15 May 1994 Excited-state absorption and dynamics in a Pb-phthalocyanine copolymer
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Abstract
Transient absorption and degenerate four-wave mixing measurements on a thin film Pb- phthalocyanine-urethane-butanediol copolymer show that this material has a strong excited state absorption in the visible and near-IR. The excited state absorption cross section, (sigma) ex, exceeds that of the ground state, (sigma) g from 430 to 620 nm and at 1064 nm. DFWM measurements at 590 nm show both an instantaneous response ((tau) < 1 ps) and a long lived response from an excited state with a rise time of less than 1 ps, and a decay time of > 10 ns.
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Steven R. Flom, Steven R. Flom, James S. Shirk, James S. Shirk, Richard G. S. Pong, Richard G. S. Pong, James R. Lindle, James R. Lindle, Filbert J. Bartoli, Filbert J. Bartoli, Michael E. Boyle, Michael E. Boyle, James D. Adkins, James D. Adkins, Arthur W. Snow, Arthur W. Snow, } "Excited-state absorption and dynamics in a Pb-phthalocyanine copolymer", Proc. SPIE 2143, Organic, Metallo-Organic, and Polymeric Materials for Nonlinear Optical Applications, (15 May 1994); doi: 10.1117/12.173823; https://doi.org/10.1117/12.173823
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