Gagné J M
Laboratoire d'Optique et de SpectroscopieEcole Polytechnique, Montréal, Qué.
Appl Opt. 1968 Apr 1;7(4):581-4. doi: 10.1364/AO.7.000581.
This paper describes a high resolution photoelectric Fabry-Perot spectrometer for measuring optical line shifts, hyperfine structure intensities, and spectral line widths. The measurements reported were made within an accuracy of 1%. Details of the instrument construction are given.