The time-resolved spectroscopic investigations are particularly suitable for the measurement of relaxation patterns of complex liquids where several dynamic phenomena, taking place on di®erent time scales, are present. In particular, the optical Kerr e®ect performed with ultra-short laser pulses and heterodyne detection enables a unique investigation of the dynamic processes taking place in molecular liquids of di®erent 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.
Optical Kerr Effect Measurements on Supercooled Water: the experimental perspective / P. Bartolini ; A. Taschin; R. Eramo; R. Righini; R. Torre. - In: JOURNAL OF PHYSICS. CONFERENCE SERIES. - ISSN 1742-6588. - STAMPA. - 177:(2009), pp. 012009-1-012009-4. [10.1088/1742-6596/177/1/012009]
Optical Kerr Effect Measurements on Supercooled Water: the experimental perspective
BARTOLINI, PAOLO;TASCHIN, ANDREA;RIGHINI, ROBERTO;TORRE, RENATO
2009
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 di®erent time scales, are present. In particular, the optical Kerr e®ect performed with ultra-short laser pulses and heterodyne detection enables a unique investigation of the dynamic processes taking place in molecular liquids of di®erent 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.File | Dimensione | Formato | |
---|---|---|---|
Bartolini_jpcs_09.pdf
Accesso chiuso
Tipologia:
Versione finale referata (Postprint, Accepted manuscript)
Licenza:
Tutti i diritti riservati
Dimensione
495.28 kB
Formato
Adobe PDF
|
495.28 kB | Adobe PDF | Richiedi una copia |
I documenti in FLORE sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.