Abstract
The authors study the polarisation properties of the dynamical Stark effect of excitons in semiconductor quantum wells. They start from a four-band density matrix theory involving the heavy- and light-hole band and the two lowest conduction subbands. The set of equations of motion contains the dynamics relevant for both Frohlich-type experiments (pumping with a carbon dioxide laser) and the case of pumping a few exciton rydbergs below the exciton line. The authors perform the relevant projections based on excitonic eigenstates and study the resulting 'few-level' systems. From this they calculate the change in the susceptibility tensor with respect to a weak probe beam caused by a pump beam with specified polarisation and frequency.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
