Aberration-free and functionality-switchable meta-lenses based on tunable metasurfaces
- 7 November 2016
- journal article
- research article
- Published by AIP Publishing in Applied Physics Letters
- Vol. 109 (19), 193506
- https://doi.org/10.1063/1.4967438
Abstract
Constructing a meta-lens with tunable meta-atoms with varactor diodes incorporated, we can precisely control the phase profile of the meta-lens by varying the external voltages imparted on the diodes, such that the dispersion-induced phase distortions at off-working frequencies can be rectified and the functionality of the meta-lens can be dynamically changed. As an illustration, we design and fabricate a tunable meta-lens in the microwave regime and employ both experiments and numerical simulations to demonstrate the aberration-free and dynamically switchable focusing performances of the meta-lens. Our approach paves the road to achieve dispersion-corrected and switchable manipulations of electromagnetic waves in the microwave regime.Funding Information
- National Natural Science Foundation of China (1140406, 11474057, 11674068, 61372034, 61501499)
- China Postdoctoral Science Foundation (2015M570323, 2016T90337)
This publication has 43 references indexed in Scilit:
- Visible-Frequency Metasurfaces for Broadband Anomalous Reflection and High-Efficiency Spectrum SplittingNano Letters, 2015
- Efficient Light Bending with Isotropic Metamaterial Huygens’ SurfacesNano Letters, 2014
- Flat optics with designer metasurfacesNature Materials, 2014
- Broadband Terahertz Wave Deflection Based on C‐shape Complex Metamaterials with Phase DiscontinuitiesAdvanced Materials, 2013
- Terahertz Metamaterials for Linear Polarization Conversion and Anomalous RefractionScience, 2013
- High-Efficiency Broadband Anomalous Reflection by Gradient Meta-SurfacesNano Letters, 2012
- Out-of-Plane Reflection and Refraction of Light by Anisotropic Optical Antenna Metasurfaces with Phase DiscontinuitiesNano Letters, 2012
- Broadband Light Bending with Plasmonic NanoantennasScience, 2012
- Light Propagation with Phase Discontinuities: Generalized Laws of Reflection and RefractionScience, 2011
- Antenna-Guided LightScience, 2011