Abstract

A critical angle method is described for determining refractive indexes of moderately absorbing liquids (k < 0.03). It is pointed out that when the sample is absorbing the value of the critical angle depends upon the extinction coefficient as well as the refractive index. Dispersion data are given for weak infrared bands of CHCl₃ and CS₂.

© 1959 Optical Society of America

Infrared Dispersion of Liquids by Critical Angle Refractometry

Joseph H. Jaffe and Uri Oppenheim
J. Opt. Soc. Am. 47(9) 782-784 (1957)

Shielding Errors in Critical Angle Refractometry

J. W. Forrest
J. Opt. Soc. Am. 46(8) 657-660 (1956)

Measurement of the Complex Index of Refraction of Liquids below 5-mm Wavelength*

Charles Pine, William G. Zoellner, and John H. Rohrbaugh
J. Opt. Soc. Am. 49(12) 1202-1208 (1959)

Visible and Ultraviolet Absorption Properties of Uranium Dioxide Films*

R. J. Ackermann, R. J. Thorn, and G. H. Winslow
J. Opt. Soc. Am. 49(11) 1107-1111 (1959)

Properties of All-Dielectric Interference Filters. II. Filters in Parallel Beams of Light Incident Obliquely and in Convergent Beams

P. H. Lissberger and W. L. Wilcock
J. Opt. Soc. Am. 49(2) 126-130 (1959)