This analysis reveals memory retention for two-photon absorption in GaN bilayers, suggesting new insights into excitonic dynamics.
We investigate the dynamics of excitonic luminescence from GaN bilayers, comparing one- versus two-photon excitation. The system unexpectedly retains a memory of whether the excitation occurs via single- or two-photon absorption for tens of picoseconds.
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Cui et al. (2025) studied this question.
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