Applied Optics · 1990 · 15 citations · 8 references
Natural SciencesMaterials EngineeringMaterials ScienceAnalytical ChemistryPhotonicsSpectroscopyAtomic SpectroscopyLaser Host MaterialsLaser PhysicsLaser SpectroscopyOptical SpectroscopyRaman SpectroscopyDistribution CoefficientLaser DiagnosticsRaman CalibrationRaman InstrumentationRaman SpectraSpectrometer CalibrationSpectrometer DesignSpectroscopic Characterization Of Laser Hosts
A nondestructive method for measurements of Nd(3+) concentration in Nd:YLF laser rodes is presented. The method, based on the comparison of the intensities of Nd(3+) luminescence lines to the intensities of the host matrix (LiYF(4)) Raman lines, requires the use of a micro-Raman spectrometer. The experimental conditions have been optimized and are described in detail. The investigations were performed in the concentration range 0at.%-2at.% of Nd and the calibration curve is presented. In standard use, the relative error on the results never exceeds 10%. Using this method to study the concentration gradient in a crystal is shown and the distribution coefficient of Nd(3+) in LiYF(4) is deduced.
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The Spectra of the Doubly and Triply Ionized Rare Earths
G. H. Dieke, H. M. Crosswhite · Applied Optics · 1963 · 1.1K citations
Steven A. Miller, H. E. Rast, H. Caspers · The Journal of Chemical Physics · 1970 · 108 citations