The line shape of a zero‐field level‐crossing effect in methyl fluoride

Zero-field level-crossing techniques have been used to measure some upper-state lifetimes of the helium atom. The half-widths of curves obtained by plotting the polarization against the magnetic field strength for the n1D–21D transitions yielded lifetimes of 2.03 × 10−8 s for the 31D state, 3.36 × 10−8 s for the 41D state, and 7.44 × 10−8 s for the 51D state. Collision cross sections for these 1D levels were also determined.

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Polarisation properties of the stimulated zero-field level crossing

Physica Scripta ◽

10.1088/0031-8949/38/4/007 ◽

1988 ◽

Vol 38 (4) ◽

pp. 550-553 ◽

Cited By ~ 5

Author(s):

P Jungner ◽

B Ståhlberg ◽

M Lindberg

Keyword(s):

Zero Field ◽

Level Crossing ◽

Field Level

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Lifetimes of some triplet levels of neutral strontium

Canadian Journal of Physics ◽

10.1139/p76-094 ◽

1976 ◽

Vol 54 (7) ◽

pp. 800-804 ◽

Cited By ~ 6

Author(s):

F. M. Kelly ◽

M. S. Mathur

Keyword(s):

Oscillator Strengths ◽

Zero Field ◽

Level Crossing ◽

Field Level

The zero-field level-crossing technique has been used to determine the lifetimes of the 5p2 3P2,1 and 4d2 3P levels of neutral strontium. The results are compared with those given in the literature and calculated from the available values of oscillator strengths. We have determined the following lifetimes: τ(5p2 3P2) = 6.39 ± 0.20 ns; τ(5p2 3P1) = 6.91 ± 0.20 ns; τ(4d2 3P) = 6.74 ± 0.15 ns.

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Fluorescence and zero‐field level crossing spectroscopy of theC2Σ+state of NS

The Journal of Chemical Physics ◽

10.1063/1.1682075 ◽

1974 ◽

Vol 61 (4) ◽

pp. 1475-1479 ◽

Cited By ~ 11

Author(s):

Stuart J. Silvers ◽

Chi‐Lian Chiu

Keyword(s):

Zero Field ◽

Level Crossing ◽

Field Level

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Lifetime of the 5p2P3/2 Level of Ionized Strontium

Canadian Journal of Physics ◽

10.1139/p74-191 ◽

1974 ◽

Vol 52 (15) ◽

pp. 1438-1442 ◽

Cited By ~ 28

Author(s):

F. M. Kelly ◽

T. K. Koh ◽

M. S. Mathur

Keyword(s):

Cross Section ◽

Ground State ◽

Optical Excitation ◽

Zero Field ◽

Neutral Atoms ◽

Level Crossing ◽

Field Level ◽

Hanle Effect ◽

Effect Technique

The lifetime of the 5p2P3/2 level of Sr+ has been measured using the zero field level crossing (Hanle effect) technique with optical excitation from the ground state of the ion. The ions are produced in a discharge at the mouth of a furnace used to produce a strontium beam. No foreign gas is used to carry the discharge. An alignment depolarization cross section is obtained for collisions between Sr+ ions and Sr neutral atoms. The results are compared with the published ones.

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Optical double resonance and zero field level crossing spectroscopy applied to the 5p 3 6s 5 S 2 level in the Te-I spectrum

Zeitschrift für Physik A Hadrons and Nuclei ◽

10.1007/bf01402494 ◽

1971 ◽

Vol 247 (3) ◽

pp. 238-251 ◽

Cited By ~ 9

Author(s):

S. Garpman ◽

G. Lidö ◽

S. Rydberg ◽

S. Svanberg

Keyword(s):

Double Resonance ◽

Zero Field ◽

Level Crossing ◽

Field Level ◽

Optical Double Resonance

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Lifetime of the 5p2P1/2 Level of Ionized Strontium

Canadian Journal of Physics ◽

10.1139/p74-218 ◽

1974 ◽

Vol 52 (17) ◽

pp. 1666-1668 ◽

Cited By ~ 3

Author(s):

F. M. Kelly ◽

T. K. Koh ◽

M. S. Mathur

Keyword(s):

Oscillator Strength ◽

Ground State ◽

Polarized Light ◽

Optical Excitation ◽

Zero Field ◽

Level Crossing ◽

Circularly Polarized Light ◽

Circularly Polarized ◽

Field Level ◽

Hanle Effect

The lifetime of the 5p2P1/2 level of Sr+ has been measured using the Hanle effect, or zero field level crossing technique, with optical excitation from the ground state of the ion. Circularly polarized light is used in the excitation and analysis. The ions are produced in a discharge at the mouth of the furnace used to produce a beam of strontium atoms. No foreign gas is used to carry the discharge. The oscillator strength of the 4215 Å, 5s2S1/2–5p2P1/2 transition is discussed.

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