Two high-intensity foci with the generalized mean generated by a kinoform generalized mean lens

A kinoform generalized mean lens (KGML) is proposed to generate two high-intensity foci with the generalized mean. The construction method of a KGML has been illustrated in the simulation. It has been proved in the simulation and experiment that a KGML generates twin foci with high intensity and the generalized mean. Moreover, the self-reconstruction property of the KGML beam is verified with numerical simulations. The proposed zone plate can be applied to trap two particles stably and generate two clearer images at two different axial positions being the generalized mean.