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Virtual Journal for Biomedical Optics

Virtual Journal for Biomedical Optics

| EXPLORING THE INTERFACE OF LIGHT AND BIOMEDICINE

  • Editor: Gregory W. Faris
  • Vol. 3, Iss. 4 — Apr. 23, 2008

Standoff determination of the particle size and concentration of small optical depth clouds based on double scattering measurements: concept and experimental validation with bioaerosols

Gilles Roy and Nathalie Roy  »View Author Affiliations


Applied Optics, Vol. 47, Issue 9, pp. 1336-1349 (2008)
http://dx.doi.org/10.1364/AO.47.001336


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Abstract

A multiple-field-of-view (MFOV) lidar is used to characterize size and optical depth of low concentration of bioaerosol clouds. The concept relies on the measurement of the forward scattered light by using the background aerosols at various distances at the back of a subvisible cloud. It also relies on the subtraction of the background aerosol forward scattering contribution and on the partial attenuation of the first-order backscattering. The validity of the concept developed to retrieve the effective diameter and the optical depth of low concentration bioaerosol clouds with good precision is demonstrated using simulation results and experimental MFOV lidar measurements. Calculations are also done to show that the method presented can be extended to small optical depth cloud retrieval.

© 2008 Optical Society of America

OCIS Codes
(030.4280) Coherence and statistical optics : Noise in imaging systems
(040.1520) Detectors : CCD, charge-coupled device
(110.4280) Imaging systems : Noise in imaging systems
(280.1100) Remote sensing and sensors : Aerosol detection
(280.3640) Remote sensing and sensors : Lidar
(290.4210) Scattering : Multiple scattering

ToC Category:
Remote Sensing and Sensors

History
Original Manuscript: September 5, 2007
Revised Manuscript: February 4, 2008
Manuscript Accepted: February 14, 2008
Published: March 19, 2008

Virtual Issues
Vol. 3, Iss. 4 Virtual Journal for Biomedical Optics

Citation
Gilles Roy and Nathalie Roy, "Standoff determination of the particle size and concentration of small optical depth clouds based on double scattering measurements: concept and experimental validation with bioaerosols," Appl. Opt. 47, 1336-1349 (2008)
http://www.opticsinfobase.org/vjbo/abstract.cfm?URI=ao-47-9-1336

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