Large second-harmonic generation of thermally poled sodium borophosphate glasses
Language
en
Article de revue
This item was published in
Optics Express. 2005, vol. 13, n° 11, p. 4064-4069
Optical Society of America - OSA Publishing
English Abstract
Second harmonic generation (SHG) has been obtained in a rich in sodium niobium borophosphate glass by a thermal poling treatment. The thermally poled glass SHG signal has been studied through an original analysis of both ...Read more >
Second harmonic generation (SHG) has been obtained in a rich in sodium niobium borophosphate glass by a thermal poling treatment. The thermally poled glass SHG signal has been studied through an original analysis of both transmitted and reflected polarized Maker-fringe patterns. Therefore, the second order nonlinear optical (NLO) efficiency was estimated from the simulation of the Maker-fringe patterns with a stepwise decreasing profile from the anode surface. A reproducible χ(2) susceptibility value as high as 5.0 ±0.3 pm/V was achieved at the anode side. The nonlinear layer, found to be sodium-depleted up to 5 µm deep inside the anode side, identical to the simulated nonlinear zone thickness, indicates a complex space-charge-migration/ nonlinear glass matrix response process.Read less <
English Keywords
Amorphous materials
Glass
Nonlinear optical materials
Origin
Hal imported