Optical Kerr Effect Measurements on Supercooled Water: the experimental perspective
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 vibrational dynamics and the slow structural relaxation in a single spectrum characterized by low noise and wide dynamic range. We report one measurement of water dynamics in its supercooled phase.
KeyWords: Time-resolved spectroscopy; Mode-coupling theory; Liquid water; Dynamics; RelaxationDOI: 10.1088/1742-6596/177/1/012009Citations: 4data from “WEB OF SCIENCE” (of Thomson Reuters) are update at: 2023-01-29References taken from IsiWeb of Knowledge: (subscribers only)Connecting to view paper tab on IsiWeb: Click hereConnecting to view citations from IsiWeb: Click here