transient spectroscopy

https://doi.org/10.1351/goldbook.T06453
A technique for the spectroscopic observation of transient species (excited-state molecular entities or reactive intermediates) generated by a pulse of short duration.
See also:
flash photolysis
,
time-resolved spectroscopy
Source:
PAC, 1996, 68, 2223. (Glossary of terms used in photochemistry (IUPAC Recommendations 1996)) on page 2280 [Terms] [Paper]