2021   02   en   p.38-40 Elvin Husenaga Alizade,
Surface plasmon polariton observation at narrow-gap semiconductor Bi2Se3 and Sb2Te3


The application of the surface plasmon resonance (SPR) in the mid IR spectrum is able to recognize a wide range of compounds based on selective binding and vibration modes. This paper presents the results of investigation of the bulk or volume plasmon polariton (VPP) and surface plasmon polaritons (SPP) in the IR spectrum on the well-known layered compounds Bi2Se3 and Sb2Te3. The plasmon in the mid-IR spectrum was studied at IR spectroscopic ellipsometry. The dispersion of the plasmon polariton was calculated in case of ambient air medium. Also, the dispersion of the plasmon polariton was calculated in 3 different mediums – KRS-5, ZnSe and Si. Furthermore, the spectral dependence of the plasmon propagation length were calculated.

Keywords: plasmon, surface plasmon resonance, spectroscopic ellipsometry, plasmon dispersion.
PACS: 71.45.Gm


Received: 01.06.2021


Institute of Physics, of Azerbaiyan NAS 131, H. Javid ave., Baku, AZ 1143
E-mail: alizadeelv@gmail.com

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