It has been confirmed early in the nineties that adding oxides of empty d-orbital cations (like TiO2, Nb2O5, WO3...) improves the non-linear optical response (namely third order non linear susceptibility) of tellurite glasses... I am wondering if we observe the same effect in the case of SiO2-based glasses?
Kind regards,
Hi Mohammed,
The addition of these transition metals to silicate glasses improves the optical properties of the resulting glass. Please have a look at the paper attached in which the authors show the effect of adding Ta2O5 (has very good optical properties) on the structural and thermal properties of Silica based glasses.
Here's a recent paper showing the effect of TiO2 in silicate glass:
https://www.osapublishing.org/ome/abstract.cfm?uri=ome-6-4-1198
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