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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 19, Iss. 25 — Dec. 5, 2011
  • pp: 25488–25499

Scattering signatures of suspended particles: an integrated system for combining digital holography and laser diffraction

Emlyn J. Davies, W. Alex M. Nimmo-Smith, Yogesh C. Agrawal, and Alejandro J. Souza  »View Author Affiliations


Optics Express, Vol. 19, Issue 25, pp. 25488-25499 (2011)
http://dx.doi.org/10.1364/OE.19.025488


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Abstract

The use of laser diffraction is now common practice for the determination of an in situ particle size distribution in the marine environment. However, various imaging techniques have shown that particles vary greatly in shape, leading to uncertainty in the response of laser diffraction instruments when subjected to this diverse range of complex particles. Here we present a novel integrated system which combines both digital in-line holography and a LISST-100 type C, to simultaneously record in-focus images of artificial and natural particles with their small-angle forward scattering signature. The system will allow for further development of a reliable alternative to Mie Theory when using laser diffraction for the in situ measurement of complex suspended particles. A more detailed knowledge of the performance of laser diffraction when subjected to the wide variety of complex particles found in the marine environment will then be possible.

© 2011 OSA

OCIS Codes
(010.0010) Atmospheric and oceanic optics : Atmospheric and oceanic optics
(120.5820) Instrumentation, measurement, and metrology : Scattering measurements
(290.5850) Scattering : Scattering, particles
(090.1995) Holography : Digital holography
(290.2558) Scattering : Forward scattering
(010.4458) Atmospheric and oceanic optics : Oceanic scattering

ToC Category:
Atmospheric and Oceanic Optics

History
Original Manuscript: August 10, 2011
Revised Manuscript: November 14, 2011
Manuscript Accepted: November 15, 2011
Published: November 29, 2011

Citation
Emlyn J. Davies, W. Alex M. Nimmo-Smith, Yogesh C. Agrawal, and Alejandro J. Souza, "Scattering signatures of suspended particles: an integrated system for combining digital holography and laser diffraction," Opt. Express 19, 25488-25499 (2011)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-19-25-25488


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