Mh. Chiu et al., REFRACTIVE-INDEX MEASUREMENT BASED ON THE EFFECTS OF TOTAL INTERNAL-REFLECTION AND THE USES OF HETERODYNE INTERFEROMETRY, Applied optics, 36(13), 1997, pp. 2936-2939
A new method for measuring the refractive index is presented, First, t
he phase difference between s and p polarizations that is due to the t
otal internal reflection is measured by heterodyne interferometry. The
n, substituting this phase difference into the Fresnel equations, we c
an obtain the refractive index of the test medium. (C) 1997 Optical So
ciety of America.