6533b7d5fe1ef96bd1265314
RESEARCH PRODUCT
Random quasi-phase-matched second-harmonic generation in periodically poled lithium tantalate
Alessandro BusaccaSalvatore StivalaRoberto MorandottiGaetano AssantoRoberto Luigi OliveriAlessia Pasquazisubject
PhysicsNonlinear opticNonlinear optics; Harmonic generation and mixingPhase (waves)FOS: Physical sciencesResonanceSecond-harmonic generationPhysics::OpticsHarmonic generation and mixing01 natural sciencesAtomic and Molecular Physics and Optics010309 opticsNonlinear systemchemistry.chemical_compoundchemistry0103 physical sciencesLithium tantalateHarmonicAtomic physics010306 general physicsAnisotropyExcitationOptics (physics.optics)Physics - Opticsdescription
We observe second harmonic generation via random quasi-phase-matching in a 2.0 micron periodically poled, 1-cm-long, z-cut lithium tantalate. Away from resonance, the harmonic output profiles exhibit a characteristic pattern stemming from a stochastic domain distribution and a quadratic growth with the fundamental excitation, as well as a broadband spectral response. The results are in good agreement with a simple model and numerical simulations in the undepleted regime, assuming an anisotropic spread of the random nonlinear component. (C) 2010 Optical Society of America
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2010-01-01 |