Measured Absolute Cross Sections for K* + Rb Collisional Excitation Transfer

1969 ◽  
Vol 181 (1) ◽  
pp. 214-229 ◽  
Author(s):  
Michael H. Ornstein ◽  
Richard N. Zare
Keyword(s):  
Cross Sections ◽  
Excitation Transfer ◽  
Collisional Excitation

Sensitized fluorescence in thallium induced in collisions with Hg(63P1) atoms

1978 ◽  
Vol 56 (7) ◽  
pp. 891-896 ◽  
Author(s):  
M. K. Wade ◽  
M. Czajkowski ◽  
L. Krause
Keyword(s):  
Cross Sections ◽  
Ground State ◽  
Excitation Transfer ◽  
Resonance Radiation ◽  
Resonance Fluorescence ◽  
Collisional Excitation ◽  
Vapor Mixture ◽  
Sensitized Fluorescence ◽  
Intensity Measurements ◽  
Metallic Vapor

The transfer of excitation from excited mercury atoms to ground-state thallium atoms was investigated using techniques of sensitized fluorescence. A Hg–Tl vapor mixture contained in a quartz cell was irradiated with Hg 2537 Å resonance radiation which caused the mercury atoms to become excited to the 63P1, state. Subsequent collisions between the Hg(63P1) and Tl(62P1/2) atoms resulted in the population of the 82S1/2, 62D, and 72S1/2 thallium states, whose decay gave rise to sensitized fluorescence of wavelengths 3231, 3520, 3776, and 5352 Å. Intensity measurements on the sensitized fluorescence and on the Hg 2537 Å resonance fluorescence, observed at right angles to the direction of excitation, yielded cross sections of 3.0, 0.3, and 0.05 Å2 for collisional excitation transfer from Hg(63P1) to the 82S1/2, 62D, and 72S1/2 states in thallium, respectively. The results are fully consistent with previously determined cross sections for excitation transfer in other binary metallic vapor systems.

Erratum: “Collisional Excitation Transfer between Atoms in the Resonant Process”

1964 ◽  
Vol 19 (8) ◽  
pp. 1504-1504 ◽  
Author(s):  
Masatake Mori ◽  
Tsutomu Watanabe ◽  
Kanji Katsuura
Keyword(s):  
Excitation Transfer ◽  
Collisional Excitation

Multipole cross sections for collisional excitation of highly charged ions by isotropic electrons

2019 ◽  
Vol 49 (1) ◽  
pp. 65-68
Author(s):  
Mohamed Sadek Bentotoche ◽  
Mokhtar Kemal Inal ◽  
Mustapha Benmouna
Keyword(s):  
Cross Sections ◽  
Highly Charged Ions ◽  
Collisional Excitation ◽  
Charged Ions

Modifying excitation transfer cross sections with an ac Stark effect

1988 ◽  
Vol 13 (5) ◽  
pp. 354 ◽  
Author(s):  
J. Coutts ◽  
J. Cooper ◽  
K. Burnett
Keyword(s):  
Cross Sections ◽  
Stark Effect ◽  
Excitation Transfer ◽  
Ac Stark Effect

Temperature dependence of cross sections for 72P1/2 ↔ 72P3/2 excitation transfer and for quenching in cesium, induced in collisions with H2, N2, CH4, and CD4

1982 ◽  
Vol 60 (2) ◽  
pp. 239-244 ◽  
Author(s):  
I. N. Siara ◽  
R. U. Dubois ◽  
L. Krause
Keyword(s):  
Energy Transfer ◽  
Temperature Dependence ◽  
Cross Sections ◽  
Rotational Energy ◽  
Excitation Transfer ◽  
Sensitized Fluorescence ◽  
Temperature Range ◽  
Rotational Energy Transfer ◽  
Order Of Magnitude

The temperature dependence of cross sections for 72P1/2 ↔ 72P3/2 excitation transfer in cesium, as well as the effective quenching of these states, induced in collisions with H2, N2, CH4, and CD4 molecules have been investigated in a series of sensitized fluorescence experiments over a temperature range 390–640 K. The 72P mixing cross sections are of the order of 10−15 cm2 and exceed by at least one order of magnitude similar cross sections for mixing by collisions with Ne, Ar, Kr, and Xe. The large sizes of the mixing cross sections and their variation with temperature are ascribed to a phenomenon of electronic-to-rotational energy transfer.

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