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典型文献
High numerical aperture RGB achromatic metalens in the visible
文献摘要：
We theoretically and experimentally demonstrate an RGB achromatic metalens that operates concurrently at three visible wavelengths(λ=450,532,and 700 nm)with a high numerical aperture of 0.87.The RGB metalens is designed by simple integration of metalens components with the spatial interleaving method.The simulated spatial interleaving metalens shows RGB achromatic operation with focusing efficiencies of 25.2％,58.7％,and 66.4％at the wavelengths of450,532,and 700 nm,respectively.A 450 μm diameter metalens operating at three designated wavelengths is fabricated with low-loss hydrogenated amorphous silicon.The fabricated metalens has the measured focusing efficiencies of 5.9％,11.3％,and 13.6％at λ=450,532,and 700 nm,respectively.The Strehl ratios of 0.89,0.88,and 0.82 are obtained at given wavelengths,which show a capability of diffraction-limited operation.
文献关键词：
中图分类号：
[1] 数理科学和化学（O） / 力学（O3） / 振动理论（O32） / 非线性振动（O322）
[2] 医药、卫生（R） / 基础医学（R3） / 病理学（R36） / 病理过程（R364）
[3] 自动化技术、计算机技术（TP） / 计算技术、计算机技术（TP3） / 计算机的应用（TP39） / 信息处理(信息加工)（TP391）
作者姓名：
SANGWON BAEK;JOOHOON KIM;YESEUL KIM;WON SEOK CHO;TREVON BADLOE;SEONG-WON MOON;JUNSUK RHO;JONG-LAM LEE
作者机构：
Department of Materials Science and Engineering,Pohang University of Science and Technology(POSTECH),Pohang 37673,Republic of Korea;Department of Mechanical Engineering,Pohang University of Science and Technology(POSTECH),Pohang 37673,Republic of Korea;Department of Chemical Engineering,Pohang University of Science and Technology(POSTECH),Pohang 37673,Republic of Korea;POSCO-POSTECH-RIST Convergence Research Center for Flat Optics and Metaphotonics,Pohang 37673,Republic of Korea;National Institute of Nanomaterials Technology(NINT),Pohang 37673,Republic of Korea
文献出处：
光子学研究（英文）
引用格式：
[1]SANGWON BAEK;JOOHOON KIM;YESEUL KIM;WON SEOK CHO;TREVON BADLOE;SEONG-WON MOON;JUNSUK RHO;JONG-LAM LEE-.High numerical aperture RGB achromatic metalens in the visible)[J].光子学研究（英文）,2022(12):前插1-前插10
A类：
of450
B类：
High,numerical,aperture,RGB,achromatic,metalens,visible,We,theoretically,experimentally,demonstrate,that,operates,concurrently,three,wavelengths,high,designed,by,simple,integration,components,spatial,interleaving,method,simulated,shows,operation,focusing,efficiencies,respectively,diameter,operating,designated,fabricated,low,loss,hydrogenated,amorphous,silicon,has,measured,Strehl,ratios,are,obtained,given,which,capability,diffraction,limited
AB值：
0.494426
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