• DOI:10.1103/PhysRevA.91.052501
• Corpus ID: 51842999

Evaluation of optical probe signals from nonequilibrium systems

@article{Agarwalla2015EvaluationOO,
  title={Evaluation of optical probe signals from nonequilibrium systems},
  author={Bijay Kumar Agarwalla and Konstantin E. Dorfman and Shaul Mukamel},
  journal={Physical Review A},
  year={2015},
  volume={91},
  pages={052501}
}

• B. Agarwalla, K. Dorfman, S. Mukamel
• Published 28 March 2015
• Physics
• Physical Review A

We predict several effects associated with the optical response of systems prepared in a nonequilibrium state by impulsive optical excitations. The linear response depends on the phase of the electric field even if the initial nonequilibrium state has only populations, no coherences. Initial quantum coherences induce additional phase dependence, which also shows new resonances in nonlinear wave mixing. In systems strongly driven by an external optical field, the field frequency generates a phase-dependent probe absorption. This gives further control to manipulate the relative contribution to the linear signal due to initial populations and coherences.