P114
Ultrafast formation and thermalization processes of the relaxed excited state in one-dimensional dimethylglyoxim platinum complexes
S.Iwai, T.Kamata, S.Murata, T.Fukaya, T.Kodaira, F.Muzukami, M.Tachiya,K.Yamamoto* and T.Ohta*
NIMC, *Univ. of Tokyo
Optical response due to the photo excited carrier or exciton dynamics in 1-D dimethylglyoxime Pt complex (Pt(dmg)2) has been
investigated by pump -probe spectroscopy using 150 and 40fs pulses. Measurements were made at several excitation energies
between the exciton stste and the free electron hole pair state. Induced absorption was observed in the lower energy side of
the exciton absorption at any excitation energy. The spectral shape of the induced absorption changd with time between 0.1 and
0.3ps after instantenious rise up. These results can be explained by the formation and thermalization processes of the relaxed
excited state on the adiabatic potebtial surface.
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