Finite-difference time-domain simulation of ultrashort pulse propagation incorporating quantum-mechanical response functions

Julie A. Gruetzmacher, Norbert F. Scherer
2003 Optics Letters  
A semiclassical implementation of the finite-difference time-domain method is used to simulate coherent linear propagation of ultrashort mid-infrared pulses through optically dense samples of isotropically diluted liquid water. Bloch equations for the density matrix are used as a simple model of the O -H oscillator relaxation, and the algorithm is extended to other response functions. Sensitivity of the field to the form of the response function is demonstrated, and the results are compared
more » ... ts are compared with experimentally determined electric fields in the same media [Rev. Sci. Instrum. 73, 2227].
doi:10.1364/ol.28.000573 pmid:12696619 fatcat:mpebchmcp5a4lhdwfjsqe5fdya