Absorption changes under UV illumination in doped PMMA
| Autor(en): | Havermeyer, F Pruner, C Rupp, RA Schubert, DW Kratzig, E |
Stichwörter: | GRATINGS; Optics; Physics; Physics, Applied | Erscheinungsdatum: | 2001 | Herausgeber: | SPRINGER-VERLAG | Enthalten in: | APPLIED PHYSICS B-LASERS AND OPTICS | Band: | 72 | Ausgabe: | 2 | Startseite: | 201 | Seitenende: | 205 | Zusammenfassung: | The absorption spectra of poly(methyl methacrylate) (PMMA) doped with the photoinitiator 2,2-dimethoxy 2-phenylacetophenone (DMPA) change under illumination with UV light. Time-resolved measurements of the kinetics of the absorption changes at 352 nm prove the existence of a second light-induced reaction besides the expected light-induced decay of the photoinitiator. We propose a model for this second process which is in good agreement with the observed experimental facts. |
ISSN: | 09462171 | DOI: | 10.1007/s003400000438 |
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