PHOTON-ECHO DEMOLITION SPECTROSCOPY IN EU3+PR3+ND3+Y2SIO5

Photon-echo experiments in a Y2SiO5 crystal codoped with Eu3+, Pr3+ an d Nd3+ were performed with the objective of studying the influence of excited neighboring ions on the rephasing properties of the ions studi ed by the coherent transient technique. A strong 'scrambler' pulse was applied to ions of one species before (or while) a two-pulse photon-e cho experiment was carried out on a different species. The dependence of the echo intensity on the 'scrambler' wavelength as well as on the time delay between 'scrambler' pulse and echo sequence was investigate d. Experimental agreement with a simple model has been obtained.