27 citations · 103 across the 6 of their papers we have counts for
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Random quasi-phase-matched second-harmonic generation in periodically poled lithium tantalate
Salvatore Stivala, Alessandro C. Busacca, Alessia Pasquazi +3
We observe second harmonic generation via random quasi-phase-matching in a 2.0 μm periodically poled, 1-cm-long, z-cut lithium tantalate. Away from resonance, the harmonic output p…
Nonlinear Disorder Mapping Through Three-Wave Mixing
Alessia Pasquazi, Alessandro Busacca, Salvatore Stivala +2
We implement a simple and powerful approach to characterize the domain distribution in the bulk of quadratic ferroelectric crystals via far-field second-harmonic spectroscopy. The…
High resolution x-ray investigation of periodically poled lithium tantalate crystals with short periodicity
Marco Bazzan, Cinzia Sada, Nicola Argiolas +5
Domain engineering technology in lithium tantalate is a well studied approach for nonlinear optical applications. However, for several cases of interest, the realization of short p…
Guided-wave frequency doubling in surface periodically poled lithium niobate: competing effects
Salvatore Stivala, Alessia Pasquazi, Lorenzo Colace +6
We carried out second-harmonic generation in quasi-phase-matched α-phase lithium niobate channel waveguides realized by proton exchange and surface periodic poling. Owing to a limi…
Features of randomized electric-field assisted domain inversion in lithium tantalate
Salvatore Stivala, Fabrizio Buccheri, Luciano Curcio +3
We report on bulk and guided-wave second-harmonic generation via random Quasi-Phase-Matching in Lithium Tantalate. By acquiring the far-field profiles at several wavelengths, we ex…
Continuous-wave backward frequency doubling in periodically poled lithium niobate
Salvatore Stivala, Alessandro C. Busacca, Luciano Curcio +3
We report on backward second-harmonic-generation in bulk periodically poled congruent lithium niobate with a 3.2 microns period. A tunable continuous-wave Ti:sapphire laser allowed…