Laser magnetic resonance of metastable krypton and xenon atoms

Sears, Trevor J.; McKellar, A. R. W.

doi:10.1139/p82-046

Can. J. Phys.

1982

DOI: 10.1139/p82-046

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Laser magnetic resonance of metastable krypton and xenon atoms

Trevor J. Sears¹,

A. R. W. McKellar²

Abstract: Magnetic dipole transitions from the metastable ls5 (3P2) state to the ls4 (3P1) state in atomic krypton and xenon have been detected and measured using the technique of intracavity laser magnetic resonance spectroscopy with CO2 laser lines in the 10 μm region. The excited atoms were produced by a low voltage dc discharge in a flow of helium carrier gas. Precise values for the Kr and Xe ls4– ls5 interval and for the magnetic gj-factor of ls4 in Kr were determined in an analysis of the observed spectra.

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Energy Levels and Observed Spectral Lines of Krypton, Kr I through Kr XXXVI

Saloman

2007

Journal of Physical and Chemical Reference Data

158

139

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The energy levels and observed spectral lines of the krypton atom, in all stages of ionization for which experimental data are available, have been compiled. Sufficient data were found to generate level and line tables for Kr I–Kr X and Kr XVIII–Kr XXXVI. For Kr XXXV and Kr XXXVI and most of Kr XXXIV theoretical values are compiled for the energy levels. In all of the other stages a few lines, some of which may be only tentative classifications, are reported. In addition for Kr I, separate tables of energy levels are tabulated for the isotopes Kr86 and Kr84. Experimental g factors are included for Kr I and Kr II. A value, either experimental, semiempirical, or theoretical, is included for the ionization energy of each ion.

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Energy Levels and Observed Spectral Lines of Krypton, Kr I through Kr XXXVI

Saloman

2007

Journal of Physical and Chemical Reference Data

158

139

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Precise measurement of the J=2←1 fine structure interval in N(II) by far-infrared laser magnetic resonance

Cooksy

Hovde

Saykally

1986

The Journal of Chemical Physics

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Far-infrared laser magnetic resonance spectroscopy has been used to measure the J=2←1 fine structure intervals in the 3P ground states of singly ionized 14N and 15N atoms. In 14N(II) this separation is 2459.3703(14) GHz, and in 15N(II) it is 2459.3816(19) GHz. The hyperfine constants and gJ factors have been evaluated for both isotopes. Zero field energies for the hyperfine components of the J=2←1 transition in both isotopes are given in an effort to facilitate their observation in interstellar sources. A complete description of the hyperfine and Zeeman Hamiltonian matrix elements for atomic fine structure transitions is given in an LS coupled basis set.

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Measurement of the 2D5/2–2D3/2 fine structure interval in metastable nitrogen atoms at 1.15 mm by laser magnetic resonance

Bley

Koch

Temps

et al. 1989

The Journal of Chemical Physics

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Far infrared laser magnetic resonance (LMR) spectra of metastable (2p3)2D nitrogen atoms have been measured using laser lines in carbonyl fluoride (COF2) at 1135 μm and methanol (CH3OH) at 1224 μm. The concentration of N 2D was optimized by electron paramagnetic resonance (EPR) using a hybrid EPR/LMR spectrometer. The far infrared cavity of this spectrometer was designed to oscillate at wavelengths longer than 1 mm. The LMR spectra were analyzed using g factors derived from the EPR spectrum [Radford and Evenson, Phys. Rev. 168, 70 (1968)] and yield a precise value of the 2D5/2–2D3/2 fine structure separation of −261 447.7(2) MHz, −8.720 957(7) cm−1(2σ).

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Laser magnetic resonance of metastable krypton and xenon atoms

Cited by 5 publications

References 11 publications

Energy Levels and Observed Spectral Lines of Krypton, Kr I through Kr XXXVI

Energy Levels and Observed Spectral Lines of Krypton, Kr I through Kr XXXVI

Precise measurement of the J=2←1 fine structure interval in N(II) by far-infrared laser magnetic resonance

Measurement of the 2D5/2–2D3/2 fine structure interval in metastable nitrogen atoms at 1.15 mm by laser magnetic resonance

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