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The Influence of the Structure of Different Arsenic Chalcogenide Glasses on Refractive Index and Dispersion
Author(s) -
Burckhardt W.,
Feltz A.
Publication year - 1983
Publication title -
physica status solidi (b)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.51
H-Index - 109
eISSN - 1521-3951
pISSN - 0370-1972
DOI - 10.1002/pssb.2221180222
Subject(s) - chalcogenide , refractive index , dispersion (optics) , wavelength , materials science , refraction , optics , absorption edge , arsenic , absorption (acoustics) , chalcogenide glass , range (aeronautics) , condensed matter physics , physics , optoelectronics , band gap , composite material , metallurgy
The refractive index dispersion of different arsenic chalcogenide glasses is analyzed by the use of a two‐term Sellmeier dispersion formula. In a region from 3 μm up to the beginning of the absorption edge the wavelength dependence of the refractive index can be described by a single oscillator model. At wavelengths λ j , determined by λ 1 j , = const, the molar refraction of the different glasses is a linear function of n eff λ 1 2 . In representations R M = R M ( neff ) and R M = R M (λ 1 2 ) the influence of the structure of the different glasses is clearly illustrated. For the glass AsSe 3 a special short‐range order is indicated.