Abstract

A new spectroscopic light source, which is essentially an enclosed dc arc with annular jets of gas sweeping past each electrode, is described. The composition and pressure of the carrier gas of this source can be chosen so that the character of the spectra obtained range from similarity to open-arc spectra to Schuler-lamp spectra. The effects of source conditions on the excitation of Cu i and Cu ii spectra are discussed. Spectrograms are included which illustrate the usefulness of a stigmatic image in differentiating between atomic and ionic spectral lines.

© 1963 Optical Society of America

Jet-Controlled Arc II: Excitation of Third Spectra

F. L. Moore, K. H. Thygesen, C. C. Derwin, and M. E. Eward
Appl. Opt. 3(1) 93-95 (1964)

Helium Continuum Light Source for Photoelectric Scanning in the 600–1100 Å Region

R. E. Huffman, Y. Tanaka, and J. C. Larrabee
Appl. Opt. 2(6) 617-623 (1963)

Spectroscopic Line-Profile Studies of Long Magnetically Confined High-Current, Steady-State Vacuum Arcs

J. R. McNally and M. R. Skidmore
Appl. Opt. 2(7) 699-706 (1963)

Optical Excitation of Mercury Vapor for the Production of Isolated Fluorescence

R. Zito and A. E. Schraeder
Appl. Opt. 2(12) 1323-1328 (1963)

Use of Electrodeless Discharge Lamps in the Analysis of Atomic Spectra

Earl F. Worden, Ralph G. Gutmacher, and John G. Conway
Appl. Opt. 2(7) 707-713 (1963)