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Optics Letters

Optics Letters


  • Editor: Alan E. Willner
  • Vol. 38, Iss. 3 — Feb. 1, 2013
  • pp: 257–259

Compact multipass optical cell for laser spectroscopy

Béla Tuzson, Markus Mangold, Herbert Looser, Albert Manninen, and Lukas Emmenegger  »View Author Affiliations

Optics Letters, Vol. 38, Issue 3, pp. 257-259 (2013)

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A multipass cell (MPC) design for laser absorption spectroscopy is presented. The development of this new type of optical cell was driven by stringent criteria for compactness, robustness, low volume, and ease of use in optical systems. A single piece of reflective toroidal surface forms a near-concentric cavity with a volume of merely 40cm3. Contrary to traditional MPCs, this design allows for flexible path-length adjustments by simply changing the aiming angle of the laser beam at the entrance window. Two effective optical path lengths of 2.2 and 4.1 m were chosen to demonstrate the cell’s suitability for high-precision isotope ratio measurements of CO2 at 1% and ambient mixing ratio levels.

© 2013 Optical Society of America

OCIS Codes
(120.6200) Instrumentation, measurement, and metrology : Spectrometers and spectroscopic instrumentation
(220.1000) Optical design and fabrication : Aberration compensation
(300.6340) Spectroscopy : Spectroscopy, infrared

ToC Category:

Original Manuscript: November 19, 2012
Revised Manuscript: December 13, 2012
Manuscript Accepted: December 21, 2012
Published: January 16, 2013

Béla Tuzson, Markus Mangold, Herbert Looser, Albert Manninen, and Lukas Emmenegger, "Compact multipass optical cell for laser spectroscopy," Opt. Lett. 38, 257-259 (2013)

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