Collision and static widths of self-broadened line shapes in optically saturated high-density atomic vapor

Vladimir Sautenkov; Sergey Saakyan; Andrei Bobrov; Eugenia Vilshanskaya; Boris B. Zelener

Collision and static widths of self-broadened line shapes in optically saturated high-density atomic vapor

Atomic Physics 2026-07-08 v1

Authors: Vladimir Sautenkov , Sergey Saakyan , Andrei Bobrov , Eugenia Vilshanskaya , Boris B. Zelener

Abstract

We study the frequency derivatives of selective reflection from high-density rubidium vapor using a hole-burning technique. Saturation dips are observed inside the self-broadened line shapes. The line self-broadening is a combination of static width and collision width. By analyzing saturation dips, we can separate power broadening and collision width. Our experimental results support the theory of inhomogeneous dipole-dipole induced broadening of transitions in a dense atomic gas, published by J. A. Leegwater and S. Mukamel [Phys. Rev. A 49 (1994) 146].

Keywords

optical saturation self-broadening line shape frequency derivative dipole-dipole broadening high-density atomic vapor

Cite

@article{arxiv.2607.07303,
  title  = {Collision and static widths of self-broadened line shapes in optically saturated high-density atomic vapor},
  author = {Vladimir Sautenkov and Sergey Saakyan and Andrei Bobrov and Eugenia Vilshanskaya and Boris B. Zelener},
  journal= {arXiv preprint arXiv:2607.07303},
  year   = {2026}
}