Journal
OPTICS AND LASER TECHNOLOGY
Volume 111, Issue -, Pages 184-190Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.optlastec.2018.09.041
Keywords
Optical materials; Alkaline earth metals; Z-scan method; Two photon absorption; Rare earth ions; Energy gap
Categories
Funding
- King Khalid University
- Ministry of Education, and Kingdom of Saudi Arabia [RCAMS/KKU/001-18]
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A systematic characterization of optical and chemical properties of fluorotellurite glasses based on 70TeO(2)-5M(x)O(y)-10P(2)O(5)-10ZnO-5PbF(2) glasses as function of alkaline earth metals as network modifiers were studied and analysed. The Z-scan results show that all the compounds have NLO properties such as nonlinear refractive index (n(2)) and two photon absorption (beta). Finally, using (n(2) ) and (beta) we also determined the third-order nonlinear optical susceptibility chi(< 3 >). It was found that the alkaline earth metals elements, have an influence on such NLO properties. Based on the ability of the lattice modifiers to decrease the band-gap energy while simultaneously increasing the linear refractive index of the TeO2-based glass, we investigated how these modifiers affect the non-linear refractive index.
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