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

Kurt L. Haller; Philip C. D. Hobbs

doi:10.1117/12.44253

1 July 1991 Double-beam laser absorption spectroscopy: shot noise-limited performance at baseband with a novel electronic noise canceler

Kurt L. Haller, Philip C. D. Hobbs

Author Affiliations +

Proceedings Volume 1435, Optical Methods for Ultrasensitive Detection and Analysis: Techniques and Applications; (1991) https://doi.org/10.1117/12.44253
Event: Optics, Electro-Optics, and Laser Applications in Science and Engineering, 1991, Los Angeles, CA, United States

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.

Citation Download 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, (1 July 1991); https://doi.org/10.1117/12.44253

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