OBSERVATION OF SOME _ = 1/2 ELECTRONIC STATES OF NICKEL DEUTERIDE, NiD, WITH LASER-INDUCED FLUORESCENCE

2019 ◽  
Author(s):  
Dennis Tokaryk ◽  
Allan Adam ◽  
Patrick Crozet ◽  
Amanda Ross
Keyword(s):  
Electronic States ◽  
Laser Induced Fluorescence

Laser-induced fluorescence and discharge emission spectra of CrO. Rotational analysis of the A5Π–X5Π transition

1980 ◽  
Vol 58 (4) ◽  
pp. 516-533 ◽  
Author(s):  
W. H. Hocking ◽  
A. J. Merer ◽  
D. J. Milton ◽  
W. E. Jones ◽  
G. Krishnamurty
Keyword(s):  
Fluorescence Spectra ◽  
Rotational Temperature ◽  
Electronic States ◽  
Emission Spectra ◽  
Laser Induced Fluorescence ◽  
Spin Orbit Coupling ◽  
Excitation Spectra ◽  
Large Numbers ◽  
Parallel Polarization ◽  
Indirect Information

The A5Π–X5Π electronic transition of CrO, near 6000 Å, has been analysed in detail using laser-induced fluorescence and conventional discharge emission spectroscopy. The transition provides the first instance where it has been possible to analyse the rotational structures of quintet electronic states completely. Although the parallel polarization of the transition has prevented the spin–orbit coupling and Λ-doubling intervals from being observed directly, it is shown that sufficient indirect information exists in the spectrum for them to be obtained with fair precision. The excited state, A5Π, is perturbed by large numbers of other electronic states which have no intensity of their own for emission to the ground state. The analysis of the perturbed regions has been greatly facilitated by the laser-induced fluorescence spectra: the excitation spectra correspond to a rotational temperature close to room temperature (which offers a significant improvement in resolution over the discharge spectra), and the J-assignments of the perturbed lines given by the resolved fluorescence spectra are unambigious

Containerless Study of Metal Evaporation by Laser Induced Fluorescence

1986 ◽  
Vol 87 ◽  
Author(s):  
Robert A. Sghiffman ◽  
Paul C. Nordine
Keyword(s):  
Laser Heating ◽  
Electronic States ◽  
Laser Induced Fluorescence ◽  
Temperature Data ◽  
Radiative Heating ◽  
Atomic Vapors ◽  
Metal Evaporation ◽  
Tungsten Filaments ◽  
Laser Heated ◽  
Electromagnetically Levitated

AbstractLaser induced fluorescence (LIF) detection of atomic vapors was used to study evaporation from electromagnetically levitated and CW CO2 laser heated molydenum spheres and resistively heated tungsten filaments. Electromagnetic (EM) levitation in combination with laser heating of tungsten, zirconium, and aluminum specimens was also investigated. LIF intensity vs temperature data were obtained for molybdenum ( 7S3 ) atoms and six electronic states of atomic tungsten, at temperatures up to the melting point of each metal. The detected fraction of the emitted radiation was reduced by self-absorption effects at the higher experimental temperatures.Vaporization enthalpies derived from data for which less than half the LIF intensity was self-absorbed were ΔHo0 = -636 ± 24 kJ/g-mol for Mo and 831 ± 32 kJ/g-mol for W. Space-based applications of EM levitation in combination with radiative heating are discussed.

The Spectrum of CuO: Low Lying Electronic States Observed by Laser Induced Fluorescence

1980 ◽  
Vol 22 (6) ◽  
pp. 603-608 ◽  
Author(s):  
O Appelblad ◽  
A Lagerqvist ◽  
I Renhorn ◽  
R W Field
Keyword(s):  
Electronic States ◽  
Laser Induced Fluorescence
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