Time-resolved coherent anti-Stokes Raman-scattering measurements of I2 in solid Kr: Vibrational dephasing on the ground electronic state at 2.6–32 K
作者： Tiina Kiviniemi , Jukka Aumanen , Pasi Myllyperkiö , V. A. Apkarian , Mika Pettersson
DOI: 10.1063/1.1990115
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摘要: Time-resolved coherent anti-Stokes Raman-scattering (CARS) measurements are carried out for iodine (I2) in solid krypton matrices. The dependence of vibrational dephasing time on temperature and quantum number v is studied. approximately quadratic, while the both spectral shift, although weak, fits exponential form characteristic by pseudolocal phonons. analysis data indicates that frequency phonons ∼30cm−1. longest times observed v=2 being ∼300ps limited inhomogeneous broadening. An increase rate as lowered to T=2.6K taken a clear indication lattice-strain-induced inhomogeneity ensemble coherence.
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