Vibrational spectra of nucleosides studied using terahertz time-domain spectroscopy
We demonstrate that terahertz (THz) time-domain spectroscopy is a powerful technique for measuring temperature-dependent and spatially-resolved vibrational spectra in the frequency range 0.2–3.0 THz. A number of well resolved absorption peaks are observed for poly-crystalline nucleosides, and we hav...
Saved in:
Published in | Vibrational spectroscopy Vol. 35; no. 1; pp. 111 - 114 |
---|---|
Main Authors | , , , |
Format | Journal Article |
Language | English |
Published |
Elsevier B.V
17.06.2004
|
Subjects | |
Online Access | Get full text |
Cover
Loading…
Summary: | We demonstrate that terahertz (THz) time-domain spectroscopy is a powerful technique for measuring temperature-dependent and spatially-resolved vibrational spectra in the frequency range 0.2–3.0
THz. A number of well resolved absorption peaks are observed for poly-crystalline nucleosides, and we have mapped the evolution of these absorption features continuously between 4 and 295
K. The resonance frequency is found to shift with temperature and an empirical expression describing this frequency shift is given. In addition, we present spectrally-resolved THz images based on these vibrational modes, accessing both spatial and compositional information of subsurface biochemical materials. |
---|---|
ISSN: | 0924-2031 1873-3697 |
DOI: | 10.1016/j.vibspec.2003.12.004 |