Radiative rate of the 6 2<i>D</i>3/2 state of atomic bismuth

Patel, Dinshaw J.; Pritt, A. T.; Coombe, R. D.

doi:10.1063/1.443007

Cited by 5 publications

(2 citation statements)

References 7 publications

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“…Absolute oscillator strengths were recently reported for transitions connecting the ground states with metastable levels in Hg199 (Wexler et a1 1980) and Bi (Patel et al 1982). In both cases, the absorption line profiles were scanned with tunable laser radiation.…”

Section: Absorption Methods Yielding Absolute Oscillator Strengthsmentioning

confidence: 89%

The measurement of oscillator strengths

1986

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The methods and techniques currently used to measure oscillator strengths (or, equivalently, f-values and transition probabilities) are reviewed. Both linear and non-linear optical methods are discussed.Following references to critical compilations and bibliographies, the definitions concerning the interaction between an electromagnetic radiation field and a medium (consisting of free atoms, for example) are given: linear and non-linear susceptibilities and radiative constants are introduced. Next, the basic principles of linear methods (dispersion, absorption and emission) and non-linear methods (interaction effects near and off resonance) are explained.Measurement techniques are described in detail. The subjects covered are as follows: introductory remarks on equilibrium, number densities, and relative and absolute oscillator-strength scales; methods based on anomalous dispersion (hook and fringe-shift methods, further interferometric techniques and magneto-rotation); methods based on emission and absorption (the curve of growth, absorption methods yielding absolute and relative $values, and emission methods). We introduce the designation 'Ladenburg method' for a combined method that permits oscillator strengths to be determined without assumptions on plasma state. Subsequently, we discuss the methods based on non-linear interactions (phase-matching in non-linear wave mixing, stimulated Raman scattering, dynamic Stark effect) as well as further methods involving lasers.We emphasise the progress toward more accurate measurements in quantitative spectroscopy and the concomitant new applications. We also point out areas where technological advances concerning light sources, spectrometers and standards, open new opportunities for further, more refined studies in experimental and theoretical atomic and molecular physics.

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Section: Absorption Methods Yielding Absolute Oscillator Strengthsmentioning

confidence: 89%

The measurement of oscillator strengths

1986

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“…The HFR energies obtained in [9] appear in very good agreement with the observed structure, but the agreement with the experimental data concerning multipole transition rates is not that satisfactory. For instance, the experimental transition probability A( 2 D 3/2 − 4 S 3/2 ) = 22.5 ± 1.4 s −1 [10] is almost 50% lower than the theoretical result.…”

Section: Introductionmentioning

confidence: 61%

The E2 admixtures in mixed forbidden lines of Bi I and Pb I

Wąsowicz

2007

Phys. Scr.

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The hyperfine structures (hfs) of mixed (M1+E2) multipole lines 461.5 nm (6p 3 2 P 1/2 → 6p 3 4 S 3/2 ) and 647.6 nm(6p 3 2 D 5/2 → 6p 3 4 S 3/2 ) of Bi I and 733.2 nm (6p 2 1 D 2 → 6p 2 3 P 1 ) of Pb I are presented. A computer modelling technique was used to obtain the predicted hfs contours of these lines. By varying the free parameters describing the line shape and the electric-quadrupole admixture D E2 the calculated profiles were fitted to the recorded spectra. The D E2 values obtained from the best fits were found to be (7.3 ± 0.9), (17.6 ± 1.2) and (5.0 ± 0.6)% for the 461.5, 647.6 and 733.2 nm lines, respectively. These results are compared with other experiments and recent theories.

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The E2 admixtures in mixed multipole lines 459.7 and 564.0 nm of Bi IThis paper was presented at the International Conference on Precision Physics of Simple Atomic Systems, held at University of Windsor, Windsor, Ontario, Canada on 21–26 July 2008.

Werbowy

Kwela

2009

Can. J. Phys.

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Studies of the M1-E2 interference effect in the Zeeman spectra of forbidden lines 459.7 and 564.0 nm of Bi I are reported. By the use of computer modelling techniques, the simulated contours were fitted to the recorded spectra to determine the electric-quadrupole admixture in forbidden lines. The E2 admixtures found are: (3.49 ± 0.35)% and (37.1 ± 1.8)% for 459.7 and 564.0 nm lines, respectively. Our results are compared with recent theories and other experiments.

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Radiative rate of the 6 2D3/2 state of atomic bismuth

Abstract: Articles you may be interested inA pulsed source for Xe(6s[3/2]1) and Xe(6s′[1/2]1) resonance state atoms using twophoton driven amplified spontaneous emission from the Xe(6p) and Xe(6p′) states Rotational analyses and angular momentum assignments of [2Π3/2]4d Rydberg states of Br2

Cited by 5 publications

References 7 publications

The measurement of oscillator strengths

The measurement of oscillator strengths

The E2 admixtures in mixed forbidden lines of Bi I and Pb I

The E2 admixtures in mixed multipole lines 459.7 and 564.0 nm of Bi IThis paper was presented at the International Conference on Precision Physics of Simple Atomic Systems, held at University of Windsor, Windsor, Ontario, Canada on 21–26 July 2008.

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