论文部分内容阅读
The Debye series of light scattering by an infinite multi-layered cylinder in an off-axis 2D Gaussian beam is studied.A simplified but rigorous iterative formula for scattering coefficients is presented.The numerical calculations of scattering intensity by a cylinder in on-axis and off-axis beams are developed.It is indicated that the results of Debye series reach an agreement with those of generalized Lorenz-Mie theory and the off-axis distances vary the results to a great extent.The Debye series components of a two-layered cylinder are further discussed.The relations between them with rainbow phenomena are analysed.