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Broadband polarization-independent resonant light absorption using ultrathin plasmonic super absorbers

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  • Koray Aydin

    (Thomas J. Watson Laboratories of Applied Physics, California Institute of Technology, 1200 East California Blvd., MC 128-95 Pasadena, California 91125, USA.
    Present address: Department of Electrical Engineering and Computer Science, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, USA.)

  • Vivian E. Ferry

    (Thomas J. Watson Laboratories of Applied Physics, California Institute of Technology, 1200 East California Blvd., MC 128-95 Pasadena, California 91125, USA.)

  • Ryan M. Briggs

    (Thomas J. Watson Laboratories of Applied Physics, California Institute of Technology, 1200 East California Blvd., MC 128-95 Pasadena, California 91125, USA.)

  • Harry A. Atwater

    (Thomas J. Watson Laboratories of Applied Physics, California Institute of Technology, 1200 East California Blvd., MC 128-95 Pasadena, California 91125, USA.
    Kavli Nanoscience Institute, California Institute of Technology)

Abstract

Resonant plasmonic and metamaterial structures allow for control of fundamental optical processes such as absorption, emission and refraction at the nanoscale. Considerable recent research has focused on energy absorption processes, and plasmonic nanostructures have been shown to enhance the performance of photovoltaic and thermophotovoltaic cells. Although reducing metallic losses is a widely sought goal in nanophotonics, the design of nanostructured 'black' super absorbers from materials comprising only lossless dielectric materials and highly reflective noble metals represents a new research direction. Here we demonstrate an ultrathin (260 nm) plasmonic super absorber consisting of a metal–insulator–metal stack with a nanostructured top silver film composed of crossed trapezoidal arrays. Our super absorber yields broadband and polarization-independent resonant light absorption over the entire visible spectrum (400–700 nm) with an average measured absorption of 0.71 and simulated absorption of 0.85. Proposed nanostructured absorbers open a path to realize ultrathin black metamaterials based on resonant absorption.

Suggested Citation

  • Koray Aydin & Vivian E. Ferry & Ryan M. Briggs & Harry A. Atwater, 2011. "Broadband polarization-independent resonant light absorption using ultrathin plasmonic super absorbers," Nature Communications, Nature, vol. 2(1), pages 1-7, September.
    • Handle: RePEc:nat:natcom:v:2:y:2011:i:1:d:10.1038_ncomms1528
    DOI: 10.1038/ncomms1528
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    1. Patel, Shobhit K. & Parmar, Juveriya & Katkar, Vijay, 2022. "Graphene-based multilayer metasurface solar absorber with parameter optimization and behavior prediction using Long Short-Term Memory model," Renewable Energy, Elsevier, vol. 191(C), pages 47-58.
    2. Hao Jiang & Jintao Fu & Jingxuan Wei & Shaojuan Li & Changbin Nie & Feiying Sun & Qing Yang Steve Wu & Mingxiu Liu & Zhaogang Dong & Xingzhan Wei & Weibo Gao & Cheng-Wei Qiu, 2024. "Synergistic-potential engineering enables high-efficiency graphene photodetectors for near- to mid-infrared light," Nature Communications, Nature, vol. 15(1), pages 1-9, December.
    3. Huiqin Zhang & Bhaskar Abhiraman & Qing Zhang & Jinshui Miao & Kiyoung Jo & Stefano Roccasecca & Mark W. Knight & Artur R. Davoyan & Deep Jariwala, 2020. "Hybrid exciton-plasmon-polaritons in van der Waals semiconductor gratings," Nature Communications, Nature, vol. 11(1), pages 1-9, December.
    4. Li, Haoran & He, Yurong & Liu, Ziyu & Jiang, Baocheng & Huang, Yimin, 2017. "A flexible thin-film membrane with broadband Ag@TiO2 nanoparticle for high-efficiency solar evaporation enhancement," Energy, Elsevier, vol. 139(C), pages 210-219.

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