Two-dimensional imaging by far-field superlens at visible wavelengths.
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.
Xiong
Yi
Y
5130 Etcheverry Hall, NSF Nanoscale Science and Engineering Center, University of California, at Berkeley, Berkeley, California 94720, USA.
Liu
Zhaowei
Z
Sun
Cheng
C
Zhang
Xiang
X
D000465:Algorithms; D004563:Electrochemistry / Q000379:methods; D007090:Image Interpretation, Computer-Assisted; D007091:Image Processing, Computer-Assisted; D008670:Metals / Q000737:chemistry; D008853:Microscopy / Q000295:instrumentation* / Q000379:methods*; D008962:Models, Theoretical; D053758:Nanoparticles; D036103:Nanotechnology / Q000379:methods*; D055095:Optics and Photonics
D008670:Metals