Propagation properties of radially polarized Pearcey-Gauss vortex beams in free space

Chen Xinpeng¹, Xu Chuangjie², Yang Qian¹, Luo Zhiming¹, Li Xixian¹, Deng Dongmei^{1, †}

Synthesizing intensity distribution as the RPPGVB travels along the z-axis in free space with parameters: λ = 500 nm, x_d = y_d = 0, x′ = y′ = 0.1 mm, w₀ = 2 mm: (a) z = 0, (b) z = 0.3z_e, (c) z = 0.8z_e, (d) z = z_e, (e) z = 1.2z_e, (f) z = 1.8z_e. The unit of the intensity in all the figures is cd.