title: Easy interpretation of optical two-dimensional correlation spectra.
abstract: We demonstrate that the value of the underlying frequency-frequency correlation function can be retrieved from a two-dimensional optical correlation spectrum through a simple relationship. The proposed method yields both intuitive clues and a quantitative measure of the dynamics of the system. The technique is applied to studying the effects of temperature and phase changes on liquid-glass solvent dynamics.
authors.affiliation: Ultrafast Laser and Spectroscopy Laboratory, Materials Science Centre, University of Groningen, The Netherlands.
authors.forename: Kees
authors.initials: K
authors.lastname: Lazonder
authors.forename: Maxim S
authors.initials: MS
authors.lastname: Pshenichnikov
authors.forename: Douwe A
authors.initials: DA
authors.lastname: Wiersma