfeng Wang; Jun Zhang; Daan Lenstra is a Engineering article available to read on EtoBox.
What is Optical Bloch equations with dual photon excitation explain the polarization dependence of four wave mixing quantum beats about?
We explain the polarization dependence of four wave mixing (FWM) quantum beats for semiconductors as essentially due to the spin phase correlations of photo-excited electrons, rather than to Coulomb interaction between the electrons. A theoretical analysis is given within the framework of optical Bloch equations for the light-semiconductor interactions and the Luttinger-Kohn model for the band structure. Residual Coulomb interactions between charge carriers are ignored. The results suggest that the polarization dependence of FWM quantum beats is a purely coherent effect of dual photon excitations, rather than, e.g., exciton-exciton Coulomb interaction. We show that the coherence transfer between the excited states is responsible for the FWM in a configuration with orthogonally polarized pump and probe.
Who reads Optical Bloch equations with dual photon excitation explain the polarization dependence of four wave mixing quantum beats?
It is typically read by researchers, students, and practitioners in Engineering.
- Author
- Wenfeng Wang; Jun Zhang; Daan Lenstra
- Publisher
- Elsevier Science; Elsevier ; Elsevier BV (ISSN 0030-4018)
- Published
- 2007
- Language
- EN
- Field
- Engineering (Physical Sciences)