激光染料香豆素-481及其光产物在溶液中的光物理和光化学研究。
Photophysical and photochemical study of laser-dye coumarin-481 and its photoproduct in solution.
作者信息
Bayrakçeken Fuat, Yaman Ali, Hayvali Mustafa
机构信息
Department of Electrical-Electronics Engineering, Yeditepe University, 34755 Istanbul, Turkey.
出版信息
Spectrochim Acta A Mol Biomol Spectrosc. 2005 Mar;61(5):983-7. doi: 10.1016/j.saa.2004.05.046.
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.
由于香豆素-481在光子学、光化学和电子光谱学方面的潜在应用，利用光解技术在室温下研究了环己烷中紫外线诱导的香豆素-481的光物理和光化学变化。在光泵浦过程中，香豆素-481表现出光化学变化，因此随着香豆素-481浓度的降低，一种光产物的浓度迅速增加。在250nm左右观察到了该产物的吸收带。光产物发射光谱特征表明，光产物分子在不同发射频率下也可作为激光染料使用。
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