Search results for " Random quasi-phase-matching"

showing 6 items of 6 documents

Nonlinear Disorder Mapping via Wave Mixing in poled Lithium Tantalate

2010

We introduce and test a simple approach for the characterization of domain distribution in bulk quadratic ferroelectric crystals, specifically periodically poled Lithium Tantalate with random mark-to space ratio.

Materials scienceCondensed matter physicsbusiness.industryPhysics::OpticsSecond-harmonic generationSpace (mathematics)Second-harmonic generation Random quasi-phase-matching Image analysischemistry.chemical_compoundsymbols.namesakeNonlinear systemFourier transformQuadratic equationOpticschemistryLithium tantalatesymbolsSpatial frequencybusinessMixing (physics)Advanced Photonics & Renewable Energy
researchProduct

PARAMETRIC SELF-TRAPPING OF OPTICAL BEAMS VIA RANDOM QUASI PHASE MATCHING IN LITHIUM TANTALATE WAVEGUIDE

2011

We report on experimental evidence of parametric spatial solitons in a lithium tantalate waveguide with randomized periodic ferroelectric poling. Two-color self-focusing via quadratic cascading overcomes the diffractive nature of both fundamental and frequency-doubled beams.

Nonlinear optics Parametric solitons Random quasi-phase-matchingSettore ING-INF/02 - Campi ElettromagneticiSettore ING-INF/01 - Elettronica
researchProduct

MAPPATURA DEL DISORDINE NON LINEARE MEDIANTE INTERAZIONE PARAMETRICA A TRE ONDE

2010

We introduce a simple approach for characterizing the ferroelectric domain distribution in bulk quadratic crystals. The approach is demonstrated in a lithium tantalate sample with periodic electric field poling and random mark-to-space ratio.

Nonlinear optics Random quasi-phase-matching Image analysis
researchProduct

Broadband Second-Harmonic Generation via Random Quasi-Phase-Matching in PPLT

2010

We demonstrated broadband second-harmonic generation via random Quasi-Phase-Matching in periodically poled Lithium Tantalate.

PhysicsQuasi-phase-matchingSum-frequency generationbusiness.industryPhysics::OpticsSecond-harmonic generationNonlinear opticsWavelength conversionPhysics::Classical PhysicsComputer Science::OtherNonlinear optics Parametric conversion Random quasi-phase-matchingchemistry.chemical_compoundOpticschemistryLithium tantalateBroadbandbusinessPhase matching
researchProduct

AUTOFOCALIZZAZIONE VIA RANDOM QUASI-PHASE-MATCHING IN GUIDE D’ONDA DI TANTALATO di LITIO

2010

We observe self-localization of light beams via second harmonic generation in a quasi-phase-matched proton-exchanged Lithium Tantalate slab waveguide in the presence of a random component of the periodically-poled grating.

Solitons Random quasi-phase-matching Lithium tantalate
researchProduct

Random quasi-phase-matched second harmonic generation in periodically poled lithium tantalate

2009

We experimentally observed and explained bulk second harmonic generation via random quasi-phase-matching, derived from a periodically poled lithium tantalate sample with a randomly patterned mark-to-space-ratio.

chemistry.chemical_compoundOpticsMaterials sciencechemistrybusiness.industryHarmonic generation and mixing Nonlinear optics Random quasi-phase-matchingLithium tantalatePhase (waves)Physics::OpticsSecond-harmonic generationNonlinear opticsbusinessSample (graphics)
researchProduct