Changes of photon echo by electromagnetic pulses in LaF3:Pr3+

Anatoly M. Shegeda; B. M. Khabibullin; V. N. Lisin; Vladimir A. Zuikov; Vitaly V. Samartsev

doi:10.1117/12.239465

10 May 1996 Changes of photon echo by electromagnetic pulses in LaF₃:Pr³⁺

Anatoly M. Shegeda, B. M. Khabibullin, V. N. Lisin, Vladimir A. Zuikov, Vitaly V. Samartsev

Proceedings Volume 2798, Coherent Phenomena and Amplification without Inversion; (1996) https://doi.org/10.1117/12.239465
Event: International Conference on Coherent and Nonlinear Optics, 1995, St. Petersburg, Russian Federation

Abstract

A strong decreasing of the intensity of the inverse 2-pulse, 3-pulse and long lived 3-pulse photon echo was observed when a current pulse passed through the strip evaporated onto the surface of the sample (current pulse was applied before or after the laser pulses). The strip is heated by the current pulse and there is the voltage difference at the ends of the strip. The voltage difference creates instantly the nonuniform electric field in the region of optical excitation so the echo intensity is decreased by the short-lived nonuniform line width rise. The line width rise is differentiated for the distinct type ion sites in the LaF₃ unit cell. The strip current-heating gives rise to a phonon pulse. When phonon pulse reaches the optically excited volume it causes the shift of energy levels of Pr³⁺ ions, effecting a phase accumulation and the echo intensity change as a consequence.

Citation Download Citation

Anatoly M. Shegeda, B. M. Khabibullin, V. N. Lisin, Vladimir A. Zuikov, and Vitaly V. Samartsev "Changes of photon echo by electromagnetic pulses in LaF₃:Pr³⁺", Proc. SPIE 2798, Coherent Phenomena and Amplification without Inversion, (10 May 1996); https://doi.org/10.1117/12.239465

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