Atomic-Beam Study of the Stark Effect in the Cesium and Rubidium<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mi>D</mml:mi></mml:math>Lines

Marrus, Richard; McColm, Douglas W.; Yellin, Joseph

doi:10.1103/physrev.147.55

Cited by 50 publications

(12 citation statements)

References 12 publications

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“…For Rb The scalar polarizability differences observed for rubidium and potassium are in good agreement, respectively, with the previously measured values [6,7] of 72(16)X 10 cm and 50(12)X 10 cm . Our new results are more than 1000 times more precise than these earlier values.…”

supporting

confidence: 89%

Precise measurement of the Stark shift of the rubidium and potassiumD1 lines

Krause

Hunter

1994

Phys. Rev. A

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The dc Stark shift of the D1 lines of rubidium and potassium are observed using a pair of cavitystabilized diode lasers locked to resonance signals. The heterodyne signal from the two lasers and the optical measurements of the electrode spacing yield high-precision results. The observed scalar shifts are found to be 61.153(8) kHz (kV/cm) ' for rubidium and 39.400(5) kHz (kV/cm) for potassium.These results represent more than three orders of magnitude improvement in our knowledge of these Stark shifts.PACS number(s): 32.60.+i, 35.10.Di, 35.80.+s

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supporting

confidence: 89%

Precise measurement of the Stark shift of the rubidium and potassiumD1 lines

Krause

Hunter

1994

Phys. Rev. A

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“…More modern treatments of this problem have shown that this polarizability has both scalar and tensor contributions (the latter vanishing for J = 1 2 levels) [85], [87], [88]. Although the tensor contribution to the dipole polarizability is often significant for the alkali metals [89]- [93], it was ignored in [47] and will not be considered further here. Calculated values of α (4) pol are listed in Tab.…”

Section: A Heating Mechanismmentioning

confidence: 99%

Spectroscopic Studies of Cold Atomic Hydrogen and Deuterium Produced in a Tokamak Edge Plasma

Hey¹,

Chu²,

Hintz

2000

Contrib. Plasma Phys.

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Spectroscopic measurements of low‐n Balmer line profiles of atomic hydrogen and deuterium, emitted within the edge region of the TEXTOR‐94 tokamak plasma, have revealed the existence of a class of cold excited atoms, whose probable origin has been ascribed to electron impact‐induced molecular dissociation. Associated with these cold radiators are a second group of ‘lukewarm’ atoms, i.e. atoms heated by elastic collisions with hot protons (deuterons) diffusing outward from the plasma interior, as well as a third group of ‘hot’ atoms, produced in the corresponding excited states directly by charge‐exchange recombination between protons (deuterons) and boundary region atoms. A mechanism recently proposed to explain the heating process quantitatively, in terms of elastic atom‐ion collisions, is applied and discussed in this paper.

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“…Recently we have begun a program for checking the applicability of the Bates and Daamgard oscillator strengths to the Stark effect of the first excited p level of the alkalis by studying the Stark effect in the D lines of cesium and rubidium. 2 In this paper we report the extension of these measurements to the 4p level of potassium.…”

mentioning

confidence: 96%

Electric Polarizabilities of the4p2Level of Potassium

Marrus

Yellin

1969

Phys. Rev.

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The atomic-beam technique has been used to study the Stark effect in the 4p level of potassium. The results, expressed in terms of three polarizabilities, are found to be in good agreement with the Bates and Daamgard calculation of oscillator strengths.The study of the Stark effect of atomic levels is important in that the Stark shifts are directly determined by the oscillator strengths connecting the level under study to near-lying levels of opposite parity. Hence the measurement of these shifts serves as a direct test of theoretical calculations of oscillator strengths. Perhaps the simplest of the available theoretical methods for predicting oscillator strengths is the Coulomb approximation of Bates and Daamgard, 1 which is easily made to yield numerical values. Recently we have begun a program for checking the applicability of the Bates and Daamgard oscillator strengths to the Stark effect of the first excited p level of the alkalis by studying the Stark effect in the D lines of cesium and rubidium. 2 In this paper we report the extension of these measurements to the 4p level of potassium.The basic method employed is the atomic-beam method for studying the Stark effect that was used in cesium and rubidium. 2 ? 3 However, because of the small hyperfine structure (hf s) of the potassium ground state, it is necessary to employ an absorption cell to obtain narrow absorption lines in the broad lamp emission line. 4 This modification can be understood with reference to Fig.

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Atomic-Beam Study of the Stark Effect in the Cesium and RubidiumDLines

Cited by 50 publications

References 12 publications

Precise measurement of the Stark shift of the rubidium and potassiumD1 lines

Precise measurement of the Stark shift of the rubidium and potassiumD1 lines

Spectroscopic Studies of Cold Atomic Hydrogen and Deuterium Produced in a Tokamak Edge Plasma

Electric Polarizabilities of the4p2Level of Potassium

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