Abstract
By using stochastic theory, we analyze the non-Markovian temporal behavior in four types of photon echoes, including the two-pulse echo, stimulated echo, accumulated echo, and heterodyne-detected accumulated echo. In particular, the origin of the exp(-${\mathit{ct}}^{3}$) dependence of the two-pulse echo in the limit of slow modulation is discussed in detail. It is also pointed out that, at the slow-modulation limit, the temporal behavior of the stimulated echo changes from exp(-${\mathit{ct}}^{3}$) dependence to exp(-${\mathit{ct}}^{2}$) dependence as the waiting time (the time interval between the second and the third excitation pulses) is varied.
Published Version
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