Scientific Results

Optical Kerr Effect Measurements on Supercooled Water: the experimental perspective

Year: 2007

Authors: Bartolini, P., Taschin, A., Eramo R., Righini R., Torre R.

Autors Affiliation: LENS, Univ. di Firenze, Via, N. Carrara 1, I-50019 Sesto Fiorentino, Firenze, Italy;
CNR, Piaz. A. Moro 2, I-00185, Roma,Italy;
Dip. di Chimica, Univ. di Firenze, Via della Lastruccia 3, I-50019 Sesto Fiorentino, Firenze,Italy;
Dip. di Fisica, Univ. di Firenze, Via Sansone 1, I-50019 Sesto Fiorentino,Firenze, Italy.

Abstract: The time-resolved spectroscopic investigations are particularly suitable for the measurement of relaxation patterns of complex liquids where several dynamic phenomena, taking place on different time scales, are present. In particular, the optical Kerr effect performed with ultra-short laser pulses and heterodyne detection enables a unique investigation of the dynamic processes taking place in molecular liquids of different natures.
We present here an improved experimental set-up that enables to measure the fast vibrationald ynamics and the slow structural relaxation in a single spectrum characterized by low noise and wide dynamic range.

Journal/Review:

Volume: 177      Pages from: 1  to: 4

KeyWords: time-resolved spectroscopy

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