Subnanosecond relaxation time measurements using a transient induced grating method

Abstract

The orientational relaxation times and S1 singlet lifetimes for Rhodamine 6G molecules in various alcohols have been measured using mode-locked laser pulses in a transient induced grating technique. The transient grating technique can be applied to measure a variety of atomic and molecular excited state phenomena on subnanosecond to picosecond time scales.