Abstract

The Structure of the Red Lithium Line λ67C8—The lithium line λ6708 was studied under varying conditions of pressure and current in a vacuum arc, and the Lummer pattern was found to be a simple doublet for low vapor densities. As the vapor density increased, each of the components split into two parts, which are attributed to reversal. The two middle components then merged, the distance between dark centers remaining constant, and then, as each of the reversed lines broadened, the merged components became fainter and finally disappeared when the vapor density became quite high, the pattern then resembling that of a single broadly reversed line. McLennan and Ainslee’s wide quadruplet pattern must be attributed to incipient Stark effects.

© 1925 Optical Society of America

The Red Neon Lines

Keivin Burns
J. Opt. Soc. Am. 11(4) 301-310 (1925)

Multiple Electron Transitions and Primed Spectral Terms*

Arthur Edward Ruark
J. Opt. Soc. Am. 11(3) 199-211 (1925)

Polarization of Sodium Resonance Radiation in Magnetic Fields. Larmor Precession of Excited Atoms.†

A. Ellett
J. Opt. Soc. Am. 10(4) 427-437 (1925)

Characteristics of Photographic Materials in the Ultraviolet

George R. Harrison
J. Opt. Soc. Am. 11(4) 341-356 (1925)

Pipe Line Temperature Measurements

Edward S. Bristol
J. Opt. Soc. Am. 10(2) 243-251 (1925)