Search results for "Stimulated Raman Scattering"

showing 2 items of 2 documents

Study of the benzene⋅N2 intermolecular potential-energy surface

2003

The intermolecular potential-energy surface pertaining to the interaction between benzene and N2 is investigated theoretically and experimentally. Accurate intermolecular interaction energies are evaluated for the benzene–N2 van der Waals complex using the coupled cluster singles and doubles including connected triples [CCSD(T)] method and the aug-cc-pVDZ basis set extended with a set of 3s3p2d1f1g midbond functions. After fitting the energies to an analytic function, the intermolecular Schrödinger equation is solved to yield energies, rotational constants, and Raman-scattering coefficients for the lowest intermolecular levels of several benzene–N2 isotopomers. Experimentally, intermolecula…

Potential Energy SurfacesCoupled Cluster CalculationsNitrogenBinding energyGeneral Physics and AstronomyPotential Energy Functionssymbols.namesakePhysics and Astronomy (all)IsomerismQuasimoleculesRotational IsomerismPhysics::Atomic and Molecular ClustersQuantum-mechanical explanation of intermolecular interactionsRotational StatesPhysical and Theoretical ChemistryPhysics::Chemical Physics:FÍSICA::Química física [UNESCO]Basis setSchrodinger EquationChemistryOrganic CompoundsIsotope EffectsIntermolecular forceStimulated Raman ScatteringUNESCO::FÍSICA::Química físicaCoupled clustersymbolsAtomic physicsvan der Waals forceOrganic Compounds ; Nitrogen ; Quasimolecules ; Potential Energy Surfaces ; Potential Energy Functions ; Coupled Cluster Calculations ; Rotational States ; Isomerism ; Isotope Effects ; Stimulated Raman Scattering ; Rotational Isomerism ; Schrodinger EquationRaman spectroscopyRaman scattering
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Sources optiques infrarouges impulsionnelles ultra-courtes et spectralement ultra-larges générées par effet Raman dans les fibres creuses

2019

Gas-filled Hollow-Core Photonic Crystal Fibers (HC-PCF) are efficient tools regarding ultra-wide and coherent optical frequency combs by Stimulated Raman Scattering (SRS). Coherence is reached thanks to highly transient regime as it allows amplification, from quantum to macroscopic level, of a unique spatial and temporal mode (TSM). This results in the generation of Stokes waves with a well-determined phase. The present work details on which time scale coherence can subsist, between two consecutive pulses. The possibility of making a new kind of mode-lock is studied. Then the extreme versatility of gas-filled HC-PCF is illustrated by presenting different kind of new laser sources, exploitin…

Wave synthesisPeignes de fréquencesHollow-core fibers[SPI.OPTI]Engineering Sciences [physics]/Optics / PhotonicStimulated Raman scatteringFrequency combsSynthèse d’ondesInfraredInfrarougeFibres creusesDiffusion Raman stimulée
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