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UV, visible and IR laser interaction with gelatine

AuthorsOujja, M. ; Rebollar, Esther ; Abrusci, Concepción ; Del Amo, A.; Catalina, Fernando ; Castillejo, Marta
Issue Date1-Apr-2007
PublisherInstitute of Physics (Great Britain)
CitationJournal of Physics: Conference Series 59: 571-574 (2007)
AbstractIn this work we investigate the effects on gelatine films of nanosecond pulsed laser irradiation at different laser wavelengths from the UV to the IR at 248, 266, 355, 532 and 1064 nm. We compared gelatines differing in gel strength values (Bloom 75 and 225) and in crosslinking degree. Formation of bubbles at the wavelengths in the UV (248 and 266 nm), melting and resolidification at 355 nm, and formation of craters by ablation in the VIS and IR (532 and 1064 nm) are the observed morphological changes. On the other hand, changes of the fluorescence behaviour of the films upon UV irradiation reveal chemical modifications of photolabile chromophores. © 2007 IOP Publishing Ltd.
Description4p, 2fig.. -- EIGHTH INTERNATIONAL CONFERENCE ON LASER ABLATION (COLA'05) 11–16 September, 2005, Banff, Canada
Publisher version (URL)http://dx.doi.org/10.1088/1742-6596/59/1/122
Identifiersdoi: 10.1088/1742-6596/59/1/122
issn: 1742-6588
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