Abstract

The efficiency of a Raman tube for gases can be increased by multiple reflections from concave mirrors. With a four-mirror arrangement, the intensity of the scattered light entering the spectrograph is increased by the factor 1/(1−R), where R is the reflectivity of the mirrors. A two-mirror Raman tube is described, which gave a nearly fourfold increase in intensity in the ultraviolet.

© 1951 Optical Society of America

Raman Spectroscopy of Gases

H. L. Welsh, E. J. Stansbury, J. Romanko, and T. Feldman
J. Opt. Soc. Am. 45(5) 338-343 (1955)

A Low Temperature Raman Cryostat*

William J. Taylor, A. Lee Smith, and Herrick L. Johnston
J. Opt. Soc. Am. 41(2) 91-93 (1951)

Reflecting Microscopes with Spherical Mirrors

K. P. Norris, W. E. Seeds, and M. H. F. Wilkins
J. Opt. Soc. Am. 41(2) 111-119 (1951)

The Absolute Spectral Diffuse Reflectance of Magnesium Oxide*

W. E. Knowles Middleton and C. L. Sanders
J. Opt. Soc. Am. 41(6) 419-424 (1951)

Spectroscopy in Infrared by Reflection and Its Use for Highly Absorbing Substances*

Ivan Šimon
J. Opt. Soc. Am. 41(5) 336-345 (1951)