DIELECTRICAL AND OPTICAL PROPERTIES OF STRONTIUM-BARIUM NIOBATE FILMS IN THE RANGE OF 0.2-1.3 THz
V. D. Antsygin1, A. A. Mamrashev1,2
1Institute of Automation and Electrometry, Siberian Branch, Russian Academy of Sciences, 630090, Novosibirsk, prosp. Akademika Koptyuga, 1
2Institute of High Current Electronics, Siberian Branch, Russian Academy of Sciences, 634055, Tomsk, prosp. Akademicheskii, 2/3
Keywords: терагерцовая спектроскопия, ниобат бария-стронция, ITO, сегнетоэлектрические плёнки, пироэлектрические приёмники, terahertz spectroscopy, strontium-barium niobate, ITO, ferroelectric films, pyroelectric detectors
Abstract
The knowledge of optical and dielectrical properties of ferroelectric films, in particular, strontium-barium niobate films, in the terahertz spectral range is needed to use these films as a basis of active elements and structures for detection and control of terahertz radiation. The properties of strontium-barium niobate films with x = 0.5 grown on oriented sapphire substrates with an applied electrode are studied by the method of pulsed broad-band terahertz spectroscopy in the spectral range of 0.2-1.3 THz. It is found that strontium-barium niobate films can be used to develop devices for detection and control of terahertz radiation.
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