Near-field characteristics of highly non-paraxial subwavelength optical fields with hybrid states of polarization
Chen Rui-Pin1, †, Gao Teng-Yue1, Chew Khian-Hooi2, Dai Chao-Qing3, Zhou Guo-Quan3, He Sai-Ling4
       

(color online) (a) Variations of with propagation distance z; (b) variations of ( with waist size w for different values of the number of polarization topological charges m. The waist size w was calculated for the interval [0.01λ, λ].