Optical and electronic properties of thin bismuth-antimony films in the terahertz frequency range

Anton D. Zaitsev; Petr S. Demchenko; Dmitry V. Zykov; Ekaterina A. Korotina; Elena S. Makarova; Ivan L. Tkhorzhevskiy; Anastasiia S. Tukmakova; Natallya S. Kablukova; Aleksei V. Asach; Anna V. Novotelnova; Mikhail K. Khodzitsky

doi:10.1117/12.2583522

17 November 2020 Optical and electronic properties of thin bismuth-antimony films in the terahertz frequency range

Anton D. Zaitsev, Petr S. Demchenko, Dmitry V. Zykov, Ekaterina A. Korotina, Elena S. Makarova, Ivan L. Tkhorzhevskiy, Anastasiia S. Tukmakova, Natallya S. Kablukova, Aleksei V. Asach, Anna V. Novotelnova, Mikhail K. Khodzitsky

Author Affiliations +

Proceedings Volume 11582, Fourth International Conference on Terahertz and Microwave Radiation: Generation, Detection, and Applications; 115821P (2020) https://doi.org/10.1117/12.2583522
Event: Fourth International Conference on Terahertz and Microwave Radiation: Generation, Detection, and Applications, 2020, Tomsk, Russian Federation

Abstract

The influence of antimony content x and a film thickness on dynamical terahertz conductivity and galvanomagnetic properties of thin-film bismuth antimonides Bi_1-xSb_x at room temperature is studied in this work by means of terahertz time-domain spectroscopy and galvanomagnetic measurements. It is shown that thin bismuth-antimony films have tunable optical response in the THz frequency range. The hyperbolic permittivity dispersion of an effective film-on-substrate structure is also reported. The studied thin-film materials can be applied in detection of terahertz radiation and in terahertz filtering, modulation, phase and polarization shifting, in sensing, imaging and communication systems which work at normal conditions.

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Anton D. Zaitsev, Petr S. Demchenko, Dmitry V. Zykov, Ekaterina A. Korotina, Elena S. Makarova, Ivan L. Tkhorzhevskiy, Anastasiia S. Tukmakova, Natallya S. Kablukova, Aleksei V. Asach, Anna V. Novotelnova, and Mikhail K. Khodzitsky "Optical and electronic properties of thin bismuth-antimony films in the terahertz frequency range", Proc. SPIE 11582, Fourth International Conference on Terahertz and Microwave Radiation: Generation, Detection, and Applications, 115821P (17 November 2020); https://doi.org/10.1117/12.2583522

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