By Milton Kerker (auth.), Gérard Gouesbet, Gérard Gréhan (eds.)
Optical particle s1z1ng is surely a desirable box of analysis of the maximum sensible value. within the Universe fluids are approximately in every single place, and once they ensue they nearly at all times include debris. inside of bodies we will take the instance of blood transporting a vi tal procession of crimson and white cells. round us, we will locate quite a few debris within the air we breathe, bubbles within the champagne or the soda we drink, or common and synthetic (polluting!) debris within the lakes we swim in. business techniques and structures also are interested by debris, from pulverized coal flames to fluidized beds, in a number purposes concerning rocket exhausts, pneuma tic delivery and extra typically the endless realm of mul tiphase occasions. Such an evidently colossal box will require an entire quantity like this one in basic terms to try to explain it superficially. to make certain, we might desire a medical Prevert to catalogue such an never-ending stock. ultimately, even outdoor our terrestrial spaceship debris may be detected in alien atmospheres or among stars. Theorists will take pleasure in interpreting the richness of light/particle have interaction. ion, a topic that is very faraway from being exhausted. Experimental researchers will love designing and learning a number of probing tools with a laser resource on the enter and a working laptop or computer on the output, specifications of this day' s technological revolution.
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Extra info for Optical Particle Sizing: Theory and Practice
Opt. Soc. , 68, 6, 763-767 (1978). N. Morita, T. Takenaka, T. Yamasaki and Y. Nakanishi, "Scattering of a Beam Wave by a Spherical Object", IEEE Trans. , AP 16, 6, 724-727 (1968). W. C. Tsai and R. J. Pogorzelski, "Eigenfunction Solution of the Scattering of Beam Radiation Fields by Spherical Objects", J. Opt. Soc. , 65, 12, 1457-1463 (1975). S. S. Lee, "Scattering of Laser Beams and the Optical Potential Well for a Homogeneous Sphere", J. Opt. Soc. , 73, 3, 303-312 (1983). G. Gr~han, "Nouveaux progr~s en th~orie de Lorenz-Mie.
CONCLUSIONS The combined effect of the dominant CAM terms (below-critical direct reflection and transmission terms and above-critical total reflection term) was compared with the exact Mie solution within the critical scattering region, for S = 10 3 and S = 10 4 . The results 2 are in good agreement with the "slow" component of the Mie solution, which, as explained before, represents the critical scattering effects (fine structure arises from the farside contribution). We conclude that CAM theory also accounts for critical scattering.
The incident wave propagates f~m the negative w to the positive w, with Cartesian components E , H , E , H , other components being zero, in the system (uvw). We sefl: GOG~ (xw,y ,z ). p 0 0 0 The aim is to compute the properties of the scattered observed at point P(r,6,~) and some associated quantities. light Fig. 1. The Scattering Problem (V stands for E, electric field, or H, magnetic field) w X OG u 'v v}:vv v IV - CARTESIAN DESCRIPTION OF THE INCIDENT WAVE The incident wave is described according to Lax et al 15 who designed a paraxial approximation and 1groduced a procedure to derive higher order corrections and to Davis who presented the same theory in a simpler and more appealing way.