English

Non-degenerate four-wave mixing in rubidium vapor: transient regime

Optics 2015-05-20 v1 Atomic Physics Quantum Physics

Abstract

We investigate the transient response of the generated light from Four-Wave Mixing (FWM) in the diamond configuration using a step-down field excitation. The transients show fast decay times and oscillations that depend on the detunings and intensities of the fields. A simplified model taking into account the thermal motion of the atoms, propagation, absorption and dispersion effects shows qualitative agreement with the experimental observations with the energy levels in rubidium (5S1/2, 5P1/2, 5P3/2 and 6S1/2). The atomic polarization comes from all the contributions of different velocity classes of atoms in the ensemble modifying dramatically the total transient behavior of the light from FWM.

Keywords

Cite

@article{arxiv.1010.1122,
  title  = {Non-degenerate four-wave mixing in rubidium vapor: transient regime},
  author = {F. E. Becerra and R. T. Willis and S. L. Rolston and H. J. Carmichael and L. A. Orozco},
  journal= {arXiv preprint arXiv:1010.1122},
  year   = {2015}
}

Comments

11 pages, 11 figures, to be published in Physical Review A