Title :
THz spectroscopy of ice
Author :
Chun Zhang ; Lee, Kwang-Su ; Zhang, Chun ; Wei, Xing ; Shen, Y.R.
Author_Institution :
Dept. of Phys., California Univ., Berkeley, CA, USA
Abstract :
We have shown that the THz-time-domain spectroscopy technique can be used to measure accurately the refractive indices of crystalline ice in the THz range. Our 0.25-1.0 THz results bridge the gap between the microwave and the far IR regions. They agree very well with the curve extrapolated from the microwave data of T. Matsuoka et al. (1996), and provide an assessment of the reliability of the experimental data of others. It is found that the existing theoretical models describe well the refractive indices in this region
Keywords :
ice; refractive index; submillimetre wave spectra; time resolved spectra; 0.25 to 1.0 THz; 233 to 273 K; Debye relaxation; Fourier transform; H2O; THz time-domain spectroscopy; hexagonal ice; imaginary indices; low-frequency difference combination band; real indices; refractive indices; single crystal; time-resolved field variation; ultrashort current pulses; Crystallization; Dielectric constant; Frequency; Ice; Optical pulse generation; Optical refraction; Physics; Pulse measurements; Spectroscopy; Temperature distribution;
Conference_Titel :
Lasers and Electro-Optics Society, 2001. LEOS 2001. The 14th Annual Meeting of the IEEE
Conference_Location :
San Diego, CA
Print_ISBN :
0-7803-7105-4
DOI :
10.1109/LEOS.2001.968981
