Abstract

Fundamental wavelength measurements of the 6328-Å radiation emitted by a helium-neon laser, wavelength stabilized with reference to the Lamb dip, have been made at various pressures of ³He and ²⁰Ne. It has been possible to distinguish the particular effects of helium and neon by making two series of observations, the first at constant neon pressure with the helium pressure varied, the second at constant helium pressure and at various pressures of neon. A blue shift proportional to pressure has been obtained in both cases. The corresponding equation for ³He pressures (p) from 1 to 4 torr and for a constant ²⁰Ne pressure of 0.35 torr is

© 1971 Optical Society of America

Pressure Shifts in a Stabilized Single Wavelength Helium-Neon Laser

A. L. Bloom and D. L. Wright
Appl. Opt. 5(10) 1528-1532 (1966)

Reproducibility of Helium–Neon Laser Wavelengths at 633 nm

K. D. Mielenz, K. F. Nefflen, W. R. C. Rowley, D. C. Wilson, and E. Engelhard
Appl. Opt. 7(2) 289-293 (1968)

Absorption of 3.39-Micron Helium–Neon Laser Emission by Methane in the Atmosphere

Byron N. Edwards and Darrell E. Burch
J. Opt. Soc. Am. 55(2) 174-177 (1965)

Helium 2¹S–n¹P Metastable Transition Probabilities

R. Arrathoon
J. Opt. Soc. Am. 61(3) 332-334 (1971)

Gas Mixtures and Pressures for Optimum Output Power of rf-Excited Helium–Neon Gas Lasers at 632.8 nm

Klaus D. Mielenz and Karl F. Nefflen
Appl. Opt. 4(5) 565-567 (1965)