Misha Stepanov | publications | Phys. Rev. Lett. (1995)

E. V. Podivilov, D. A. Shapiro, M. G. Stepanov, Narrowing of the Bennett hole in collisional plasma, Physical Review Letters 74 (20) 3979–3982 (1995).

DOI: 10.1103/PhysRevLett.74.3979
arXiv: plasm-ph/9503002
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The profile of Bennett hole induced by laser field in ionic distribution is calculated. It is shown that the narrowing of the hole occurs with increase of the pumping field detuning frequency. Physical cause of the effect is the falling dependence of Coulomb collision frequency on the ionic velocity. Estimations demonstrate that the effect is quite observable under conditions of high‑current gas‑discharge plasma.