  Plasma-based optics has emerged as an attractive alternative to traditional
solid-state optics for high-power laser manipulation due to its higher damage
threshold. In this work, we propose a plasma zone plate (PZP) driven by the
ponderomotive force of a Laguerre-Gaussian beam when it irradiates an
underdense plasma slice. We formulate the theory of the PZP and demonstrate its
formation and function of focusing high-power lasers using particle-in-cell
simulations. The proposed scheme may offer a new method to focus and manipulate
high-power lasers with plasma-based optics
