Results 21 to 30 of about 3,381,508 (304)

Doppler-free approach to optical pumping dynamics in the 6S1/2-5D5/2 electric quadrupole transition of cesium vapor. [PDF]

open access: yesOptics Letters, 2016
The 6S1/2-5D5/2 electric quadrupole transition is investigated in cesium vapor at room temperature via nonlinear Doppler-free 6P-6S-5D three-level spectroscopy.
E. A. Chan   +4 more
semanticscholar   +1 more source

Calculation of quadrupole deformation parameter β2 from reduced transition probability B(E2)↑ for 0+1 → 2+1 transitions at even-even 62-68Zn isotopes [PDF]

open access: yesЯдерна фізика та енергетика, 2021
In this work the excited energy levels, reduced transition probabilities B(E2)↑, intrinsic quadrupole moments, and deformation parameters have been calculated for 62-68Zn isotopes with neutrons number N = 32, 34, 36 and 38. NuSheIIX code has been applied
Fatema Hameed Obeed, Ali Khalaf Hasan
doaj   +1 more source

Plasmonic nanostructures for shrinking structured light to access forbidden transitions

open access: yesNanophotonics, 2022
Plasmonic nanostructures have considerable applicability in light–matter interactions owing to their capacity for strong field confinement and enhancement.
Sakai Kyosuke   +2 more
doaj   +1 more source

High-order correction calculation for survival of Rydberg atoms in intense laser fields

open access: yesResults in Physics, 2021
Using a method based on the Magnus expansion, the survival of Rydberg atoms in intense laser fields is studied. Usually, for atoms in intense laser fields, effects beyond the electric dipole approximation need to be considered.
Jiajia Zha   +5 more
doaj   +1 more source

Monte Carlo Simulation of γ-γ Correlation Functions

open access: yesAtoms, 2020
γ - γ correlation functions are mathematical expressions that describe the angular distribution of cascade γ -rays emitted from an atomic nucleus.
Mohamed Omer, Mahmoud Bakr
doaj   +1 more source

Quadrupole transitions in 20Ne

open access: yesPhysics Letters B, 1978
Abstract Untruncated shell model calculations in the 1s-0d shell using Chung-Wildenthal effective interactions have been performed for 20 Ne and the electron scattering form factors for elastic scattering and for the excitation of 2 1 + , 2 1 + and 2 3 + states have been examined.
R.P. Singhal   +6 more
openaire   +1 more source

Long-Lived Coherence on a μHz Scale Optical Magnetic Quadrupole Transition. [PDF]

open access: yesPhysical Review Letters
We report on the coherent excitation of the ultranarrow ^{1}S_{0}-^{3}P_{2} magnetic quadrupole transition in ^{88}Sr. By confining atoms in a state insensitive optical lattice, we achieve excitation fractions of 97(1)% and observe linewidths as narrow ...
V. Klüsener   +9 more
semanticscholar   +1 more source

The study of isomeric state for even-even isotones with N=4 [PDF]

open access: yesمجلة التربية والعلم, 2018
In this paper we study of the characteristics of  the  isomeric state of  ( ) isotones with  and the reduced electric quadrupole transition probability in unit of  Weisskopf  and calculate these values  in unit of  , depending on these values we ...
Emad Ahmed, Zeena Salih, Motasem Yousef
doaj   +1 more source

Precise determination of the quadrupole transition matrix element of +40 Ca via branching-fraction and lifetime measurements [PDF]

open access: yes, 2016
We report the first experimental determination of the $4s \ ^{2}S_{1/2} $ $\leftrightarrow $ $3d \ ^{2}D_{5/2}$ quadrupole transition matrix element in $^{40}$Ca$^+$ by measuring the branching ratio of the $3d \ ^{2}D_{5/2} $ state decaying into the ...
H. Shao   +5 more
semanticscholar   +1 more source

Electric quadrupole transitions in Ni XVIII [PDF]

open access: yesAstronomy and Astrophysics Supplement Series, 2000
Relativistic Quantum Defect Orbital (RQDO) calculations have been performed in the LS coupling scheme on electric quadrupole (E2) transitions between levels belonging to several astrophysically important con- gurations of Ni XVIII. A number of line strengths are reported and compared with the ones found in the litera- ture.
E. Charro   +2 more
openaire   +1 more source

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