Author:
Neupane Chandra P.,Sylvester Jeremy,Singhapurage Helani A. S.,Mudiyanselage Dinusha M. S. R.,Ganikhanov Feruz
Abstract
Ultrafast decay of optical phonon has been studied in wide-bandgap BaSnO3 and SrTiO3 perovskites using a nonlinear spectroscopic technique. Measured phonon decay rates are within 1.4 – 2.3ps-1and can be explained within the framework of parametric phonon interactions.