HYPERFINE STRUCTURE IN THE GROUND CONFIGURATION OF BISMUTH

1967 ◽  
Vol 45 (7) ◽  
pp. 2249-2251 ◽  
Author(s):  
L. O. Dickie ◽  
F. M. Kelly
Keyword(s):  
Hyperfine Interaction ◽  
Hyperfine Structure ◽  
Liquid Nitrogen ◽  
Quadrupole Moment ◽  
Hollow Cathode ◽  
Fabry Perot

The hyperfine structure of the 2D3/2 and 2P1/2 levels of the 6p3 ground configuration of Bi I has been determined from the h.f.s. of the λ 4 722 Å and λ 4 121 Å lines of the arc spectrum. The spectrum was excited in a liquid nitrogen cooled hollow cathode source and the structure resolved with a Fabry–Pérot interferometer. The hyperfine interaction constants and the quadrupole moment have been calculated as follows: for 2D3/2,[Formula: see text]

Analyse Rotationnelle de la Bande (0,0) du Système Orange de ScO

1972 ◽  
Vol 50 (4) ◽  
pp. 395-403 ◽  
Author(s):  
R. Stringat ◽  
C. Athénour ◽  
J. L. Féménias
Keyword(s):  
Excited State ◽  
Hyperfine Interaction ◽  
Hyperfine Structure ◽  
Liquid Nitrogen ◽  
Hollow Cathode ◽  
Ground State ◽  
Type B ◽  
Hollow Cathode Lamp ◽  
Magnetic Hyperfine Interaction ◽  
Coupling Case

The orange system of ScO has been reanalyzed as a 2Π → 2Σ transition. We have observed all the branches which are compatible with the selection rules ΔJ = 0, ± 1. We have not detected the hyperfine structure in the excited state, the coupling case being therefore aβ. The magnetic hyperfine interaction inducing the ground state doubling is the only one which appears; it has been analyzed by other authors who have shown that the coupling case for this state is of the type bβS.The use of an alloy hollow-cathode lamp, cooled with liquid nitrogen, has enabled us to improve the frequency measurements. The values of the constants have been obtained by a method by which, working directly with the Hamiltonian, the introduction of each parameter can be justified. The study of the Λ doubling in 2Π3/2 and 2Π1/2 levels leads us to values of ξ and η very close to those predicted for a pure precession case.

Isotope shift and hyperfine structure in the atomic spectrum of tin

1973 ◽  
Vol 332 (1588) ◽  
pp. 129-138 ◽  
Keyword(s):  
Stable Isotopes ◽  
Hyperfine Structure ◽  
Nuclear Charge ◽  
Light Sources ◽  
Atomic Spectrum ◽  
Nuclear Charge Distribution ◽  
Fabry Perot ◽  
Self Consistent ◽  
Structure Constants ◽  
Good Agreement

Three lines in the atomic spectrum of tin, λ 3262 Å, λ 3283 Å and λ 6454Å have been studied in emission under high resolution with the use of light sources containing enriched isotopic samples. Results are reported for isotope shifts in these lines for the abundant stable isotopes ( A ≽ 116). Pressure-scanned Fabry–Perot etalons provided the necessary resolution; the spectrograms for λ 6454 Å were recorded and analysed by digital techniques, and for this line hyperfine structure constants required in the interpretation of the data were also evaluated. The results for the three lines are not in good agreement with earlier work, but are shown to be self-consistent by means of a King plot. Their interpretation in terms of the nuclear charge distribution is considered in the following paper.

Isotope shifts in the NdI spectrum

1964 ◽  
Vol 277 (1371) ◽  
pp. 540-548 ◽  
Keyword(s):  
Hollow Cathode ◽  
Isotope Shifts ◽  
Photoelectric Detector ◽  
Cathode Tube ◽  
Fabry Perot ◽  
Hollow Cathode Tube

Isotope shifts in about fifty lines of the Nd I spectrum emitted by a hollow cathode tube, in the region 5200 to 6000 Å, have been recorded on a Fabry-Perot spectrometer equipped with a photoelectric detector. The results are used to examine the existing classification of the spectrum . The structure of the line 5525-7 Å suggests the inversion of the odd-even staggering phenomenon for 143 Nd.

STUDIES OF THE SPIN-HAMILTONIAN PARAMETERS AND OPTICAL SPECTRUM BAND POSITIONS FOR THE Yb3+ ION IN Tm3Al5O12 CRYSTALS

2009 ◽  
Vol 23 (20n21) ◽  
pp. 2457-2462 ◽  
Author(s):  
HONG-GANG LIU ◽  
WEN-CHEN ZHENG ◽  
WEN-LIN FENG ◽  
WEI-QING YANG
Keyword(s):  
Hyperfine Interaction ◽  
Hyperfine Structure ◽  
Matrix Method ◽  
Optical Spectrum ◽  
Spin Hamiltonian ◽  
Energy Matrix ◽  
Interaction Terms ◽  
Structure Constants ◽  
Spectrum Band ◽  
Hamiltonian Parameters

The spin-Hamiltonian parameters (g factors gi and hyperfine structure constants Ai, where i = x, y, z) and optical spectrum band positions of the Yb 3+ ion in the rhombically-distorted Tm 3+ site of Tm 3 Al 5 O 12 garnet crystal are calculated by a complete diagonalization (of the energy matrix) method, in which the Zeeman and hyperfine interaction terms are also included in the conventional Hamiltonian. From the calculations, the observed spin-Hamiltonian parameters of Tm 3 Al 5 O 12: Yb 3+ are explained reasonably and the optical spectrum band positions are suggested. The rationality of these suggested optical spectrum band positions is discussed by comparing them with the observed values of Yb 3+ ions in similar aluminum garnet ( Yb 3 Al 5 O 12, Y 3 Al 5 O 12 and Lu 3 Al 5 O 12) crystals.

Sternheimer free determination of theCo59nuclear quadrupole moment from hyperfine-structure measurements

1993 ◽  
Vol 48 (4) ◽  
pp. 2752-2761 ◽  
Author(s):  
J. Dembczyński ◽  
G. H. Guthöhrlein ◽  
E. Stachowska
Keyword(s):  
Hyperfine Structure ◽  
Quadrupole Moment

THE MAGNETIC MOMENT OF INDIUM-115m

1962 ◽  
Vol 40 (8) ◽  
pp. 931-942 ◽  
Author(s):  
J. A. Cameron ◽  
H. J. King ◽  
H. K. Eastwood ◽  
R. G. Summers-Gill
Keyword(s):  
Magnetic Resonance ◽  
Hyperfine Interaction ◽  
Hyperfine Structure ◽  
Metastable State ◽  
Magnetic Moment ◽  
Atomic Beam ◽  
Electronic States ◽  
Nuclear Magnetic Moment ◽  
Hyperfine Anomaly ◽  
Nuclear Magnetic

The hyperfine structure of the 4.5-hour metastable state of indium-115 has been studied by the method of atomic beam magnetic resonance. The values found for the hyperfine interaction constants are −903.5 ± 1.1 and −95.973 ± 0.010 Mc/sec in the 2P1/2 and 2P3/2 electronic states respectively. Neglecting a possible hyperfine anomaly, these correspond to a nuclear magnetic moment for In115m of −0.24371 ± 0.00005 nuclear magnetons. The construction of the atomic beam apparatus, recently completed at McMaster University, is also described.

Hyperfine Structure Measurement of Rubidium Atom and Tunable Diode Laser Stabilization by Using Sagnac Interferometer

2006 ◽  
Vol 6 (11) ◽  
pp. 3559-3561
Author(s):  
Jin-Tae Kim ◽  
Liu Zhen ◽  
Venedikt Kapitanov ◽  
Hyun Su Kim ◽  
Jong Rak Park ◽  
...  
Keyword(s):  
Hyperfine Structure ◽  
Frequency Tuning ◽  
Free Spectral Range ◽  
Laser Frequency ◽  
Tunable Diode Laser ◽  
Sagnac Interferometer ◽  
Laser Stabilization ◽  
Saturation Spectroscopy ◽  
Rubidium Atom ◽  
Fabry Perot

The Rubidium saturated absorption spectra for D2 transition lines are used to measure the Fabry-Perot interferometer free spectral range (FSR). The scale linearity of the laser frequency tuning is determined. The Sagnac interferometer has been used for the laser stabilization. The result shows that the laser frequency is stabilized upto sub-mega Herz level. Also the hyperfine structure [52S1/2 F = 3 → F′ = 2, 3, 4 52P3/2 85Rb] of the rubidium atom has been measured by using the tilt locking method, which shows the same result as the conventional saturation spectroscopy.

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