title: Interference effects in transient Kerr spectra of a semiconductor multilayer structure.
abstract: We experimentally study the spectra of the transient Faraday and Kerr effects near exciton resonances of a GaAs multiple quantum well. A multilayer calculation with a transfer matrix model accounts quantitatively for the linear transmission (reflectivity) spectra and the Faraday (Kerr) spectra. The Faraday and Kerr spectra do not obey a Kramers-Kronig relation. This phenomenon was found to be due to the multiple reflection effects on the Kerr spectra.
authors.affiliation: JILA, University of Colorado and National Institute of Standards and Technology, and Department of Physics, University of Colorado, Boulder, Colorado 80309-0440, USA.
authors.forename: Zhigang
authors.initials: Z
authors.lastname: Chen
authors.forename: Rudolf
authors.initials: R
authors.lastname: Bratschitsch
authors.forename: Steven T
authors.initials: ST
authors.lastname: Cundiff