Photon echo generated at the transition 0–1 in ytterbium vapor
| Autor: | I. V. Yevseyev, V. G. Gol’dort, V. N. Ishchenko, S. A. Kochubei, N. N. Rubtsova, V. A. Reshetov, E. B. Khvorostov |
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| Rok vydání: | 2012 |
| Předmět: |
Physics
Ytterbium Photon business.industry Physics::Optics chemistry.chemical_element Radiation Condensed Matter Physics Polarization (waves) Laser Industrial and Manufacturing Engineering Atomic and Molecular Physics and Optics law.invention Optics chemistry law Physics::Atomic Physics Photonics Atomic physics Anisotropy business Instrumentation |
| Zdroj: | Laser Physics. 22:1489-1494 |
| ISSN: | 1555-6611 1054-660X |
| Popis: | Photon echo generated at the inter-combination transition (6s2) 1S0 − (6s6p) 3P1 of 174Yb was investigated for pure ytterbium vapor and for its mixtures with atomic buffers. In pure ytterbium vapor, the polarization of photon echoes at this 0–1 transition coincides with the polarization of the second exciting pulse for all combinations of linear and circular polarizations of exciting radiation pulses. Photon echo does not appear either for linear orthogonal or for opposite circular polarizations of exciting pulses in pure ytterbium. In mixtures of ytterbium with atomic buffers (Kr, Xe), collision induced photon echo arises only for exciting pulses of linear orthogonal polarizations, its power is essentially less than that of the ordinary echo generated by pulses with parallel polarizations in the same mixture. Polarization of collision induced echo is linear, and it coincides with polarization of the first exciting pulse. Experimental results agree with calculations, and they confirm that the collision induced photon echo at this transition arises exclusively due to anisotropy of depolarizing collisions. |
| Databáze: | OpenAIRE |
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