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V. MUSINSCHI1,* , M. CARAMAN2, C. MUSINSCHI3
The optical measurements were carried out for the incident light of E ┴ C4 and E║C4, (C4 is the optical axis of crystals) in the 50 – 50000 cm-1 spectral range. By the Kramers -Kronig relation the calculations are made of dispersions of the real and imaginary parts of dielectric penetration, as well as of the factors of refraction and absorption, and natural frequencies are determined. Frequencies of active phonons in the IR spectrum are determined. The IR reflection spectra (E║C4) contain 4 intensive absorption bands κ(ν) and 8 bands in spectra of E ┴ C4 which were interpreted in terms of theoretical group analysis of D4 point symmetry group of TeO2 crystals. The natural frequencies of the TeO2 were determined.
Acousto-optic crystal, Reflection spectrum, Kramers-Kronig analysis, Optical phonons, Natural frequencies.
V. MUSINSCHI, M. CARAMAN, C. MUSINSCHI, Natural frequencies of acousto-optic TeO2 crystals, Optoelectronics and Advanced Materials - Rapid Communications, 4, 5, May 2010, pp.719-721 (2010).
Submitted at: April 15, 2010
Accepted at: May 20, 2010
Optoelectronics and Advanced Materials - Rapid Communications
(2023): 0.5 - 2023 Journal Citation Reports (Clarivate Analytics, 2024)
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