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.
© 2006 Optical Society of America
Original Manuscript: August 4, 2006
Revised Manuscript: September 8, 2006
Manuscript Accepted: September 8, 2006
Published: October 26, 2006
Kees Lazonder, Maxim S. Pshenichnikov, and Douwe A. Wiersma, "Easy interpretation of optical two-dimensional correlation spectra," Opt. Lett. 31, 3354-3356 (2006)