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We used an all-optical poling method to fabricate quadratic nonlinearity gratings in a tetragonal 0.62Pb(Mg1/3Nb2/3)O3-0.38PbTiO3 (PMN-38PT) crystal. We then employed these gratings in quasi-phase matched collinear second harmonic generation processes.… Click to show full abstract
We used an all-optical poling method to fabricate quadratic nonlinearity gratings in a tetragonal 0.62Pb(Mg1/3Nb2/3)O3-0.38PbTiO3 (PMN-38PT) crystal. We then employed these gratings in quasi-phase matched collinear second harmonic generation processes. By measuring the second harmonic output, we provided, for the first time, to the best of our knowledge, quantitative estimates of all three non-zero quadratic nonlinearity coefficients of the PMN-38PT crystal.
Keywords:
second harmonic;
pmn 38pt;
quasi phase;
phase matched;
harmonic generation;
38pt crystal
Journal Title: Optics letters
Year Published: 2022
Link to full text (if available)
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Journal Title: Optics letters
Year Published: 2022
Link to full text (if available)
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recommendations!