We
have investigated the mechanisms which are contribute to the linear and
nonlinear optical behaviors of the heavy metal containing tellurite glasses by
using UV-Vis spectrophotometer and open aperture Z-scan experiments. The
bandgap values of the studied tellurite glasses with WO3, Nb2O5, and ZnO modifiers were found among 2.58 eV and
3.01 eV. The results of the open aperture Z-scan experiments indicated that the
studied tellurite glasses modified with different amounts of WO3, Nb2O5, and ZnO possessed larger nonlinear absorption
coefficients (among 2.62x10-7 cm/W and 6.38x10-7 cm/W) than the nonlinear absorption coefficients
of previously investigated tellurite glasses. When the linear and nonlinear
absorption results of the studied modified tellurite glasses considered
together, it can be reported that the mechanisms which are contributed to the
nonlinear absorption coefficients caused mainly from two photon absorption and
two photon assisted free carrier absorption.
Primary Language | English |
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Subjects | Engineering |
Journal Section | Articles |
Authors | |
Publication Date | July 25, 2019 |
Published in Issue | Year 2019Volume: 6 |