6533b824fe1ef96bd128000b
RESEARCH PRODUCT
Nanopatterned ferroelectric crystals for parametric generation
Gaetano AssantoClaudia SantiniS. Riva-sanseverinoAlessandro BusaccaAlfonso Carmelo CinoLorenzo ColaceAlessia PasquaziMatteo CherchiAntonino ParisiSalvatore Stivalasubject
Nonlinear integrated opticsOptical frequency multiplierMaterials sciencebusiness.industryParametric generationPolingLithium niobateSecond-harmonic generationPhysics::OpticsLithium tantalateSurface periodic polingLithium niobateFerroelectricityOptical parametric amplifierchemistry.chemical_compoundOpticschemistryPeriodic polingLithium tantalatebusinessdescription
We report on recent results by surface periodic poling on lithium niobate and lithium tantalate. Such approach allows periodic inversion of the second order susceptibility with nanoscale features using insulating masks. We achieved a world-best 200 nm feature size, as well as good compatibility with alpha-phase proton exchanged channel waveguides in lithium niobate. Preliminary results of surface periodic poling in lithium tantalate also show similar characteristics. Surface poling is best suited for integrated optics devices in technologically-demanding configurations such as backward second harmonic generation and counter propagating optical parametric amplification
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2006-06-01 |