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In this paper, we present the effects of crosslinking in polyvinyl alcohol (PVA) on picosecond optical dephasing of the zero-phonon line for two doped dye molecules measured by incoherent photon echoes. We show that the effects can be explained as the decrease of a local density of the two-level tunneling system (TLS) in PVA.
© 1992 The Author(s)
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