Abstract
We have constructed a femtosecond optical parametric oscillator in order to perform transient four-wave-mixing experiments on (InGa)As/InP quantum well superlattice structures in the 1160–1300 nm wavelength region. The dependence of the low temperature exciton dephasing rate on sample parameters and temperature is investigated. The observed temperature dependence indicates disorder induced localization of excitons, which is consistent with inhomogeneous broadening of the exciton emission and absorption lines. In addition, we observe quantum beats in the FWM decay and attribute them to localized and bound excitons.
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.
