title: Real-time capturing of the nuclear wave-packet shape in self-trapped excitons.
abstract: We measured the time evolutions of the luminescence spectra in a quasi-1D halogen-bridged platinum complex [Pt(en)(2)][Pt(en)(2)Br(2)](ClO4)(4) with a 50 fs resolution up-conversion spectroscopy and succeeded in real-time visualization of the shape of the wave packet (WP) propagating on the adiabatic potential surface of a self-trapped exciton. The behavior of the WP is in excellent agreement with a calculation based on a harmonic oscillator. We have found that the damping of the WP oscillation is highly nonexponential.
authors.affiliation: Institute for Solid State Physics, The University of Tokyo, Kashiwanoha 5-1-5, Kashiwa-shi, Chiba, 277-8581, Japan.
authors.forename: Taira
authors.initials: T
authors.lastname: Matsuoka
authors.forename: Jun
authors.initials: J
authors.lastname: Takeda
authors.forename: Susumu
authors.initials: S
authors.lastname: Kurita
authors.forename: Tohru
authors.initials: T
authors.lastname: Suemoto