Solutions of polycarbazolyldiacetylene in benzene were studied using ultrabroadband sub-10-fs excitation pulses obtained from a visible optical parametric amplifier. The semiconducting polymers exhibited a steep onset of ground state absorption. The differential transmission signal was observed to be dependent on pump-probe delay at the probe wavelength of 590 nm.
Excited state evolution in polydiacetylene studied by sub-10-fs time resolved spectroscopy
Comoretto, D.;Dellepiane, G.
2000-01-01
Abstract
Solutions of polycarbazolyldiacetylene in benzene were studied using ultrabroadband sub-10-fs excitation pulses obtained from a visible optical parametric amplifier. The semiconducting polymers exhibited a steep onset of ground state absorption. The differential transmission signal was observed to be dependent on pump-probe delay at the probe wavelength of 590 nm.
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