材料科学
光学
拉曼光谱
颜料
光电子学
拉曼散射
光谱学
可见光谱
光强度
作者
Rui Dang,Huijiao Tan,Nan Wang,Gang Liu,Fenghui Zhang,Xiangyang Song
出处
期刊:Applied Optics
[The Optical Society]
日期:2020-05-20
卷期号:59 (15): 4599-4605
被引量:1
摘要
Because commonly used organic pigments are highly responsive to visible light, high-light-sensitivity art is vulnerable to irreversible illumination-induced damage caused by radiation from light sources. With application of the four primary white light-emitting diodes (fp-WLEDs) in museums, it is urgent to evaluate the illumination-induced damage to high-light-sensitivity art caused by the fp-WLEDs. Four narrowband LEDs with different peak wavelengths of 450, 510, 583, and 650 nm that constitute the spectra of the fp-WLEDs were used to irradiate three commonly used organic pigments: safflower, gamboge, and indigo. Based on the fundamental reason for the illumination-induced damage, that is, photochemical reactions, Raman spectroscopy was introduced into the study. The Raman spectra of pigments were measured before and after illumination. The characteristic Raman peaks corresponding to the functional groups that determine color and structure of pigments were selected, and the variations in their peak intensities were calculated. The illumination-induced damage coefficients of four narrowband LEDs on three organic pigments were obtained, providing a data basis for illumination-induced damage evaluation equation proposed in this study, which was expected to further realize museum admission evaluation of the new fp-WLEDs.
科研通智能强力驱动
Strongly Powered by AbleSci AI