The ordinary and extraordinary refractive indices of rutile (TiO2) hav
e been measured as a function of temperature and wavelength within the
ranges 30-160 degrees C and 454-1330 nm, respectively, by using a pri
sm coupling reflectivity setup. The measurements have been done with r
egard to the accurately known indices of a congruent LiNbO3 substrate.
The index values are given with the same accuracy as that of the subs
trate taken as reference, i.e., +/-0.001 at room temperature and +/-0.
003 at 160 degrees C. The room temperature values are coincident with
those previously published by other workers. Sellmeier-like equations
which include wavelength and temperature as variables within the studi
ed ranges are given far both indices. (C) 1997 American Institute of P
hysics.