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Related Experiment Videos

Multilaser Herriott cell for planetary tunable laser spectrometers.

Christopher G Tarsitano1, Christopher R Webster

  • 1Jet Propulsion Laboratory, California Institute of Technology, Pasadena 91109, USA. christopher.g.tarsitano@aero.org

Applied Optics
|October 2, 2007
PubMed
Summary
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This study models multilaser Herriott cells for tunable laser absorption spectrometers. These compact spectrometers are designed for planetary missions, including the Mars Science Laboratory mission.

Area of Science:

  • Optics and Photonics
  • Planetary Science
  • Spectroscopy

Background:

  • Tunable laser absorption spectrometers are crucial for planetary atmospheric analysis.
  • Herriott cells offer long optical path lengths in a compact design.
  • Previous designs lacked multi-laser integration for comprehensive analysis.

Purpose of the Study:

  • To mathematically model multilaser Herriott cells for tunable laser absorption spectrometers.
  • To optimize cell design for planetary missions by accommodating multiple laser sources.
  • To reduce spectrometer size through strategic output hole placement.

Main Methods:

  • Application of geometric optics principles.
  • Utilizing matrix methods for optical path modeling.

Related Experiment Videos

  • Designing a four-channel Herriott cell configuration.

    • Main Results:

    • Successful mathematical modeling of multilaser Herriott cells.
    • Demonstrated accommodation of independent laser paths within a single gas cell.
    • Integration of strategically placed output holes to minimize spectrometer dimensions.

    Conclusions:

    • Multilaser Herriott cells provide a viable solution for compact, versatile spectrometers.
    • The presented four-channel design is suitable for planetary atmospheric analysis, exemplified by the Mars Science Laboratory mission.
    • This work advances the development of in-situ analytical instruments for space exploration.