Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
9786135 | Optics Communications | 2005 | 11 Pages |
Abstract
An automatic measurement system for terahertz (THz) transmission spectroscopy based on difference-frequency generation (DFG) of widely tunable coherent THz waves via excitation of a phonon-polariton mode in GaP was constructed and improved to give it a wider frequency measurement range and four times greater S/N ratio by using the double-beam method. In this paper, we present spectroscopic measurements of nucleobases, nucleosides, deoxynucleosides, and nucleotides, all of which are the components of RNA and DNA molecules, in the range of 0.4-5.8 THz in order to compare their characteristic features in the wider terahertz frequency region.
Related Topics
Physical Sciences and Engineering
Materials Science
Electronic, Optical and Magnetic Materials
Authors
Jun-ichi Nishizawa, Tetsuo Sasaki, Ken Suto, Tadao Tanabe, Kyosuke Saito, Tetsuya Yamada, Tomoyuki Kimura,