Application of plasmonics for CMOS multi-band image sensor

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  • [招待講演] CMOS マルチバンドイメージセンサ開発に向けたプラズモニクス応用
  • ショウタイ コウエン CMOS マルチバンドイメージセンサ カイハツ ニ ムケタ プラズモニクス オウヨウ

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Abstract

The purpose of our research is the development of new CMOS multi-band image sensors with color selectivity ranged from visible to near-infrared . Here, we propose new on-chip color filter of nanostructured metallic thin film based on surface plasmon resonance to realize multi-band color filtering. The proposed color filter consists of periodic corrugated metallic nano-grating with sub-wavelength single aperture. Selected wavelength of incident light excites surface plasmon resonance by the concentric periodical corrugation on metal surface. The wavelength coupled with surface plasmons transmits through the sub-wavelength aperture with beaming light. The beaming light transmission has the advantage to suppress the spatial color cross-talk in the conventional image sensor. Here, we demonstrated the transmission color selectivity from visible to near-infrared range of the fabricated metallic color filters.

Journal

  • ITE Technical Report

    ITE Technical Report 41.37 (0), 13-15, 2017

    The Institute of Image Information and Television Engineers

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