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Proceedings Paper

Double-beam laser absorption spectroscopy: shot noise-limited performance at baseband with a novel electronic noise canceler
Author(s): Kurt L. Haller; Philip C. D. Hobbs
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Paper Abstract

In a high J-value scheme (photo-excitation sequence), the authors investigate the characteristics of three-step photo-ionization, through an autoionizing level, of a complex atom using three single-mode pulsed dye lasers. The report covers (1) ion yield dependence on the balance of three laser intensities; (2) AC Stark effect, observed in intermediate excitation; and (3) multi-photon-resonance effect in a stepwise near-resonant excitation. The experimental results are discussed through comparison with the theoretical analyses, that include the effects of magnetic sublevel degeneracy.

Paper Details

Date Published: 1 July 1991
PDF: 12 pages
Proc. SPIE 1435, Optical Methods for Ultrasensitive Detection and Analysis: Techniques and Applications, (1 July 1991); doi: 10.1117/12.44253
Show Author Affiliations
Kurt L. Haller, IBM/Thomas J. Watson Research Ctr. (United States)
Philip C. D. Hobbs, IBM/Thomas J. Watson Research Ctr. (United States)


Published in SPIE Proceedings Vol. 1435:
Optical Methods for Ultrasensitive Detection and Analysis: Techniques and Applications
Bryan L. Fearey, Editor(s)

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