Picosecond time-resolved pure-rotational coherent anti-Stokes Raman spectroscopy for N-2 thermometry

Thomas Seeger, Johannes Kiefer, Alfred Leipertz, Brian D. Patterson, Christopher J. Kliewer, Thomas B. Settersten

Research output: Contribution to journalArticle

48 Citations (Scopus)
3 Downloads (Pure)

Abstract

Time-resolved pure-rotational coherent anti-Stokes Raman spectroscopy using picosecond-duration laser pulses is investigated for gas thermometry. The use of picosecond laser pulses significantly reduces background caused by scattering of the probe beam, and delayed probing of the Raman coherence enables elimination of interference from nonresonant four-wave mixing processes. Temperatures inferred from rotational spectra are sensitive to the probe delay because of the rotational-level dependence of collisional dephasing of Raman coherences. The sensitivity decreases, however, with increasing temperature, and accurate temperature measurements in a flame are demonstrated using a standard frequency-domain analysis of the spectra. (C) 2009 Optical Society of America
Original languageEnglish
Pages (from-to)3755-3757
Number of pages3
JournalOptics Letters
Volume34
Issue number23
DOIs
Publication statusPublished - 1 Dec 2009

Fingerprint Dive into the research topics of 'Picosecond time-resolved pure-rotational coherent anti-Stokes Raman spectroscopy for N-2 thermometry'. Together they form a unique fingerprint.

  • Cite this

    Seeger, T., Kiefer, J., Leipertz, A., Patterson, B. D., Kliewer, C. J., & Settersten, T. B. (2009). Picosecond time-resolved pure-rotational coherent anti-Stokes Raman spectroscopy for N-2 thermometry. Optics Letters, 34(23), 3755-3757. https://doi.org/10.1364/OL.34.003755