Nanohole array as a lens.
We demonstrate that a quasi-crystal array of nanoholes in a metal screen can mimic a function of the lens: one-to-one imaging of a point source located a few tens of wavelengths away from the array to a point on the other side of the array. A displacement of the point source leads to a linear displacement of the image point. Complex structures composed of multiple point sources can be faithfully imaged with resolutions comparable to those of high numerical aperture lenses.
Optoelectronics Research Center, University of Southampton, SO17 1BJ, United Kingdom.
Fu Min
FM
Huang
Tsung Sheng
TS
Kao
Vassili A
VA
Fedotov
Yifang
Y
Chen
Nikolay I
NI
Zheludev