Terahertz dynamics of craft glass
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.