Lifetimes of some triplet levels of neutral strontium

1976 ◽  
Vol 54 (7) ◽  
pp. 800-804 ◽  
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.

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

1983 ◽  
Vol 78 (6) ◽  
pp. 3476-3482 ◽  
Author(s):  
S. T. Sandholm ◽  
R. H. Schwendeman
Keyword(s):  
Line Shape ◽  
Zero Field ◽  
Level Crossing ◽  
Methyl Fluoride ◽  
Field Level

Zero-Field Level Crossing in the Helium Atom

1972 ◽  
Vol 50 (2) ◽  
pp. 116-118 ◽  
Author(s):  
C. W. T. Chien ◽  
R. E. Bardsley ◽  
F. W. Dalby
Keyword(s):  
Magnetic Field ◽  
Field Strength ◽  
Magnetic Field Strength ◽  
Helium Atom ◽  
Cross Sections ◽  
Zero Field ◽  
Level Crossing ◽  
Field Level ◽  
Collision Cross Sections ◽  
The Magnetic Field

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.

Polarisation properties of the stimulated zero-field level crossing

1988 ◽  
Vol 38 (4) ◽  
pp. 550-553 ◽  
Author(s):  
P Jungner ◽  
B Ståhlberg ◽  
M Lindberg
Keyword(s):  
Zero Field ◽  
Level Crossing ◽  
Field Level

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

1974 ◽  
Vol 61 (4) ◽  
pp. 1475-1479 ◽  
Author(s):  
Stuart J. Silvers ◽  
Chi‐Lian Chiu
Keyword(s):  
Zero Field ◽  
Level Crossing ◽  
Field Level

Lifetime of the 5p2P3/2 Level of Ionized Strontium

1974 ◽  
Vol 52 (15) ◽  
pp. 1438-1442 ◽  
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.

Lifetime of the 5p2P1/2 Level of Ionized Strontium

1974 ◽  
Vol 52 (17) ◽  
pp. 1666-1668 ◽  
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.

Zero‐field level crossing and optical radio‐frequency double resonance studies of the A 2Σ+ states of OH and OD

1973 ◽  
Vol 58 (10) ◽  
pp. 4304-4318 ◽  
Author(s):  
K. R. German ◽  
T. H. Bergeman ◽  
E. M. Weinstock ◽  
R. N. Zare
Keyword(s):  
Radio Frequency ◽  
Double Resonance ◽  
Zero Field ◽  
Level Crossing ◽  
Field Level
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