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Numerical Investagation of a Castle-like Contour Plasmonic Nanoantenna with Operating Wavelengths Ranging in Ultraviolet–Visible, Visible Light, and Infrared Light

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Abstract

We propose a new design of a plasmonic nanoantenna and numerically study its optical properties by means of the 3D finite element method. The nanoantenna is composed of two identical castle-like contour nanometal-filled dielectric media inside the hollows. We examine the influence of the contour thickness, gap width, and dielectric media filled inside the hollows on the antenna resonance conditions. Through these simulations, we show that it is possible to tune an antenna with a constant length over a broad spectral range (ranging in ultraviolet–visible, visible light, and infrared light).

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Acknowledgements

Y.-F. Chau acknowledges the financial support from the National Science Council of the Republic of China (Taiwan) under Contracts NSC 99-2112-M-231-001-MY3, NSC 101-3113-P-002-021-, and NSC-100-2632-E-231-001-MY3.

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Authors and Affiliations

  1. Department of Electronic Engineering, Chien Hsin University of Science and Technology, No. 229, Jianxing Rd, Zhongli City, Taoyuan County, 32097, Taiwan, Republic of China

    Yuan-Fong Chau, Wei-Hsiang Lin, Min-Jer Sung, Ci-Yao Jheng & San-Cai Jheng

  2. Graduate Institute of Applied Physics, National Taiwan University, Taipei, 10617, Taiwan

    Din Ping Tsai

  3. Research Center for Applied Sciences, Academia Sinica, Taipei, 11529, Taiwan

    Din Ping Tsai

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  1. Yuan-Fong Chau
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  2. Wei-Hsiang Lin
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  3. Min-Jer Sung
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  4. Ci-Yao Jheng
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  5. San-Cai Jheng
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  6. Din Ping Tsai
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Correspondence to Yuan-Fong Chau.

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Chau, YF., Lin, WH., Sung, MJ. et al. Numerical Investagation of a Castle-like Contour Plasmonic Nanoantenna with Operating Wavelengths Ranging in Ultraviolet–Visible, Visible Light, and Infrared Light. Plasmonics 8, 755–761 (2013). https://doi.org/10.1007/s11468-012-9469-7

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  • DOI: https://doi.org/10.1007/s11468-012-9469-7

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