Geometric determination of saturation in fluorescence spectroscopy

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In laser spectroscopy, saturation of atomic or molecular transitions cannot be ignored, even at modest laser intensities. The saturation status is customarily diagnosed from measurements of saturation curves describing the dependence of spectroscopic signals on laser intensity. I propose an alternative method that relies on a geometric comparison of the spatial laser profile with images of the spectroscopic quantity under investigation. A single image can be used to determine the saturation status and its associated saturation laser intensity. © 2005 Optical Society of America.
Original languageEnglish
Pages (from-to)2879 - 2886
Number of pages8
JournalApplied Optics
Issue number14
Publication statusPublished - 10 May 2005


All Science Journal Classification (ASJC) codes

  • Atomic and Molecular Physics, and Optics

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