Optical Negative Refraction in Bulk Metamaterials of Nanowires
U.S. National Science Foundation · Lawrence Berkeley National Laboratory · +1 more institution
Abstract
Negative refraction in metamaterials has generated great excitement in the scientific community. Although negative refraction has been realized in microwave and infrared by using metamaterials and by using two-dimensional waveguide structures, creation of a bulk metamaterial showing negative refraction at visible frequency has not been successful, mainly because of the significant resonance losses and fabrication difficulties. We report bulk metamaterials made of nanowires that show such negative refraction for all incident angles in the visible region. Moreover, the negative refraction occurs far from any resonance, resulting in a low-loss and a broad-band propagation at visible frequencies. These remarkable…
Citation impact
- FWCI
- 29.66
- Percentile
- 100%
- References
- 17
Authors
8- JYJie YaoCorresponding
U.S. National Science Foundation, Lawrence Berkeley National Laboratory, University of California, Berkeley
- ZLZhaowei Liu
U.S. National Science Foundation, Lawrence Berkeley National Laboratory, University of California, Berkeley
- YLYongmin Liu
U.S. National Science Foundation, Lawrence Berkeley National Laboratory, University of California, Berkeley
- YWYuan Wang
U.S. National Science Foundation, Lawrence Berkeley National Laboratory, University of California, Berkeley
- CSCheng Sun
U.S. National Science Foundation, Lawrence Berkeley National Laboratory, University of California, Berkeley
Topics & keywords
- Negative refraction
- Metamaterial
- Refraction
- Optics
- Photonic metamaterial
- Resonance (particle physics)
- Nanowire
- Materials science