Transient-spectroscopy technique in which the excited state dynamics is probed via stimulating the molecular species from the photo-excited state (produced by a short pump pulse) back to the ground state by means of a short dump pulse at various pump–dump time delays.
Source:
PAC, 2007, 79, 293. 'Glossary of terms used in photochemistry, 3rd edition (IUPAC Recommendations 2006)' on page 434 (https://doi.org/10.1351/pac200779030293)