Open AccessLarge second-harmonic generation of thermally poled sodium borophosphate glasses
Author(s) -
Marc Dussauze,
Evelyne Fargin,
Michel Lahaye,
Vincent Rodriguez,
Frédéric Adamietz
Publication year - 2005
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/opex.13.004064
Subject(s) - poling , materials science , second harmonic generation , optics , anode , nonlinear optics , niobium , optoelectronics , electrode , laser , chemistry , physics , dielectric , metallurgy , ferroelectricity
Second harmonic generation (SHG) has been obtained in a rich in sodium niobium orophosphate 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 chi(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 microm deep inside the anode side, identical to the simulated nonlinear zone thickness, indicates a complex space-charge-migration/ nonlinear glass matrix response process.