Experimental and Theoretical Study of Strong Low-Terahertz Absorption of Thymine

被引：1
|
作者：
Zhang, W. -D. [1 ]
Bykhovski, A. [1 ,2 ]
Deibel, J. A. [3 ]
Brown, E. R. [1 ]
机构：
[1] Wright State Univ, Dept Phys & Elect Engn, Terahertz Sensors Lab, Dayton, OH 45435 USA
[2] North Carolina State Univ, Dept Elect & Comp Engn, Raleigh, NC 27606 USA
[3] Wright State Univ, Dept Phys, Dayton, OH 45435 USA
来源：
JOURNAL OF INFRARED MILLIMETER AND TERAHERTZ WAVES | 2017年 / 38卷 / 12期
关键词：
Nucleobases; Spectroscopy; Optical phonon; Molecular simulation; Bound water molecules; MOLECULAR-DYNAMICS; THZ-SPECTROSCOPY;
D O I：
10.1007/s10762-017-0420-z
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
The absorption coefficient of a nucleobase-thymine-in powder form was measured with terahertz spectroscopy in both frequency- and time-domain experiments. For frequencies below 3 THz, a strong signature was observed at 1.27 THz. Furthermore, molecular-dynamic simulations were conducted to reveal that the 1.27 THz absorption signature is related to a transverse optical phonon mode. The simulations also indicated that bound water molecules are vital to the vibrational mode.
引用
收藏
页码：1521 / 1529
页数：9
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