This page lists the raw data about Theoretical optics and photonics, broken down into the individual sources from which the data has been assimilated. You will probably find it useful to "search in page" (usually CTRL+F).
Data from European Photonics Industry Consortium (EPIC):
→ rdf:type → photonics:Capability
→ rdfs:label → “Theoretical optics and photonics”
→ photonics:capability → http://www.ukphotonics.org/id/capability/theoretical-optics-and-photonics