Multichannel asynchronous time-resolving system for a conventional FT-IR spectrophotometer

A novel multichannel asynchronous time-resolving system with 16 time-resolv ing channels has been developed for conventional FT-IR spectrophotometers. The system enables measurement at 16 time delays simultaneously. This reduc es the measuring time substantially and decreases possible damage of a samp le by the stimulus. Moreover, simultaneous time resolving by the multichann el system improves the reliability of the data. As a performance test of th e system, application to the study of reorientation dynamics in a ferroelec tric liquid crystal is reported.