Thermally poled new borate glasses for second harmonic generation

Second harmonic generation induced by poling in borophosphate bulk and thin film glasses

“…Nazabal et al studied borophosphate and borate glasses and announce NLO coefficients with the same order of magnitude compared to that of silica glass when large rate of titanium or niobium oxide are introduced in the glasses compositions [20,21]. Tanaka et al studied tellurite glasses and recently published a 2 pm/V NLO coefficient [22].…”

Second harmonic generation in poled tellurite glass

“…The creation of a depletion zone is induced near the anodic face with a few microns depth as it has been experimentally proved mainly in silica glass but also in more exotic oxide glasses [6][7][8]. Poling of fused silica glass has been already largely reported [1,2,4,5,[8][9][10][11][12]. In order to explore the occurrence of the previously given mechanisms in non-silica glass an investigation of the optical properties of a new tellurite glass with molar composition 70%TeO 2 -25%Pb(PO 3 ) 2 -5%Sb 2 O 3 is reported.…”

“…An expended model including ion-exchange between a high mobility ion and a much lower mobility ion (related to H þ ) driven by the high electric field has also been proposed [5]. The creation of a depletion zone is induced near the anodic face with a few microns depth as it has been experimentally proved mainly in silica glass but also in more exotic oxide glasses [6][7][8]. Poling of fused silica glass has been already largely reported [1,2,4,5,[8][9][10][11][12].…”

“…In order to explore the occurrence of the previously given mechanisms in non-silica glass an investigation of the optical properties of a new tellurite glass with molar composition 70%TeO 2 -25%Pb(PO 3 ) 2 -5%Sb 2 O 3 is reported. The choice of the composition took into account the expected high susceptibility v ð3Þ for a lead-tellurite glasses, and the previously reported ability of terminal phosphate entities to reorientation under poling treatment [7,8].…”

Chalcogenide Glasses Based on Germanium Disulfide for Second Harmonic Generation

“…The thermal poling method remains the easiest technique to create a second-order nonlinearity and has led to reproducible results in several kinds of glasses from silicates to tellurites, including borates and phosphates. [2,5,7,8] This technique, used to break the centrosymmetry of the glass, consists of applying a high dc electric field while heating the sample at a temperature below its glass-transition temperature (T g ). According to Mukherjee et al, [9] the creation of the second-order nonlinearity lies in the existence of residual dc electric fields frozen within the sample after cooling and removing the applied dc voltage.…”