We present the results of experimental and theoretical investigation of pulse area theorem for understanding general properties of two pulse (primary) photon echo in the optically deep Tm3+:Y3Al5O12 crystal. Despite discussed limitations the proposed approach allows us to describe the key feature of area theorem dependence introduced by the Gaussian spatial profile of the pulses: the absence of expected downfall to zero at second pulse area θ20 = 2π in the experimental data.
Topics
Nuclear magnetic resonance
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