scholarly journals Laser spectroscopy of the 5P3/2 → 6Pj (j = 1/2 and 3/2) electric dipole forbidden transitions in atomic rubidium

2018 ◽  
Author(s):  
F. Ponciano-Ojeda ◽  
S. Hernández-Gómez ◽  
C. Mojica-Casique ◽  
L. M. Hoyos ◽  
J. Flores-Mijangos ◽  
...  
Keyword(s):  
Laser Spectroscopy ◽  
Electric Dipole ◽  
Forbidden Transitions

Electric-dipole forbidden transitions for probing atomic state preparation: the case of the Autler-Townes effect

2021 ◽  
Author(s):  
Fernando Ramirez-Martinez ◽  
Francisco Sebastian Ponciano Ojeda ◽  
Santiago Hernandez-Gomez ◽  
Alberto Del Angel Medina ◽  
Cristian Adrián Moijca-Casique ◽  
...  
Keyword(s):  
Electric Dipole ◽  
Atomic State ◽  
State Preparation ◽  
Forbidden Transitions

Electric-dipole forbidden transitions in C60: oscillator strengths induced by the spin–orbit coupling

2002 ◽  
Vol 589-590 ◽  
pp. 139-145 ◽  
Author(s):  
Toshiki Hara ◽  
Yasushi Nomura ◽  
Susumu Narita ◽  
Hirotoshi Ito ◽  
Tai-ichi Shibuya
Keyword(s):  
Electric Dipole ◽  
Orbit Coupling ◽  
Oscillator Strengths ◽  
Spin Orbit Coupling ◽  
Spin Orbit ◽  
Forbidden Transitions

scholarly journals A Laboratory Astrophysics Problem: The Lifetime of Very Long-Lived Levels in Low-Charge Ions

Atoms ◽  
2020 ◽  
Vol 8 (2) ◽  
pp. 21 ◽  
Author(s):  
Elmar Träbert
Keyword(s):  
Electric Dipole ◽  
Experimental Approach ◽  
Laboratory Astrophysics ◽  
Emission Lines ◽  
Transition Rates ◽  
Line Intensities ◽  
Forbidden Transitions ◽  
Singly Charged ◽  
Low Charge ◽  
Charged Ions

Emission lines of singly charged ions populate many astrophysical spectra. However, the interpretation of the line intensities (usually line ratios) often depends on the transition rates of the decays of very long-lived low-lying levels. For example, the line ratio of two electric-dipole forbidden transitions in the 3s 2 3p 3 ground configuration of singly ionized sulfur (ion S + , spectrum S II) has been interpreted in terms of a density diagnostic for planetary nebulae, i.e., for densities in the order of 10 4 cm − 3 . The predicted lifetimes of the 2 D 3 / 2 , 5 / 2 o levels are in the order of one hour. Modeling indicates that a 10% uncertainty of the lifetime determination in this case corresponds to a 50% uncertainty of the density diagnostic. The available theoretical lifetime predictions scatter by much more than 10%. Considerations about an experimental approach are presented with the goal of instigating a measurement of the actual level lifetimes.

Calculation of Wavelengths, Transition Probabilities and Oscillator Strengths for E1 and M1 Transitions in Cu-Like Au Ion

2015 ◽  
Vol 723 ◽  
pp. 799-803
Author(s):  
Min Xu
Keyword(s):  
Excited States ◽  
Magnetic Dipole ◽  
Configuration Interaction ◽  
Electric Dipole ◽  
Transition Probabilities ◽  
Energy Levels ◽  
Oscillator Strengths ◽  
Forbidden Transitions ◽  
Calculation Results ◽  
Good Agreement

Wavelengths, transition probabilities and oscillator strengths have been calculated for electric dipole (E1) transitions and magnetic dipole (M1) transitions in Cu-like Au ion. These values are obtained in the configuration interaction (CI) and using the fully relativistic multiconfiguration Dirac-Fock (MCDF) method including quantum electrodynamical (QED) effect and Breit correction. Obtained energy levels of some excited states in Cu-like Au ion from the method are generally in good agreement with valuable theoretical and experimental results. The calculation results indicate that for high-Z highly ionized atom, some forbidden transitions are very important.

scholarly journals Measurement of Electric-Dipole Moment by Polarization Laser Spectroscopy

1997 ◽  
Vol 34 (4) ◽  
pp. 360-366 ◽  
Author(s):  
Akira KUWAKO ◽  
Koichi NITTOH ◽  
Tadashi IKEHARA ◽  
Tadashi YOSHIDA ◽  
Itaru YOGUCHI ◽  
...  
Keyword(s):  
Dipole Moment ◽  
Laser Spectroscopy ◽  
Electric Dipole Moment ◽  
Electric Dipole

Publisher’s Note: Laser Spectroscopy on Forbidden Transitions in Trapped Highly ChargedAr13+Ions [Phys. Rev. Lett.107, 143002 (2011)]

2012 ◽  
Vol 108 (7) ◽  
Author(s):  
V. Mäckel ◽  
R. Klawitter ◽  
G. Brenner ◽  
J. R. Crespo Lopez-Urrutia ◽  
J. Ullrich
Keyword(s):  
Laser Spectroscopy ◽  
Forbidden Transitions
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