Prevention of decoherence by two femtosecond chirped pulse trains.
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.
Malinovskaya
Svetlana A
SA
Department of Physics and Engineering Physics, Stevens Institute of Technology, Hoboken, NJ 07030, USA. smalinov@stevens.edu