Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1483083 | Journal of Non-Crystalline Solids | 2008 | 6 Pages |
Abstract
The second-order nonlinearities in thermally poled lead borate glasses were studied. After poling with different electrodes, both bulk and near surface second-order nonlinearities were obtained. The second harmonic generation signal from near surface effect was two orders of magnitude larger than the bulk effect. By simulating the poling process with a multiple carrier model, we concluded that the bulk second-order nonlinearity was caused by the deficiency of Pb2+ in a thick layer after poling, and the near surface second-order nonlinearity was caused by the depletion of H+ in a thin layer when H+ injection from the atmosphere was blocked.
Related Topics
Physical Sciences and Engineering
Materials Science
Ceramics and Composites
Authors
Xiaowei Ye, Liying Liu, Lei Xu, Wencheng Wang, Mario Affatigato, Steve Feller,