Terahertz dynamics of craft glass

Wataru Yajima; Tatsuya Mori; Yeonkyung Jeong; Yuta Iijima; Seiji Kojima

Wataru Yajima School of Engineering Sciences, University of Tsukuba
Tatsuya Mori Graduate School of Pure and Applied Sciences, University of Tsukuba
Yeonkyung Jeong Faculty of Art and Design, University of Tsukuba
Yuta Iijima Graduate School of Pure and Applied Sciences, University of Tsukuba
Seiji Kojima Graduate School of Pure and Applied Sciences, University of Tsukuba

Keywords: terahertz time-domain spectroscopy, terahertz imaging, colored glass

Abstract

We performed terahertz time-domain spectroscopy (THz-TDS) on two types of soda lime glass samples. One sample is transparent glass and the other sample is black glass. Furthermore, terahertz imaging was performed on the two-color integrated glass. It was found that the metallic element added to the black glass did not affect the terahertz light absorption. From the spectrum of the glass obtained by THz-TDS, a peak called boson peak appears in α/ν2 spectrum, where α is absorption coefficient. This result shows that THz-TDS is suitable for observing the boson peak of colored soda lime glass.