Abstract:
The spectral dependences of the transmittance of CsI, AgCl, KRS-5 and KRS-6 single crystals in the infrared (IR) and terahertz (THz) ranges have been measured. The spectral dependences of the absorption (attenuation) coefficient of these crystals were calculated in the spectral range of 200–3000 μm. It was found, that these crystals are transparent in the millimeter range, which makes it possible to use materials when working with THz radiation. It should be noted that, in contrast to the IR spectral region, the optical quality of the surface of the crystal samples practically does not affect the transmission in the millimeter range.
Citation:
I. A. Kaplunov, G. I. Kropotov, V. E. Rogalin, A. A. Shakhmin, “Transmittance of CsI, AgCl, KRS-5, and KRS-6 crystals in the terahertz range”, Optics and Spectroscopy, 129:6 (2021), 773–777; Optics and Spectroscopy, 129:7 (2021), 775–779
Don Mathew, C. H. Meghna, Vincent Mathew, “Graphene-Based Refractive Index Sensor With a 1-D Topological Photonic System”, IEEE Sensors J., 23:14 (2023), 15537
I. A. Nikolaeva, D. E. Shipilo, N. A. Panov, G. E. Rizaev, D. V. Pushkarev, D. V. Mokrousova, L. V. Seleznev, N. Zhang, W. Liu, A. A. Ionin, O. G. Kosareva, “Terahertz beam with radial or orthogonal to laser polarization from a single-color femtosecond filament”, Opt. Express, 31:25 (2023), 41406
P. Pestereva, A. Yuzhakova, A. Lvov, D. Salimgareev, N. Yudin, V. Voevodin, S. Sarkisov, A. Korsakov, L. Zhukova, “Optical properties of single crystals and ceramics based on silver and thallium (I) halides in the range of 0.3–30.0 THz”, Infrared Physics & Technology, 133 (2023), 104858