Excited state absorption and dynamics in a Pb-phthalocyanine copolymer

Steven R. Flom; James S. Shirk; Richard G. S. Pong; James R. Lindle; Filbert J. Bartoli; Michael E. Boyle; James D. Adkins; Arthur W. Snow

doi:10.1117/12.173823

15 May 1994 Excited-state absorption and dynamics in a Pb-phthalocyanine copolymer

Steven R. Flom, James S. Shirk, Richard G. S. Pong, James R. Lindle, Filbert J. Bartoli, Michael E. Boyle, James D. Adkins, Arthur W. Snow

Author Affiliations +

Proceedings Volume 2143, Organic, Metallo-Organic, and Polymeric Materials for Nonlinear Optical Applications; (1994) https://doi.org/10.1117/12.173823
Event: OE/LASE '94, 1994, Los Angeles, CA, United States

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, James S. Shirk, Richard G. S. Pong, James R. Lindle, Filbert J. Bartoli, Michael E. Boyle, James D. Adkins, and 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); https://doi.org/10.1117/12.173823

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