title: Experimental studies of far-field superlens for sub-diffractional optical imaging.
abstract: Contrary to the conventional near-field superlensing, subwavelength superlens imaging is experimentally demonstrated in the far-field. The key element is termed as a Far-field SuperLens (FSL) which consists of a conventional superlens and a nanoscale coupler. The evanescent fields from the object are enhanced and then converted into propagating fields by the FSL. By only measuring the propagating field in the far-field, the object image can be reconstructed with subwavelength resolution. As an example of this concept, we design and fabricate a silver structured one dimensional FSL. Experimental results show that feature resolution of better than 50nm is possible using current FSL design.
authors: Zhaowei
authors: Z
authors: Liu
authors: Stéphane
authors: S
authors: Durant
authors: Hyesog
authors: H
authors: Lee
authors: Yuri
authors: Y
authors: Pikus
authors: Yi
authors: Y
authors: Xiong
authors: Cheng
authors: C
authors: Sun
authors: Xiang
authors: X
authors: Zhang