Nano Lett., 7 (11), 3360 -3365, 2007. 10.1021/nl0716449 S1530-6984(07)01644-X
Web Release Date: October 5, 2007

Copyright © 2007 American Chemical Society

Two-Dimensional Imaging by Far-Field Superlens at Visible Wavelengths

Yi Xiong, Zhaowei Liu, Cheng Sun, and Xiang Zhang*

5130 Etcheverry Hall, NSF Nanoscale Science and Engineering Center (NSEC), University of California, at Berkeley, Berkeley, California 94720

Received July 7, 2007

Revised September 5, 2007

Abstract:

We report that two-dimensional (2D) sub-diffraction-limited images can be theoretically reconstructed by a new metamaterial far-field superlens. The metamaterial far-field superlens, composed of a metal-dielectric multilayer and a one-dimensional (1D) subwavelength grating, can work over a broad range of visible wavelengths intrinsically. The imaging principle and the reconstruction process are described in detail. The 2D sub-diffraction-limited imaging ability enables more applications of the far-field superlens in optical nanoimaging and sensing.


Download the full text: PDF | HTML