title: Prevention of decoherence by two femtosecond chirped pulse trains.
abstract: We study the vibrational energy relaxation (VER) and collisional dephasing as channels of coherence loss in a vibrational mode that is selectively excited using chirped pulse adiabatic passage in the Raman configuration. Based on the dressed state picture analysis we propose a method to reduce decoherence using femtosecond chirped pulse trains. When applied with a period close to the VER time, the pulse trains allow one to sustain high coherence in the selected vibrational mode.
authors.affiliation: Department of Physics and Engineering Physics, Stevens Institute of Technology, Hoboken, NJ 07030, USA. smalinov@stevens.edu
authors.forename: Svetlana A
authors.initials: SA
authors.lastname: Malinovskaya