کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5428027 1508658 2015 10 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Modelling light scattering by absorbing smooth and slightly rough facetted particles
ترجمه فارسی عنوان
پراکندگی نور را با جذب ذرات فشرده صاف و کمی خشن مدلسازی کنید
کلمات کلیدی
پراکندگی نور، انکسار، جذب ذرات چینی، ذرات خرد شده،
موضوعات مرتبط
مهندسی و علوم پایه شیمی طیف سنجی
چکیده انگلیسی

A method for approximating light scattering properties of strongly absorbing facetted particles which are large compared to the wavelength is presented. It consists in adding the approximated external diffraction and reflection far fields and is demonstrated for a smooth hexagonal prism. This computationally fast method is extended towards prisms with slightly rough surfaces by introducing a surface scaling factor in order to account for edge effects on subfacets forming the rough surface. These effects become more pronounced with decreasing subfacet dimension to wavelength ratio. Azimuthally resolved light scattering patterns, phase functions and degree of linear polarisation obtained by this method and by the discrete dipole approximation are compared for hexagonal prisms with smooth and slightly rough surfaces, respectively.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Quantitative Spectroscopy and Radiative Transfer - Volume 157, May 2015, Pages 71-80
نویسندگان
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