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Low-temperature opto-galvanic spectroscopy without discharges

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Abstract

A new versatile method for opto-galvanic spectroscopy is described. The method is based on sensitive detection of impedance changes in dilute plasma without the necessity for a self-sustaining discharge. A one-dimensional model for the effect in a high-pressure electron beam pumped gas is developed and tested. Test spectra for the Balmer-α transition in hydrogen, produced by resonant dissociation of excited hydrogen molecules in high pressure Ne, demonstrate the high resolution and sensitivity achievable for potential spectroscopic and chemical kinetics applications.

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Authors and Affiliations

  1. Department of Physics, Rutgers University, 07102, Newark, NJ, USA

    T. J. McCarthy, M. Salvermoser & D. E. Murnick

Authors
  1. T. J. McCarthy
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  2. M. Salvermoser
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  3. D. E. Murnick
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On the occasion of the 80th birthday of Hendrik de Waard

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McCarthy, T.J., Salvermoser, M. & Murnick, D.E. Low-temperature opto-galvanic spectroscopy without discharges. Hyperfine Interact 151, 209–222 (2003). https://doi.org/10.1023/B:HYPE.0000020414.70920.d0

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  • DOI: https://doi.org/10.1023/B:HYPE.0000020414.70920.d0

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