Effect of Nanohole Spacing on the Self-Imaging Phenomenon Created by the Three-Dimensional Propagation of Light through Periodic Nanohole Arrays.
Effect of Nanohole Spacing on the Self-Imaging Phenomenon Created by the Three-Dimensional Propagation of Light through Periodic Nanohole Arrays.
复制标题
DOI：
10.1021/jp306179d
复制
发表时间：
2012-09-20
影响因子：
3.7
通讯作者：
Ray, Krishanu
中科院分区：
文献类型：
--
作者：
Chowdhury, Mustafa H.;Lindquist, Nathan C.;Lesuffleur, Antoine;Oh, Sang-Hyun;Lakowicz, Joseph R.;Ray, Krishanu
我们提出了一个详细的研究，纳米孔之间的距离，控制自成像现象产生的三维传播的光通过周期性纳米孔阵列在等离子体衬底。我们使用扫描近场光学显微镜（SNOM）绘制了银膜上不同间距尺寸的纳米孔阵列10×10以上不同高度的光强分布。我们的研究结果表明，要产生自成像现象，孔间间距必须大于入射光的波长。我们还提出了时域有限差分（FDTD）计算，该计算结果定性地证实了我们的实验结果。我们的实验和时域有限差分结果都表明，对于较大间距的结构，自成像现象更为明显。我们认为，这种自成像现象与塔尔伯特成像效应有关，塔尔伯特成像效应也被等离子体成分修饰，可能用于为新型光学显微镜提供基础。
We present a detailed study of the inter-nanohole distance that governs the self-imaging phenomenon created by the three-dimensional propagation of light through periodic nanohole arrays on plasmonic substrates. We used scanning near-field optical microscopy (SNOM) to map the light intensity distributions at various heights above 10×10 nanohole arrays of varying pitch sizes on silver films. Our results suggest the inter-hole spacing has to be greater than the wavelength of the incident light to create the self-imaging phenomenon. We also present Finite-Difference Time-Domain (FDTD) calculations which show qualitative corroboration of our experimental results. Both our experimental and FDTD results show that the self-imaging phenomenon is more pronounced for structures with larger pitch sizes. We believe this self-imaging phenomenon is related to the Talbot imaging effect that has also been modified by a plasmonic component and can potentially be used to provide the basis for a new class of optical microscopes.
登录
查看更多内容
影响因子：
3.8
作者：
Hua Y;Suh JY;Zhou W;Huntington MD;Odom TW
通讯作者：
Odom TW
影响因子：
64.8
作者：
Ebbesen, TW;Lezec, HJ;Wolff, PA
通讯作者：
Wolff, PA
影响因子：
44.1
作者：
Garcia-Vidal, F. J.;Martin-Moreno, L.;Kuipers, L.
通讯作者：
Kuipers, L.
影响因子：
4
作者：
Chowdhury, Mustafa H.;Catchmark, Jeffrey M.;Lakowicza, Joseph R.
通讯作者：
Lakowicza, Joseph R.
影响因子：
3.7
作者：
Chowdhury, Mustafa H.;Chakraborty, Sudipto;Ray, Krishanu
通讯作者：
Ray, Krishanu