Modulation oscillations of a light wave in the Stark-pulse technique

A. I. Alekseev, Ashat M. Basharov

Weston J. Sandle, M. C. Standage, D. M. Warrington

A Stark effect experiment is presented, which involves the recording of transients in radiation resonantly scattered by a vapour, following the sudden application of an electric field pulse. The theory of this effect is developed from the case where a general step-function perturbation is applied. The transients have the form of damped sinusoidal oscillations: the damping is determined by the rate of radiative decay; the modulation frequencies depend directly on the energy-level splittings caused by the applied field. This technique has been to measure the magnitude and sign of the differential Stark shifts in the 6 3 P 1 level of 198 Hg and 199 Hg. These lead to a value for the tensor polarizability which is in good agreement with recent measurements. Results are presented of a calculation of the polarizabilities of the 6 3 P 1 and 6 1 S 0 levels based on experimental oscillator strengths.

Arthur Bramley

V. M. Semibalomut, R. I. Sokolovskiǐ

Felix R. Graf, Bernd H. Plagemann, Alois Renn +2 more

Using Stark-pulse-modulated photon echoes, we observe a novel type of rephasing phenomenon in a Eu(3+) - and Pr(3+) -codoped Y(2)SiO(5) crystal. By adjusting the Stark pulse during the rephasing and dephasing periods one can observe a full recovery of the photon echo, corresponding to perfect dephasing-rephasing balancing of the perturbations. We propose to use this effect as a spectroscopic technique to distinguish between reversible and irreversible Stark interactions.

R. N. Shakhmuratov, A. R. Kessel