Search results for "Quasi-phase-matching"

showing 6 items of 16 documents

Dynamics of four-wave-mixing oscillators with quasi-phase-matching

2009

The effect of pump-wave misalignment on the oscillation spectra of a semilinear photorefractive oscillator is studied numerically and compared with the results of experiments performed with ${\text{BaTiO}}_{3}:\text{Co}$ and ${\text{KNbO}}_{3}:\text{Ag},\text{Fe}$ crystals.

Quasi-phase-matchingPhysicsFour-wave mixingOpticsCondensed matter physicsbusiness.industryOscillationFrequency mixingPhotorefractive effectPhase conjugationbusinessAtomic and Molecular Physics and OpticsSpectral linePhysical Review A
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Random quasi-phase matching in congruent lithium tantalate waveguides by proton exchange

2012

A report is presented on broadband second-harmonic generation in the range between 930 and 970 nm using random quasi-phase matching in a planar waveguide fabricated by soft proton exchange in congruent lithium tantalate. Bulk and waveguide measurements are compared, outlining the averaging role of guided-wave modes and their interactions with respect to spectral acceptance and near-field profile.

Quasi-phase-matchingRandom quasi-phase matchingRange (particle radiation)Materials scienceProtonbusiness.industryPhysics::OpticsSettore ING-INF/02 - Campi ElettromagneticiMolecular physicsSettore ING-INF/01 - Elettronicalaw.inventionchemistry.chemical_compoundPlanarOpticschemistrylawLithium tantalateBroadbandlithium tantalateElectrical and Electronic EngineeringbusinessWaveguideoptical waveguide
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GENERAZIONE DI SECONDA ARMONICA MEDIANTE RANDOM QUASI-PHASE-MATCHING IN TANTALATO DI LITIO POLATO PERIODICAMENTE

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.

Random quasi-phase-matchingtantalato di litio
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Random Quasi-Phae-Matching in Tantalatio di Litio: origine del fenomeno, confronto tra propagazione bulk e guidata.

2011

We observe second harmonic generation via random quasi phase matching in a 1.5μm periodically poled lithium tantalate. The presence of a slab waveguides allows the comparison between bulk and guided wave configurations.

Settore ING-INF/02 - Campi Elettromagneticirandom quasi-phase-matching Tantalatio di Litio mark-to-space-ratio generazione di seconda armonica scambio protonico.Settore ING-INF/01 - Elettronica
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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
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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)
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