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Dephasing-Rephasing Balancing in Photon Echoes by Excitation Induced Frequency Shifts

1996; American Physical Society; Volume: 76; Issue: 10 Linguagem: Inglês

10.1103/physrevlett.76.1747

1092-0145

Stefan B. Altner, Masaharu Mitsunaga, G. Zumofen, Urs P. Wild,

Solid-state spectroscopy and crystallography

The excitation dephasing in solids resulting from the interaction with neighboring species' excitations is investigated. The frequency shifts due to these interactions are identified by the observation of partial dephasing-rephasing balancing in bichromatic photon-echo experiments applied to rare-earth ion doped crystals. The experimental observations are in good agreement with the predictions obtained from a model which accounts for the disorder in the crystal and for the stochastic nature of the excitations.