Title : 
THz spectroscopic investigation of selected purines and amino acids
         
        
            Author : 
Chen, Yunqing ; Liu, Haibo ; Liu, Kai ; Zhang, X.-C.
         
        
            Author_Institution : 
Center for Terahertz Res., Rensselaer Polytech. Inst., Troy, NY, USA
         
        
        
        
        
        
            Abstract : 
We report the measurement and calculation of low-frequency vibrations of selected purines and amino acids by using THz time-domain spectroscopy and density functional theory. Specific features in the vibrational spectra are identified and interpreted in the 0.3-3 THz region.
         
        
            Keywords : 
density functional theory; infrared spectroscopy; molecular biophysics; organic compounds; vibrational states; 0.3 to 3 THz; THz time-domain spectroscopy; amino acids; density functional theory; low-frequency vibrations; purines; vibrational spectra; Amino acids; Density functional theory; Optical scattering; Polyethylene; Powders; Reflectivity; Spectroscopy; Time domain analysis; Ultrafast optics; Vibration measurement;
         
        
        
        
            Conference_Titel : 
Infrared and Millimeter Waves and 13th International Conference on Terahertz Electronics, 2005. IRMMW-THz 2005. The Joint 30th International Conference on
         
        
            Print_ISBN : 
0-7803-9348-1
         
        
        
            DOI : 
10.1109/ICIMW.2005.1572403