critical quenching radius, \(r_{0}\)

https://doi.org/10.1351/goldbook.C01398
See: Förster excitation transfer
Source:
PAC, 1996, 68, 2223. 'Glossary of terms used in photochemistry (IUPAC Recommendations 1996)' on page 2234 (https://doi.org/10.1351/pac199668122223)