Nano Letters· 2012Q1
Aberration-Free Ultrathin Flat Lenses and Axicons at Telecom Wavelengths Based on Plasmonic Metasurfaces
- 1,791citations
- Q1SCImago
- 2012year
Short summary
Plasmonic metasurfaces composed of V-shaped nanoantennas create aberration-free flat lenses and axicons for telecom wavelengths.
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Key points
- Aberration-free flat lenses and axicons were created using plasmonic metasurfaces.
- The devices employ V-shaped nanoantennas arranged in a phased array.
- These metasurfaces introduce radial phase discontinuities to shape wavefronts.
- The technology operates at telecom wavelengths and is applicable to high-NA lenses.
AI-generated from the title and abstract; the full text is not read.
Abstract
The concept of optical phase discontinuities is applied to the design and demonstration of aberration-free planar lenses and axicons, comprising a phased array of ultrathin subwavelength-spaced optical antennas. The lenses and axicons consist of V-shaped nanoantennas that introduce a radial distribution of phase discontinuities, thereby generating respectively spherical wavefronts and nondiffracting Bessel beams at telecom wavelengths. Simulations are also presented to show that our aberration-free designs are applicable to high-numerical aperture lenses such as flat microscope objectives.
The authors' abstract, as published at the source. Nano Letters, 2012 · DOI ↗
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Field: Electronic, Optical and Magnetic Materials
Electronic, Optical and Magnetic MaterialsMaterials Science