photophysical processes

https://doi.org/10.1351/goldbook.P04647
photoexcitation and subsequent events which lead from one to another state of a molecular entity through radiation and radiationless transitions. No chemical change results.
Source:
PAC, 1996, 68, 2223. 'Glossary of terms used in photochemistry (IUPAC Recommendations 1996)' on page 2264 (https://doi.org/10.1351/pac199668122223)