Pan Qingwei, Pei Shixin, Cui Fenping, Xu Shanshan, Cao Zhaolou
Appl Opt. 2019 Sep 10;58(26):7151-7156. doi: 10.1364/AO.58.007151.
Scattering of a 1D Airy beam light sheet by a chiral sphere is numerically studied within Mie theory and the plane-wave spectrum method. To testify to the validity of our code and method, the results of scattering intensity of a chiral sphere by an Airy beam light sheet reducing to a homogeneous isotropic sphere are compared with those in existing literature, which shows that these results are in good agreement. Influences of different parameters on differential scattering cross sections in the far field are investigated in detail, including the chiral parameters, sphere radius, and beam position. It is found in the scattering intensity of an Airy beam by a chiral sphere that the chiral sphere, which is compared with a homogeneous isotropic sphere, can decrease the scattering intensity in a region, and the scattering intensity distribution is sensitive to the x position of the Airy beam.
在手性球对一维艾里光束光片的散射研究中,采用米氏理论和平面波谱方法进行了数值模拟。为验证程序和方法的有效性,将手性球对艾里光束光片的散射强度结果(此时手性球简化为均匀各向同性球)与现有文献中的结果进行了比较,结果表明二者吻合良好。详细研究了不同参数对远场微分散射截面的影响,包括手性参数、球半径和光束位置。在手性球对艾里光束的散射强度研究中发现,与均匀各向同性球相比,手性球可使某一区域内的散射强度降低,且散射强度分布对艾里光束的x位置敏感。