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Proceedings Article

Double-beam laser absorption spectroscopy: shot noise-limited performance at baseband with a novel electronic noise canceler

[+] Author Affiliations
Kurt L. Haller, Philip C. D. Hobbs

IBM/Thomas J. Watson Research Ctr. (USA)

Proc. SPIE 1435, Optical Methods for Ultrasensitive Detection and Analysis: Techniques and Applications, 298 (July 1, 1991); doi:10.1117/12.44253
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From Conference Volume 1435

  • Optical Methods for Ultrasensitive Detection and Analysis: Techniques and Applications
  • Bryan L. Fearey
  • Los Angeles, CA | January 20, 1991

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.

© (1991) COPYRIGHT SPIE--The International Society for Optical Engineering. Downloading of the abstract is permitted for personal use only.
Citation

Kurt L. Haller and Philip C. D. Hobbs
"Double-beam laser absorption spectroscopy: shot noise-limited performance at baseband with a novel electronic noise canceler", Proc. SPIE 1435, Optical Methods for Ultrasensitive Detection and Analysis: Techniques and Applications, 298 (July 1, 1991); doi:10.1117/12.44253; http://dx.doi.org/10.1117/12.44253


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