Optics and Spectroscopy

, Volume 100, Issue 3, pp 419–424

A saturable absorber, coherent population oscillations, and slow light

  • V. S. Zapasskiĭ
  • G. G. Kozlov
Nonlinear and Quantum Optics

DOI: 10.1134/S0030400X06030192

Cite this article as:
Zapasskiĭ, V.S. & Kozlov, G.G. Opt. Spectrosc. (2006) 100: 419. doi:10.1134/S0030400X06030192


The paper presents a critical analysis of publications on one of the methods of creating so-called slow light (light with an anomalously low group velocity) arising due to a high steepness of the refractive index dispersion curve. The method employs, for this purpose, the effect of coherent population oscillations accompanied by burning of a narrow spectral hole in the homogeneously broadened absorption spectrum. The interpretation of the experimental data in the studies under consideration is based on the analysis of the response of a nonlinear medium to a low-frequency intensity modulation of the propagating light beam. We show that all the observations of these papers can be easily interpreted in the framework of the simplest model of a saturable absorber and have nothing to do with the hole burning effect or group velocity reduction.

PACS numbers


Copyright information

© Pleiades Publishing, Inc. 2006

Authors and Affiliations

  • V. S. Zapasskiĭ
    • 1
  • G. G. Kozlov
    • 1
  1. 1.All-Russia Research Center Vavilov State Optical InstituteSt. PetersburgRussia