Abstract

Conventional fluorescence polarization experiments are in general sensitive to only one degree of angular freedom in the laboratory frame. Using a variable excitation polarization, it is possible to photoselect a range of initial nonequilibrium molecular orientations in an anisotropic medium that are sensitive to both Θ and φ motions, and whose evolution can be monitored by picosecond time-resolved polarized fluorescence.^1,2

© 1998 Optical Society of America