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Multipass cell design for Stark-modulation spectroscopy.

Christoph Dyroff1, Andreas Zahn, Wolfgang Freude

  • 1Research Center Karlsruhe, Institute for Meteorology and Climate Research, Hermann-von-Helmholtz-Platz1, 76344 Eggenstein-Leopoldshafen, Germany. christoph.dyroff@imk.fzk.de

Applied Optics
|June 16, 2007
PubMed
Summary

A novel multipass cell design enhances absorption and Stark effect measurements. This optical setup achieves excellent beam pointing stability and fast response times, crucial for sensitive spectroscopic applications.

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Area of Science:

  • Optics and Spectroscopy
  • Physical Chemistry

Background:

  • Accurate absorption and Stark effect measurements require stable optical configurations.
  • Existing multipass cells face limitations in stability and response time.

Purpose of the Study:

  • To describe a new multipass cell for absorption and Stark effect measurements.
  • To evaluate the beam pointing stability and response times of the novel design.

Main Methods:

  • A multipass cell utilizing two ring mirrors and nested cylindrical electrodes.
  • Numerical simulations to compare beam pointing stability with a confocal Herriott cell.
  • Response time measurements to assess system dynamics.

Main Results:

  • The developed multipass cell achieved a total optical path length of 40 m.

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  • Excellent exit beam pointing stability was demonstrated.
  • Fast response times were observed, aligning with theoretical predictions.

    • Conclusions:

    • The novel multipass cell design offers superior beam pointing stability and rapid response.
    • This configuration is well-suited for advanced spectroscopic applications requiring high precision.