کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1534792 1512610 2014 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Fast calculation of the light differential scattering cross section of optically soft and convex bodies
ترجمه فارسی عنوان
محاسبه سریع مقطع پراکندگی نور دیفرانسیل از اجسام اپتیکی نرم و محدب
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد مواد الکترونیکی، نوری و مغناطیسی
چکیده انگلیسی

Depending on the range of size and the refractive index value, an optically soft particle follows Rayleigh–Debye–Gans or RDG approximation or Van de Hulst approximation. Practically the first one is valid for small particles whereas the second one works for large particles. Klett and Sutherland (Klett JD, Sutherland RA. App. Opt. 1992;31:373) proved that the Wentzel–Kramers–Brillouin or WKB approximation leads to accurate values of the differential scattering cross section of sphere and cylinder over a wide range of size. In this paper we extend the work of Klett and Sutherland by proposing a method allowing a fast calculation of the differential scattering cross section for any shape of particle with a given orientation and illuminated by unpolarized light. Our method is based on a geometrical approximation of the particle by replacing each geometrical cross section by an ellipse and then by exactly evaluating the differential scattering cross section of the newly generated body. The latter one contains only two single integrals.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Optics Communications - Volume 313, 15 February 2014, Pages 394–400
نویسندگان
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