Abstract

Advances in theoretical and experimental methods are making possible in depth studies of the structure and dynamics of disordered condensed systems. The very concept of order and disorder is no longer an absolute one rather as the time domain and scattering measurements suggest it depends on the distance and time scale of an observation. In this paper, we explore the extent of local order, the time scale of its persistence, and its influences on molecular dynamics in several systems in their isotropic liquid phase. The results of subpicosecond transient grating optical Kerr effect (TG-OKE)¹ are presented.

© 1994 Optical Society of America