Experimental investigation of the hyperfine spectra of Pr I – lines: discovery of new fine structure levels with low angular momentum

We present 39 odd and 15 even parity newly discovered fine structure levels of Pr I with low angular momentum: J  = 1/2, 3/2 and 5/2. Spectral lines in the range 4200 Å to 7500 Å were experimentally investigated using laser induced fluorescence spectroscopy in a hollow cathode discharge lamp. The le...

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Bibliographic Details
Published in:The European physical journal. D, Atomic, molecular, and optical physics Atomic, molecular, and optical physics, 2011-10, Vol.64 (2-3), p.209-220
Main Authors: Shamim, K., Siddiqui, I., Windholz, L.
Format: Article
Language:English
Subjects:
Angular momentum
Applications of Nonlinear Dynamics and Chaos Theory
Atomic
Atomic and molecular physics
Atomic properties and interactions with photons
Discharge lamps
Exact sciences and technology
Fine and hyperfine structure
Fine structure
Fluorescence
Lasers
Molecular
Optical and Plasma Physics
Parity
Physical Chemistry
Physics
Physics and Astronomy
Properties of atoms and atomic ions
Quantum Information Technology
Quantum Physics
Regular Article
Spectral lines
Spectroscopy
Spectroscopy/Spectrometry
Spintronics
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Summary:We present 39 odd and 15 even parity newly discovered fine structure levels of Pr I with low angular momentum: J  = 1/2, 3/2 and 5/2. Spectral lines in the range 4200 Å to 7500 Å were experimentally investigated using laser induced fluorescence spectroscopy in a hollow cathode discharge lamp. The levels were discovered by analysis of the recorded hyperfine patterns of the investigated transitions. With the help of these levels, 119 spectral lines were classified directly by laser excitation and 127 lines were classified as fluorescence lines.
ISSN:1434-6060
1434-6079
DOI:10.1140/epjd/e2011-20250-9