Experimental and Theoretical Study of Carnosine in THz Range
YAN Hai-Tao, WANG Wei-Ning
Department of Physics, Capital Normal University, Beijing 100037
Experimental and Theoretical Study of Carnosine in THz Range
YAN Hai-Tao;WANG Wei-Ning
Department of Physics, Capital Normal University, Beijing 100037
关键词 ：
78.47.+p ,
78.20.Bh ,
42.62.Be
Abstract ： The characteristic fingerprints of carnosine from 0.2 to 2.6THz are first measured by terahertz time-domain spectroscopy at room temperature. For the pure carnosine, the refractive index varies between 1.79 and 1.85 with the average value 1.84, while for the carnosine-polyethylene mixture, four absorption peaks centred at 1.37, 1.56, 1.85 and 2.49THz are detected. A comparison of the theoretical predictions using the density functional theory with the experimental results shows satisfactory agreement except somewhat blue shift.
Key words ：
78.47.+p
78.20.Bh
42.62.Be
出版日期: 2005-12-01
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2005, Vol. 22 
