Abstract
The polarization properties of the photon echo generated by two linearly polarized pulses of resonant radiation at the (6s6p)3 P 1 ↔ (6s 2)1 S 0 transition of 174Yb are investigated. A complicated polarization behavior of the photon echo versus an angle between the polarization vectors of the excitation pulses is revealed in a mixture of ytterbium vapor with inert gas. For the angles ranging from 0° to 75°, a conventional echo with its linear polarization coinciding with the second excitation pulse dominates and the echo amplitude decreases with an increasing angle. For the angles ranging from 75° to 89°, the photon echo is elliptically polarized. Finally, for an angle of 90°, the conventional echo disappears and the collision echo becomes linearly polarized along the first excitation pulse.
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Rubtsova, N.N., Kochubei, S.A., Ishchenko, V.N. et al. Conventional and collision photon echo in ytterbium vapor. Laser Phys. 19, 171–175 (2009). https://doi.org/10.1134/S1054660X09020042
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DOI: https://doi.org/10.1134/S1054660X09020042