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Mie theory: Angular patterns - effect of the particle size |
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Fig. 1. Effect of the sphere size on the angular pattern, M11(θ), with θ being the scattering angle, of a polystyrene sphere in saline water (salinity of 35.5) illuminated by a HeNe laser beam (λ = 0.6328 µm in air, 0.472 µm in saline water). The relative size of the sphere, x, varies (top to bottom at θ = 90°) from 0.6653 (sphere diameter 0.1 µm), through 6.653 (diam. 1 µm), to 66.53 (diam. 10 µm). All curves are normalized to unity at the scattering angle, θ = 0°. The absolute values of M11(0°) are respectively: 1.25E-3, 1.142E+3, and 6.445E+6. The attenuation efficiency, Qc , values are respectively 6.295E-3, 2.330, and 2.289. The refractive index of polystyrene is 1.582 - 0i, that of saline water is 1.34 - 0i for the relative refractive index of 1.18 (polystyrene in saline water). Function M11 is defined by Eq. 2a of the Mie theory. The functions were calculated at a scattering angle, θ, resolution of 1° (0.2° for x = 66.53) with the MJC Light Scattering Calculator for Homogeneous Spheres
| CITATION: Jonasz M. 2006. Mie theory: Angular patterns (www.tpdsci.com/Tpc/MiePtnAng.php). In: Top. Part. Disp. Sci. (www.tpdsci.com). |
HISTORY: Published: 03-Mar-2006 Modified: 18-Apr-2006 Peer-reviewed: PENDING |
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