AI Article Synopsis
- Second harmonic generation (SHG) was successfully achieved in sodium niobium orophosphate glass using thermal poling treatment.
- The SHG signal was analyzed through transmitted and reflected polarized Maker-fringe patterns to estimate the nonlinear optical efficiency.
- A high chi(2) susceptibility value of 5.0 +/- 0.3 pm/V was attained, indicating a sodium-depleted nonlinear layer up to 5 micrometers deep, revealing a complex response involving space-charge migration in the glass matrix.
Article Abstract
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.
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| http://dx.doi.org/10.1364/opex.13.004064 | DOI Listing |
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