473 citations · 4.2k across the 32 of their papers we have counts for
3 papers · 2 filters
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…
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…