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Virtual Journal for Biomedical Optics

Virtual Journal for Biomedical Optics


  • Editors: Andrew Dunn and Anthony Durkin
  • Vol. 8, Iss. 7 — Aug. 1, 2013

Next generation Advanced Laser Fluorometry (ALF) for characterization of natural aquatic environments: new instruments

Alexander Chekalyuk and Mark Hafez  »View Author Affiliations

Optics Express, Vol. 21, Issue 12, pp. 14181-14201 (2013)

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The new optical design allows single- or multi-wavelength excitation of laser-stimulated emission (LSE), provides optimized LSE optical collection for spectral and temporal analyses, and incorporates swappable modules for flow-through and small-volume sample measurements. The basic instrument configuration uses 510 nm laser excitation for assessments of chlorophyll-a, phycobiliprotein pigments, variable fluorescence (Fv/Fm) and chromophoric dissolved organic matter (CDOM) in CDOM-rich waters. The three-laser instrument configuration (375, 405, and 510 nm excitation) provides additional Fv/Fm measurements with 405 nm excitation, CDOM assessments in a broad concentration range, and potential for spectral discrimination between oil and CDOM fluorescence. The new measurement protocols, analytical algorithms and examples of laboratory and field measurements are discussed.

© 2013 OSA

OCIS Codes
(010.4450) Atmospheric and oceanic optics : Oceanic optics
(140.0140) Lasers and laser optics : Lasers and laser optics
(300.0300) Spectroscopy : Spectroscopy
(280.4788) Remote sensing and sensors : Optical sensing and sensors

ToC Category:
Atmospheric and Oceanic Optics

Original Manuscript: April 23, 2013
Revised Manuscript: May 23, 2013
Manuscript Accepted: May 24, 2013
Published: June 7, 2013

Virtual Issues
Vol. 8, Iss. 7 Virtual Journal for Biomedical Optics

Alexander Chekalyuk and Mark Hafez, "Next generation Advanced Laser Fluorometry (ALF) for characterization of natural aquatic environments: new instruments," Opt. Express 21, 14181-14201 (2013)

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