title: Photophysical and photochemical study of laser-dye coumarin-481 and its photoproduct in solution.
abstract: An ultraviolet light-induced photophysical and Photochemical changes of coumarin-481 in cyclohexane have been studied by photolysis technique at room temperature, due to its potential applications in photonics, photochemistry, and electronic spectroscopy. During the optical pumping, coumarin-481 showed photochemical changes, therefore as the concentration of coumarin-481 decreased, a photoproduct concentration increased rapidly. An absorption band of the product was observed at around 250 nm. Photoproduct emission spectra characteristics show that photoproduct molecules can also be used as a laser-dye at different emission frequency.
authors.affiliation: Department of Electrical-Electronics Engineering, Yeditepe University, 34755 Istanbul, Turkey. bayrakf@yeditepe.edu.tr
authors.forename: Fuat
authors.initials: F
authors.lastname: Bayrakçeken
authors.forename: Ali
authors.initials: A
authors.lastname: Yaman
authors.forename: Mustafa
authors.initials: M
authors.lastname: Hayvali
mesh_terms: D003374:Coumarins / Q000737:chemistry* / Q000378:metabolism; D010777:Photochemistry; D013050:Spectrometry, Fluorescence; D013053:Spectrophotometry; D013997:Time Factors
chemical_list: D003374:Coumarins