Doppler-Free Comb-Spectroscopy in Counter-Propagating Fields
American Journal of Modern Physics
Volume 2, Issue 4, July 2013, Pages: 223-226
Received: May 26, 2013;
Published: Jul. 10, 2013
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Sergey A. Pulkin, Saint-Petersburg State University,Dept.of General Physics 1 of Physical Faculty, Saint-Petersburg, Russia;Russia-Seoul Science, Seoul, Republic of Korea
GuangHoon Kim, Russia-Seoul Science, Seoul, Republic of Korea
Uk Kang, Russia-Seoul Science, Seoul, Republic of Korea
Vasiliy Arnautov, Saint-Petersburg State University,Dept.of General Physics 1 of Physical Faculty, Saint-Petersburg, Russia
Svetlana V. Uvarova, Saint-Petersburg State University,Dept.of General Physics 1 of Physical Faculty, Saint-Petersburg, Russia
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The method of Doppler – free comb – spectroscopy for dipole transitions was proposed. The numerical calculations for susceptibility spectrum for two-level system driving by strong counter propagating combs were made. The narrow peaks with homogeneous width arise on the background of Doppler counter. The contrast of these peaks is large for largest amplitudes of comb-components. Power broadening is increasing with increasing of field amplitudes. The amplitudes of peaks depend on the phase difference between carrier frequencies of combs. The spectral range of absorption spectrum is determined by the spectral range of comb generator and all homogeneous lines arise simultaneously. The spectral resolution is determined by the width of homogeneously –broadening lines. The physical nature of narrow peaks is in the existing of multi-photon transitions between manifolds of quasi-energy levels arising for different groups of atoms moving with velocities that satisfy to the resonant conditions 2kv= (n+l)Ω⁄j, where n, l, j-are integers and Ω - frequency difference between comb teeth.
Doppler – Free Comb Nonlinear Spectroscopy in Counter – Propagating Comb Laser Fields
To cite this article
Sergey A. Pulkin,
Svetlana V. Uvarova,
Doppler-Free Comb-Spectroscopy in Counter-Propagating Fields, American Journal of Modern Physics.
Vol. 2, No. 4,
2013, pp. 223-226.
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