Abstract
In this article, a novel method of holographic imaging with Au nanoantenna array is presented. In order to obtain the plasmonic holographic plate for a preset letter "NANO", the phase distribution of the hologram is firstly generated by the weighted Gerchberg-Saxton (GSW) algorithm, and then 16 kinds of V-shaped nanoantennas with different geometric parameters are designed to evenly cover the phase shift of 0 to 2π by finite-difference time-domain (FDTD) method. Through orienting these nanoantennas according to the phase distribution of the hologram, the plasmonic array hologram is obtained. Very good imaging quality is observed with our nanoantenna array hologram plate. This method can be used for holographic imaging of arbitrary shape, and may find potential applications in holographic memory, printing and holographic display.
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