Plasmonic holographic imaging with V-shaped nanoantenna array
Plasmonic holographic imaging with V-shaped nanoantenna array
复制标题
V 形纳米天线阵列的等离子体全息成像。
DOI：
10.1364/oe.21.004348
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发表时间：
2013-02-25
期刊：
影响因子：
3.8
通讯作者：
Cai, Weiping
中科院分区：
文献类型：
--
作者：
Zhou, Fei;Liu, Ye;Cai, Weiping
在本文中，提出了一种利用金纳米天线阵列进行全息成像的新方法。为了获得预设字母“NANO”的等离子体全息板，首先通过加权Gerchberg-Saxton（GSW）算法生成全息图的相位分布，然后通过时域有限差分（FDTD）方法设计16种不同几何参数的V形纳米天线均匀覆盖0至2π的相移。通过根据全息图的相位分布对这些纳米天线进行定向，获得等离子体阵列全息图。我们的纳米天线阵列全息板观察到非常好的成像质量。该方法可用于任意形状的全息成像，并在全息存储、印刷和全息显示等领域具有潜在的应用前景。
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.