Open AccessО прозрачности щелочно-галоидных кристаллов в терагерцовой области спектра
Author(s) -
И.А. Каплунов,
Г.И. Кропотов,
В.Е. Рогалин,
А.А. Шахмин
Publication year - 2020
Publication title -
žurnal tehničeskoj fiziki
Language(s) - English
Resource type - Journals
eISSN - 1726-748X
pISSN - 0044-4642
DOI - 10.21883/os.2020.10.50017.128-20
Subject(s) - halide , alkali metal , potassium , potassium bromide , rubidium , terahertz radiation , sodium , materials science , infrared , bromide , chloride , absorption (acoustics) , iodine , attenuation coefficient , analytical chemistry (journal) , sodium iodide , chemistry , inorganic chemistry , optics , optoelectronics , physics , organic chemistry , chromatography , metallurgy , composite material
The transmission in the terahertz (THz) region (up to 3000 μm) of alkali halide monocrystals of sodium chloride (NaCl), potassium chloride (KCl), potassium bromide (KBr) and rubidium iodide (RbI), widely used in the infrared region, was studied. The dependences of the absorption coefficient of these materials in the range 0.9 – 3000 μm were obtained. Near 1000 – 3000 μm, the studied materials are transparent, which allows them to be used in THz devices of the millimeter range.