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journal article·2016-11-01Open access

Magneto-optical properties of InSb for terahertz applications

Jan Chochol, Kamil Postava, Michael Čada, Mathias Vanwolleghem, Lukáš Halagačka, Jean-François Lampin, Jaromír Pištora

AIP Advances· Volume 6· Issue 11
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Source abstract

Abstract

Magneto-optical permittivity tensor spectra of undoped InSb, n-doped and p-doped InSb crystals were determined using the terahertz time-domain spectroscopy (THz-TDS) and the Fourier transform far-infrared spectroscopy (far-FTIR). A Huge polar magneto-optical (MO) Kerr-effect (up to 20 degrees in rotation) and a simultaneous plasmonic behavior observed at low magnetic field (0.4 T) and room temperature are promising for terahertz nonreciprocal applications. We demonstrate the possibility of adjusting the the spectral rage with huge MO by increase in n-doping of InSb. Spectral response is modeled using generalized magneto-optical Drude-Lorentz theory, giving us precise values of free carrier mobility, density and effective mass consistent with electric Hall effect measurement.
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Research context

OpenAlex topics: Semiconductor Quantum Structures and Devices · Photonic and Optical Devices · Terahertz technology and applications

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

VSB – Technical University of Ostrava 1 Nanotechnology Centre, , 17. listopadu 15/2172, 708 33 Ostrava – Poruba, Czech Republic

Dalhousie University 2 Department of Electrical and Computer Engineering, , 6299 South St, Halifax NS B3H 4R2, Canada

VSB – Technical University of Ostrava 3 Department of Physics, , 17. listopadu 15/2172, 708 33 Ostrava – Poruba, Czech Republic

UMR CNRS 8520 4 Institut d’Electronique, de Microélectronique et de Nanotechnologie, , Avenue Poincaré, F-59652 Villeneuve d’Ascq cedex, France

Funding

Natural Sciences and Engineering Research Council of Canada · Agence Nationale de la Recherche · Ministerstvo Školství, Mládeže a Tělovýchovy · Grantová Agentura České Republiky

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