Pulse Function for Control of the Coherent Excitation in Stimulated Raman Spectroscopy

摘要

A selective excitation of closely spaced Raman transitions using femtosecond pulse shaping is studied within a semiclassical approach.An analytical pulse function is proposed having duration T that selectively excites one of two transitions separated by a frequency interval less than 1/T.It is shown that,for intense fields,both the field amplitude and pulse frequency spectrum have to be carefully chosen to achieve the control of excitations.