Abstract

Results are presented for a detailed study of how the fabrication and excitation conditions influence the optical performance of microwave-excited electrodeless discharge lamps. The shape of the lamp is shown to be a critical parameter. The proper choice of experimental conditions yields a source which is up to 2000 times more intense, has a signal/noise ratio 50 times greater, and has a greater spectral overlap with the absorption line than a conventional hollow cathode discharge lamp. Analytical data are presented, and the improvement in sensitivity is shown to be appreciable.

Some Applications of Microwave-Excited Electrodeless Discharge Tubes in Atomic Spectroscopy

R. M. Dagnall and T. S. West
Appl. Opt. 7(7) 1287-1294 (1968)

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Opt. Lett. 36(23) 4611-4613 (2011)