I describe here a new simple method for measuring the absolute refractive index of liquid water as a function of temperature at a wavelength of 1.064 μm with a Michelson interferometer. The mirror of the measuring arm is located in a water cell and displaced by a well-known distance. Compensation for a change in the optical path length in the reference arm of the interferometer is not necessary.
© 1996 Optical Society of America
Original Manuscript: July 14, 1995
Revised Manuscript: October 23, 1995
Published: April 1, 1996
Bernold Richerzhagen, "Interferometer for measuring the absolute refractive index of liquid water as a function of temperature at 1.064 μm," Appl. Opt. 35, 1650-1653 (1996)