30 citations · 60 across the 4 of their papers we have counts for
4 papers
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…
Second harmonic generation in surface periodically-poled lithium niobate waveguides: on the role of multiphoton absorption
M. Cherchi, S. Stivala, A. Pasquazi +5
Second harmonic generation is investigated in lithium niobate channels realized by proton exchange and quasi-phase-matched by surface periodic-poling. The reduction in conversion e…
Exploiting the optical quadratic nonlinearity of zincblende semiconductors for guided-wave terahertz generation: a material comparison
Matteo Cherchi, Alberto Taormina, Alessandro C. Busacca +6
We present a detailed analysis and comparison of dielectric waveguides made of CdTe, GaP, GaAs and InP for modal phase matched optical difference frequency generation (DFG) in the…
The role of nonlinear optical absorption in narrow-band difference frequency terahertz-wave generation
Matteo Cherchi, Saverio Bivona, Alfonso C. Cino +2
We present a general analysis of the influence of nonlinear optical absorption on terahertz generation via optical difference frequency generation, when reaching for the quantum co…