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Saturated dispersion resonance observed in the width of a He-Ne laser beam with an intracavity neon cell

  • Lasers and Their Applications
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Abstract

A narrow dispersion-like resonance is found in the width of the beam of a He-Ne laser with an intracavity neon cell. The width of the beam was determined by measuring the difference between the power in its axial circular zone and in an adjacent coaxial zone of annular shape. The zones were selected by spatial division of the beam power in half by a mirror with a circular aperture. The resonance obtained is spectrally locked to the center of the neon absorption line and is interpreted as a result of action of the nonlinear lens of the refractive index in the neon. By comparing the experimental data with the numerical model of Gaussian beam formation, the nonlinear lens component of the refractive index of neon is estimated.

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Authors and Affiliations

  1. Institute of Physics, St. Petersburg State University, Peterhof, 198504, Russia

    A. G. Druzhinin & A. V. Mironov

Authors
  1. A. G. Druzhinin
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  2. A. V. Mironov
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Translated from Optika i Spektroskopiya, Vol. 96, No. 2, 2004, pp. 345–351.

Original Russian Text Copyright © 2004 by Druzhinin, Mironov.

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Druzhinin, A.G., Mironov, A.V. Saturated dispersion resonance observed in the width of a He-Ne laser beam with an intracavity neon cell. Opt. Spectrosc. 96, 305–311 (2004). https://doi.org/10.1134/1.1651259

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  • DOI: https://doi.org/10.1134/1.1651259

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