Characteristics of photonic nanojets from two-layer dielectric hemisphere

Liu Yunyue¹, Liu Xianchao^{1, 2}, Li Ling¹, Chen Weidong¹, Chen Yan¹, Huang Yuerong¹, Xie Zhengwei^{1, †}

(color online) (a) Schematic diagram of two-layer dielectric hemisphere. (b) The two-layer dielectric hemisphere illuminated by a plane wave and key parameters of the photonic nanojet.