scholarly journals Improved Atomic Transition Probabilities for UV and Optical Lines of Hf II and Determination of the Hf Abundance in Two Metal-poor Stars*

2021 ◽  
Vol 254 (1) ◽  
pp. 5
Author(s):  
E. A. Den Hartog ◽  
J. E. Lawler ◽  
I. U. Roederer
Keyword(s):  
Transition Probabilities ◽  
Atomic Transition

scholarly journals Committee 2: Transition Probabilities

1970 ◽  
Vol 14 (1) ◽  
pp. 127-128
Author(s):  
R. H. Garstang
Keyword(s):  
Transition Probabilities ◽  
Conference Report ◽  
Atomic Transition ◽  
National Bureau ◽  
Complete Coverage ◽  
Lifetime Measurements ◽  
Forbidden Transition ◽  
Beam Foil ◽  
Supply Information

A very great deal of work has been done during the last three years on the determination of atomic transition probabilities, and complete coverage here is impossible. Wiese and his staff at the National Bureau of Standards, Washington, have continued to collect all numerical results, and they can supply information as to what is available for any particular atom. They have published (1) a critical compilation of atomic transition probabilities for the atoms sodium to calcium (inclusive) in essentially the same way as an earlier compilation covered hydrogen to neon. At the time of writing a complete new bibliography is also in preparation (2), which will be published as NBS Special Publication 320 and which is complete up to June 1969. Review articles published include that of Layzer and Garstang (3) on theoretical allowed and forbidden transition probabilities, and the two volume conference report (4) covers beam foil spectroscopy (including lifetime measurements) in some detail. A fairly complete review of forbidden line transition probabilities was given by Garstang (5), where references to many original papers may be found. In the following we shall confine ourselves to mentioning a few areas of particular interest; detailed references can be traced through the bibliographies, reviews and abstracting journals.

Determination of absolute atomic transition probabilities using time resolved optical pumping

1977 ◽  
Vol 21 (1) ◽  
pp. 116-120 ◽  
Author(s):  
L.R. Carlson ◽  
S.A. Johnson ◽  
E.F. Worden ◽  
C.A. May ◽  
R.W. Solarz ◽  
...  
Keyword(s):  
Optical Pumping ◽  
Transition Probabilities ◽  
Atomic Transition ◽  
Time Resolved

scholarly journals Spectroscopic Studies of Er3+-Yb3+ Codoped Multicomposition Tellurite Oxide Glass

2014 ◽  
Vol 895 ◽  
pp. 323-333 ◽  
Author(s):  
Sharudin Omar Baki ◽  
L.S. Tan ◽  
C.S. Kan ◽  
Halimah Mohamed Kamari ◽  
A.S.M. Noor ◽  
...  
Keyword(s):  
Room Temperature ◽  
Near Infrared ◽  
Transition Probabilities ◽  
Branching Ratios ◽  
Spectroscopic Studies ◽  
Oxide Glass ◽  
Near Infrared Spectra ◽  
Intensity Parameters ◽  
Measured Absorption

Multicomposition of Er3+-Yb3+codoped tellurite oxide, TeO2-ZnO-PbO-TiO2-Na2O glass has been investigated. Detailed spectroscopic study of the Judd-Ofelt analysis has been performed from the measured absorption spectrum in order to obtain the intensity parameters Ωt(t=2, 4, 6). The calculated Ωtvalues were then utilized in the determination of transition probabilities, radiative lifetimes and branching ratios of the Er3+transitions between theJ(upper)-J(lower) manifolds. Both visible upconversion and near-infrared spectra were characterized under the 980 nm laser diode excitation at room temperature.

Atomic transition probabilities of Ce I from Fourier transform spectra

2010 ◽  
Vol 43 (8) ◽  
pp. 085701 ◽  
Author(s):  
J E Lawler ◽  
J Chisholm ◽  
D E Nitz ◽  
M P Wood ◽  
J Sobeck ◽  
...  
Keyword(s):  
Fourier Transform ◽  
Transition Probabilities ◽  
Atomic Transition ◽  
Fourier Transform Spectra

Atomic transition probabilities of Nd I

2011 ◽  
Vol 44 (23) ◽  
pp. 235003 ◽  
Author(s):  
M H Stockett ◽  
M P Wood ◽  
E A Den Hartog ◽  
J E Lawler
Keyword(s):  
Transition Probabilities ◽  
Atomic Transition

Determination of transition probabilities for weak lines of magnesium and tin

1967 ◽  
Vol 7 (3) ◽  
pp. 309-311 ◽  
Author(s):  
G. V. Ovechkin ◽  
Sh. Bakhtovarshoev ◽  
L. E. Sandrigailo
Keyword(s):  
Transition Probabilities
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