Computation of light scattering by axisymmetric nonspherical particles and comparison with experimental results

Constantinides, GN; Gintides, D; Kattis, SE; Kiriaki, K; Paraskeva, CA; Payatakes, AC; Polyzos, D; Tsinopoulos, SV; Yannopoulos, SN

dc.contributor.author	Constantinides, GN	en
dc.contributor.author	Gintides, D	en
dc.contributor.author	Kattis, SE	en
dc.contributor.author	Kiriaki, K	en
dc.contributor.author	Paraskeva, CA	en
dc.contributor.author	Payatakes, AC	en
dc.contributor.author	Polyzos, D	en
dc.contributor.author	Tsinopoulos, SV	en
dc.contributor.author	Yannopoulos, SN	en
dc.date.accessioned	2014-03-01T01:13:38Z
dc.date.available	2014-03-01T01:13:38Z
dc.date.issued	1998	en
dc.identifier.issn	0003-6935	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/12627
dc.subject	Light Scattering	en
dc.subject.classification	Optics	en
dc.subject.other	WAVE SCATTERING	en
dc.subject.other	OBJECTS	en
dc.subject.other	EQUATIONS	en
dc.title	Computation of light scattering by axisymmetric nonspherical particles and comparison with experimental results	en
heal.type	journalArticle	en
heal.identifier.primary	10.1364/AO.37.007310	en
heal.identifier.secondary	http://dx.doi.org/10.1364/AO.37.007310	en
heal.language	English	en
heal.publicationDate	1998	en
heal.abstract	A laboratory prototype of a novel experimental apparatus for the analysis of spherical and axisymmetric nonspherical particles in Liquid suspensions has been developed. This apparatus determines shape, volume, and refractive index, and this is the main difference of this apparatus from commercially available particle analyzers. Characterization is based on the scattering of a monochromatic laser beam by particles [which can be inorganic, organic, or biological (such as red blood cells and bacteria)] and on the strong relation between the light-scattering pattern and the morphology and the volume, shape, and refractive index of the particles. To keep things relatively simple, first me focus attention on axisymmetrical particles, in which case hydrodynamic alignment can be used to simplify signal gathering and processing. Fast and reliable characterization is achieved by comparison of certain properly selected characteristics of the scattered-light pattern with the corresponding theoretical values, which are readily derived from theoretical data and are stored in a look-up table, The data in this table were generated with a powerful boundary-element method, which can solve the direct scattering problem for virtually arbitrary shapes. A specially developed fast pattern-recognition technique makes possible the on-line characterization of axisymmetric particles. Successful results with red blood cells and bacteria are presented. (C) 1998 Optical Society of America OCIS codes: 290.0290, 290.5850, 120.5710, 170.1470, 120.5820, 000.3860.	en
heal.publisher	OPTICAL SOC AMER	en
heal.journalName	APPLIED OPTICS	en
dc.identifier.doi	10.1364/AO.37.007310	en
dc.identifier.isi	ISI:000076764100023	en
dc.identifier.volume	37	en
dc.identifier.issue	31	en
dc.identifier.spage	7310	en
dc.identifier.epage	7319	en