A VUV Mach-Zehnder interferometer has been equipped with CaF2 optics. To test these, the hook method was used to measure the oscillator strength of the 146.9610-nm 1S0-3P01 line of atomic xenon. The result, f = 0.244 ± 0.015, is in agreement with data obtained by other techniques. We conclude, as a result of this work, that application of our Mach-Zehnder interferometer to hook method measurements of oscillator strengths of lines with wavelengths longer than ~150 nm will be routine, but that such measurements below that wavelength limit must await development of more intense VUV continuum sources.
© 1981 Optical Society of America
Peter L. Smith, Gabriel G. Lombardi, Bartley L. Cardon, and W. H. Parkinson, "Vacuum ultraviolet Mach-Zehnder interferometer with CaF2 optics," Appl. Opt. 20, 647-649 (1981)