消色差透镜
光学
相位补偿
物理
材料科学
相(物质)
补偿(心理学)
精神分析
心理学
量子力学
相位噪声
作者
Francesco Aieta,Mikhail A. Kats,Patrice Genevet,Federico Capasso
出处
期刊:Science
[American Association for the Advancement of Science (AAAS)]
日期:2015-02-21
卷期号:347 (6228): 1342-1345
被引量:959
标识
DOI:10.1126/science.aaa2494
摘要
The replacement of bulk refractive optical elements with diffractive planar components enables the miniaturization of optical systems. However, diffractive optics suffers from large chromatic aberrations due to the dispersion of the phase accumulated by light during propagation. We show that this limitation can be overcome with an engineered wavelength-dependent phase shift imparted by a metasurface and demonstrate a design that deflects three wavelengths without dispersion. A planar lens without chromatic aberrations at three wavelengths is also presented. Our design is based on low-loss dielectric resonators which introduce a dense spectrum of optical modes to enable dispersive phase compensation. The suppression of chromatic aberrations in metasurface-based planar photonics will find applications in lightweight collimators for displays, and chromatically-corrected imaging systems.
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