Atomic Spectroscopy - A Compendium of Basic Ideas, Notation, Data, and Formulas

Version History

W. C. Martin and W. L. Wiese
National Institute of Standards and Technology
Gaithersburg, Maryland 20899

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1. Introduction
2. Frequency, Wavenumber, Wavelength
3. Atomic States, Shells, and Configurations
4. Hydrogen and Hydrogen-like Ions
5. Alkalis and Alkali-like Spectra
6. Helium and Helium-like Ions; LS Coupling
7. Hierarchy of Atomic Structure in LS Coupling
8. Allowed Terms of Levels for Equivalent Electrons 
   • LS Coupling
   • jj Coupling
9. Notations for Different Coupling Schemes
   • LS Coupling (Russell-Saunders Coupling)
   • jj Coupling of Equivalent Electrons
   • J₁ j or J₁ J₂ Coupling
   • J₁ l or J₁ L₂ Coupling (J₁ K Coupling)
   • LS₁ Coupling (LK Coupling)
   • Coupling Schemes and Term Symbols
10. Eigenvector Composition of Levels
11. Ground Levels and Ionization Energies for the Neutral Atoms
12. Zeeman Effect
13. Term Series, Quantum Defects, and Spectral-line Series
14. Sequences
    • Isoelectronic Sequence
    • Isoionic, Isonuclear, and Homologous Sequences
15. Spectral Wavelength Ranges, Dispersion of Air
16. Wavelength (Frequency) Standards
17. Spectral Lines: Selection Rules, Intensities, Transition Probabilities, Values, and Line Strengths 
    • Emission Intensities (Transition Probabilities)
    • Absorption f values
    • Line Strengths
    • Relationships between A, f, and S
    • Relationships between Line and Multiplet Values
    • Relative Strengths for Lines of Multiplets in LS Coupling
18. Atomic Lifetimes
19. Regularities and Scaling
    • Transitions in Hydrogenic (One-Electron) Species
    • Systematic Trends and Regularities in Atoms and Ions with Two or More Electrons
20. Spectral Line Shapes, Widths, and Shifts
    • Doppler Broadening
    • Pressure Broadening
21. Spectral Continuum Radiation
    • Hydrogenic Species
    • Many-Electron Systems
22. Sources of Spectroscopic Data
23. References