Effect of sodium to barium substitution on the space charge implementation in thermally poled glasses for nonlinear optical applications
MALAKHO, Artem
Institut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
Department of Material Science
Institut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
Department of Material Science
DUSSAUZE, Marc
Theoretical and Physical Chemistry Institute
Institut des Sciences Moléculaires [ISM]
See more >
Theoretical and Physical Chemistry Institute
Institut des Sciences Moléculaires [ISM]
MALAKHO, Artem
Institut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
Department of Material Science
Institut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
Department of Material Science
DUSSAUZE, Marc
Theoretical and Physical Chemistry Institute
Institut des Sciences Moléculaires [ISM]
< Reduce
Theoretical and Physical Chemistry Institute
Institut des Sciences Moléculaires [ISM]
Language
en
Article de revue
This item was published in
Journal of Solid State Chemistry. 2009, vol. 182, n° 5, p. 1156-1163
Elsevier
English Abstract
Thermally poled niobium borophosphate glasses in the system 0.55(0.95−<i>y</i>) NaPO<sub>3</sub>+<i>y</i>/2 Ba(PO<sub>3</sub>)<sub>2</sub>+0.05Na<sub>2</sub>B<sub>4</sub>O<sub>7</sub>)+0.45Nb<sub>2</sub>O<sub>5</sub> were ...Read more >
Thermally poled niobium borophosphate glasses in the system 0.55(0.95−<i>y</i>) NaPO<sub>3</sub>+<i>y</i>/2 Ba(PO<sub>3</sub>)<sub>2</sub>+0.05Na<sub>2</sub>B<sub>4</sub>O<sub>7</sub>)+0.45Nb<sub>2</sub>O<sub>5</sub> were investigated for second order optical nonlinear (SON) properties. Bulk glasses were studied by Raman spectroscopy, thermal analysis, optical and dielectric measurements. The sodium to barium substitution does not lead to significant changes in optical properties, crystallization of glasses and coordination environment of polarizable niobium atoms. However, the ionic conductivity decreases drastically with the increase of barium concentration. Secondary ion mass spectroscopy has been used to determine the element distribution in the anode layer of the thermally poled glasses. The second order optical susceptibilities gradually decrease from <i>χ</i><sup>(2)</sup>=2.8 pm/V to zero with the increase of barium content. Using a simple electrical model, variations of nonlinear optical responses have been correlated with dielectric characteristics.Read less <
English Keywords
Thermal poling
Space charge
Second harmonic generation
Borophosphate glasses
Ionic conductivity
Origin
Hal imported