Internal and near-surface fields for a chiral sphere under arbitrary laser beam illumination
Su Bi-Da1, 2, Wang Ming-Jun3, †, Peng Yue2, Yang Su-Hui1, Zhang Hua-Yong4
       

(a) Normalized FID for TEM dn ( rad ) doughnut mode beam ( w 0 = 2 λ ) in x ′ O ′ y ′ plane. Normalized FID (b) in the x ′ O ′ z ′ plane and (c) in the x ′ O ′ y ′ plane for the same model as in Fig. 2 ( k 0 r 0 = 3 π , ε r = 4 , μ r = 1 , κ = 0.5 ), illuminated by the above doughnut mode beam ( x ′ 0 = y ′ 0 = z ′ 0 = 0 ).