Author/Authors :
Okumura، نويسنده , , Ko and Tokmakoff، نويسنده , , Andrei and Tanimura، نويسنده , , Yoshitaka، نويسنده ,
Abstract :
We analyze the two-dimensional (2D) line shape obtained by 2D Fourier transforming the time-domain response of a photon-echo signal as a function of the two coherence periods, t1 and t3. The line shape obtained for a two-level system with homogeneous and inhomogeneous broadening is shown to be sensitive to the magnitude of both of these line-broadening mechanisms. It is shown that the ellipticity of the 2D line shape can be related to the ratio of homogeneous to inhomogeneous broadening.