Abstract

The difference between the index of refraction for green mercury light and for 7 other mercury emission wavelengths from 15 300 A to 3651 A has been measured using a Twyman-Green interferometer as a refractometer. A photoelectric method was used for the infrared determination. A method depending upon photography of interference fringes which were caused to appear crossing the lines in the mercury spectrum was used for the visible and ultraviolet measurements. The mean observed deviation of the measurements of (μ − 1) from the predictions of the Edlén formula was 1 part in 10⁵.

© 1958 Optical Society of America

Refractivity of Air in the Near Infrared

Donald J. Schlueter and Edson R. Peck
J. Opt. Soc. Am. 48(5) 313-315 (1958)

Analysis of Interference Fringes from a Flame*

Boyd W. Harned and N. Ginsburg
J. Opt. Soc. Am. 48(3) 178-183 (1958)

Preliminary Measurements of Some Wavelengths of Krypton 86 and Mercury 198 Lines

K. M. Baird and D. S. Smith
J. Opt. Soc. Am. 48(5) 300-301 (1958)

Shape of an Emission Line of CH Produced in an Oxyacetylene Flame*

D. H. Rank, G. D. Saksena, and T. A. Wiggins
J. Opt. Soc. Am. 48(8) 521-524 (1958)

Dispersion of Air*

Edson R. Peck and Kaye Reeder
J. Opt. Soc. Am. 62(8) 958-962 (1972)