Atomic Physics

The European Physical Journal D - Atomic, Molecular, Optical and Plasma Physics

, Volume 40, Issue 1, pp 81-89

First online:

Hyperfine structure and isotope shifts in near-infrared transitions of atomic nitrogen

  • R. M. JennerichAffiliated withDepartment of Physics and Astronomy
  • , A. N. KeiserAffiliated withDepartment of Physics and Astronomy
  • , D. A. TateAffiliated withDepartment of Physics and Astronomy Email author 

Rent the article at a discount

Rent now

* Final gross prices may vary according to local VAT.

Get Access


We have obtained Doppler-free spectra of transitions in the \({2p^2(^3{\rm P}) \ 3s\ {}^4{\rm P}}\) → 2p2(3P) \({3p\ {}^4{\rm P}^{\circ}}\) and \({2p^2(^3{\rm P}) \ 3s\ {}^4{\rm P}}\)\({2p^2(^3{\rm P}) \ 3p\ {}^4{\rm D}^{\circ}}\) multiplets of atomic nitrogen using saturated absorption spectroscopy. These multiplets consist of respectively of seven and eight transitions, and have center of gravity wavelengths of 821 nm and 869 nm. Values for the hyperfine structure coupling constants of all the upper and lower states for these multiplets were obtained for both 14N and 15N. Isotope shifts of three transitions in each multiplet were also measured, and a significant J-dependence to the shifts was observed.


32.10.Fn Fine and hyperfine structure 32.30.Jc Visible and ultraviolet spectra