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Broadband Perfect Absorber with Titanium Nitride Nano-disk Array

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Abstract

A broadband metamaterial absorber (MA) based on the titanium nitride (TiN) nano-disk array is studied using finite difference time domain simulations. The semiconducting indium tin oxide (ITO) thin film is introduced as the space layer in this sandwiched structure. Utilizing the symmetrical geometry of the MA structure, polarization insensitivity of the broadband absorption was gained. The absorber with TiN nano-disk array shows a peak absorbance of 99 % and larger than 98 % from 560 to 675 nm by numerical simulation. This compact design may have potential applications in the plasmonic sensing and photovoltaic devices.

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Authors and Affiliations

  1. R&D Center of Optical Thin Films, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai, 201800, China

    Jianguo Wang, Weili Zhang, Meiping Zhu, Kui Yi & Jianda Shao

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  1. Jianguo Wang
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  2. Weili Zhang
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  3. Meiping Zhu
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  4. Kui Yi
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  5. Jianda Shao
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Correspondence to Jianguo Wang.

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Wang, J., Zhang, W., Zhu, M. et al. Broadband Perfect Absorber with Titanium Nitride Nano-disk Array. Plasmonics 10, 1473–1478 (2015). https://doi.org/10.1007/s11468-015-9962-x

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  • DOI: https://doi.org/10.1007/s11468-015-9962-x

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