Improved algorithm of light scattering by a coated sphere
Lei Liua,b, Huarui Wanga,c, Bin Yua, Yamin Xua, Jianqi Shena, a Institute of Science, University of Shanghai for Science and Technology, Shanghai 200093, China b School of Mathematics and Physics, Anhui University of Technology, Ma’anshan 243002, China c College of Physics and Electronic Engineering, Xuzhou Normal University, Xuzhou 221116, China
An efficient numerical algorithm for computing the light scattering by a coated sphere is proposed. The calculation of relevant functions by different recurrence algorithms is discussed. The new algorithm avoids the numerical difficulties, which give rise to significant errors encountered in practice by prior methods. Exemplifying results such as extinction efficiency, scattering efficiency, light scattering intensity as well as calculation speed are provided. The results show that this algorithm is efficient, fast, numerically stable and accurate.
【CateGory Index】： O436.2