Browsing by Subject "Second-order nonlinearity"

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    Thermally poled germanosilicate films with high second-order nonlinearity
    (IEEE, 2005) Özcan, A.; Digonnet, M. J. F.; Kino, G. S.; Ay, Feridun; Aydınlı, Atilla
    Accurate measurements of the second-order nonlinearity profile of thermally poled low-loss germanosilicate films grown on fused-silica substrates are reported, of interest as potential electro-optic devices. After optimization, we demonstrate a record high nonlinear coefficient d 33 ≈ 1.6 pm/V, a two-fold improvement over highest reported d 33 value in fused silica that we attribute to the presence of germanium.