Photochemical process leading to a chiral substance from an achiral precursor such that one enantiomer predominates over the other.
Source:
PAC, 2007, 79, 293. 'Glossary of terms used in photochemistry, 3rd edition (IUPAC Recommendations 2006)' on page 304 (https://doi.org/10.1351/pac200779030293)