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Stark-enhanced diode-laser spectroscopy of formaldehyde using a modified Herriott-type multipass cell

  Articoli su Riviste JCR/ISI  (anno 2007)

Autori:  Dyroff C., Weibring P., Fried A., Richter D., Walega J.G., Zahn A., Freude W., Werle P

Affiliazione Autori:  Institute for Meteorology and Climate Research, Research Center Karlsruhe, Hermann-von-Helmholtz-Platz 1, 76344 Eggenstein-Leopoldshafen, Germany; Earth Observing Laboratory, National Center for Atmospheric Research, 3450 Mitchell Lane, Boulder, CO 80301, USA; Institute of High-Frequency and Quantum Electronics, Universität Karlsruhe (TH), Engesserstrasse 5, 76131 Karlsruhe, Germany; CNR - Istituto Nazionale di Ottica Applicata, Largo E. Fermi 6, 50125 Firenze, Italy

Riassunto:  The combined use of a novel multipass cell and a sample modulation scheme based on the Stark effect in molecular spectra is used to suppress time dependent background signals, which in general limit spectrometer performance during measurements. A rapid background subtraction scheme, in which the external electric field was turned off on alternate scans, as well as a double modulation experiment show drift free, white noise limited characteristics up to integration times of more than 1000 s. This exceeds the generally obtained spectrometer stability by about one order of magnitude.

Rivista/Giornale:  Applied physics. B, Lasers and optics (Print)
Volume n.:  88 (1)      Pagine da: 117  a: 123
DOI: 10.1007/s00340-007-2671-1

*Impact Factor della Rivista: (2007) 2.280   *Citazioni: 5
data tratti da "WEB OF SCIENCE" (marchio registrato di Thomson Reuters) ed aggiornati a:  19/05/2019

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