Measurement and Analysis of Optical Constants of Bulk ZnSe in THz Region
XU Xin-long1, 2, WANG Xiu-min1, 2, LI Fu-li2，ZHANG Xi-cheng3, WANG Li1*
1. Institute of Physics, Chinese Academy of Science, Beijing 100080, China 2. Department of Physics, Capital Normal University, Beijing 100037, China 3. Department of Physics, Applied Physics and Astrophysics, Rensselaer Polytechnic Institute, 110 8th Street, Troy, New York 12180-3590, USA
Abstract：In the present paper the authors measured and analyzed the dispersion and absorption characteristics of the bulk ZnSe(110) in THz region using transmission THz time domain spectroscopy. After fitting the experiment data according to the Drude theory, the authors obtained the low-frequency dielectric constant and the high-frequency dielectric constant. The authors also observed the absorption by multi-phonon processes.
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