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Nonlinear Optical Studies of DNA Doped Rhodamine 6G-PVA Films Using Picosecond Pulses
DNA Thin Films Z-Scan Picosecond Two-Photon Absorption
2013/1/30
We present our results from the measurements of third-order optical nonlinearity in DNA doped Rhodamine 6G/PVA films achieved through Z-scan measurements using ~2 picosecond (ps) pulses at a wavelengt...
罗丹明6G在银纳米线阵列上的SERS光谱研究
多孔氧化铝 银纳米线阵列 表面增强拉曼散射光谱 罗丹明6G
2011/4/27
制备出有序、均匀的活性衬底一直是表面增强拉曼散射(SERS)研究中的关键。阳极氧化法制备的多孔氧化铝膜的结构有序、均匀, 为纳米金属SERS基底的制备提供了模板。以沉积了银的多孔氧化铝组装体为衬底, 研究了罗丹明6G(Rh6G)分子的表面增强拉曼散射光谱。结果表明,沉积了银的多孔氧化铝模板是很好的SERS衬底,Rh6G分子在此衬底上的SERS谱强度与银纳米线在表面的显露高度有关, 而其拉曼频移未受...
活性嫩黄K-6G的水解及醇解动力学研究
一氯均三嗪型活性染料 水解动力学 醇解动力学 高效液相色谱 醇解效率
2010/4/20
针对活性染料在纤维上染色的动力学性能,研究不同条件下一氯均三嗪型活性染料活性嫩黄K-6G(C.I.Reactive Yellow 2)在甲醇碱性水溶液中的醇解和水解反应动力学,并确定了pH值为10时,不同温度下该染料的醇解与水解反应速率常数。研究表明,在80℃,pH值为9~12之间,醇解效率随时间延长逐渐变少,且pH值越高,醇解效率减少的越快, pH值的升高不利于醇解反应进行,即染料的醇解反应优先...
Saccharide and Fructooligosaccharide Contents, and Invertase, 1-KHE, 1-SST, 1-FFT and 6G-FFT Activities in Green Asparagus Spears during Storage: Effects of Temperature and Spear Portion
sugars fructooligosaccharides asparagus storage
2008/4/20
Fresh spears of asparagus were stored in the dark at 4, 10 or 20°C for 2 weeks. During storage contents of glucose, fructose, sucrose, 1-kestose, neokestose and nystose, and activities of invertase, 1...