Excitation dependence of resonance line self-broadening at different atomic densities

Abstract

We study the dipole-dipole spectral broadening of a resonance line at high atomic densities when the self-broadening dominates. The selective reflection spectrum of a weak probe beam from the interface of the cell window and rubidium vapor are recorded in the presence of a far-detuned pump beam. The excitation due to the pump reduces the self-broadening. We found that the self-broadening reduction dependence on the pump power is atomic density independent. These results provide experimental evidence for the disordered exciton based theory of self-broadening, and can be useful for the description of the interaction of a strong optical field with a dense resonance medium.

arXiv comment4 pages, 6 figures

References in corpus (1)

• Observation of narrow Autler-Townes components in the resonant response of a dense atomic gas

Cited by in corpus (4)

• Reflection of resonant light from a plane surface of an ensemble of motionless point scatters: Quantum microscopic approach
• Long range dipole-dipole interaction in atomic vapors probed by double-quantum two-dimensional coherent spectroscopy
• Optical-field-induced dips and splits in nonlinear spectra of selective reflection from high-density atomic vapor
• Self-focusing of CW Laser Beam with Variable Radius in Rubidium Atomic Vapor