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Optical frequency comb Faraday rotation spectroscopy
Umeå University, Faculty of Science and Technology, Department of Physics.
2018 (English)In: Applied physics. B, Lasers and optics (Print), ISSN 0946-2171, E-ISSN 1432-0649, Vol. 124, no 5, article id 79Article in journal (Refereed) Published
Abstract [en]

We demonstrate optical frequency comb Faraday rotation spectroscopy (OFC-FRS) for broadband interference-free detection of paramagnetic species. The system is based on a femtosecond doubly resonant optical parametric oscillator and a fast-scanning Fourier transform spectrometer (FTS). The sample is placed in a DC magnetic field parallel to the light propagation. Efficient background suppression is implemented via switching the direction of the field on consecutive FTS scans and subtracting the consecutive spectra, which enables long-term averaging. In this first demonstration, we measure the entire Q- and R-branches of the fundamental band of nitric oxide in the 5.2–5.4 μm range and achieve good agreement with a theoretical model.

Place, publisher, year, edition, pages
Springer, 2018. Vol. 124, no 5, article id 79
National Category
Atom and Molecular Physics and Optics
Identifiers
URN: urn:nbn:se:umu:diva-148020DOI: 10.1007/s00340-018-6951-8ISI: 000431906400001OAI: oai:DiVA.org:umu-148020DiVA, id: diva2:1211324
Available from: 2018-05-30 Created: 2018-05-30 Last updated: 2018-06-09Bibliographically approved

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Johansson, Alexandra C.

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CiteExportLink to record
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Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
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  • de-DE
  • en-GB
  • en-US
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  • nn-NB
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Output format
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