G. A. Komandin, O. E. Porodinkov, Yu. G. Goncharov, I. E. Spektor, L. D. Iskhakova, V. N. Sigaev, S. V. Lotarev, V. I. Torgashev, “Temperature evolution of dielectric response spectra of stillwellite-like glasses in the terahertz and infrared ranges”, Fizika Tverdogo Tela, 2014, Volume 56, Issue 6,Pages <nobr>1152

Optical properties

Temperature evolution of dielectric response spectra of stillwellite-like glasses in the terahertz and infrared ranges

G. A. Komandin^a, O. E. Porodinkov^a, Yu. G. Goncharov^a, I. E. Spektor^a, L. D. Iskhakova^b, V. N. Sigaev^c, S. V. Lotarev^c, V. I. Torgashev^d

^a Prokhorov General Physics Institute of the Russian Academy of Sciences, Moscow
^b Fiber Optics Research Center of the Russian Academy of Sciences, Moscow
^c International Laboratory of Functional Glass-Based Materials, Mendeleyev University of Chemical Technology of Russia, Moscow, 123480, Russia
^d Southern Federal University, Rostov-on-Don

Abstract: The reflectance and transmittance spectra of the PrBGeO$_5$ glass were measured in the terahertz and infrared ranges. At low temperatures, an increase in the permittivity and the appearance of narrow resonance-type lines in the terahertz range were revealed. The complex permittivity spectra were calculated from the Fresnel and Kramers–Kronig formulas.

Received: 25.11.2013