6533b873fe1ef96bd12d5546

RESEARCH PRODUCT

Multi-color resonance ionization of laser ablated gadolinium at high laser power

Sergei KarpukI. StrachnovKlaus EberhardtM.c. Roca-saizKlaus WendtJ. MaulGerd PasslerNorbert TrautmannG. Huber

subject

Materials scienceMatrix-assisted laser desorption electrospray ionizationLaser ablationPhotoionizationLaserAtomic and Molecular Physics and OpticsIon sourceElectronic Optical and Magnetic Materialslaw.inventionAtmospheric-pressure laser ionizationlawIonizationPhysics::Atomic and Molecular ClustersPhysics::Atomic PhysicsLaser power scalingElectrical and Electronic EngineeringPhysical and Theoretical ChemistryAtomic physics

description

Abstract Spectroscopic and analytical properties of a trace analytical method using multi-step resonance ionization at high laser intensities (>kW/cm 2 ) have been investigated with gadolinium as a test element. Strongly saturated transitions are observed, which have been used for a temperature determination of the atoms in the laser ablated plume. Regimes of multi-step resonance ionization and multiphoton ionization could be distinguished. Analytical performances due to resonance enhancement and resulting discrimination against non-resonant background, precision in isotope ratio determination and overall detection efficiency are discussed.

yearjournalcountryeditionlanguage
2005-12-01Optics Communications
https://doi.org/10.1016/j.optcom.2005.06.088