Table of Contents
Sensors, Volume 19, Issue 8 (April-2 2019) – 210 articles
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Cover Story (view full-size image) The multiband imaging technique has been developed to obtain spatial and spectral information for [...] Read more. The multiband imaging technique has been developed to obtain spatial and spectral information for various applications, such as product evaluation, food inspection, biomedicine, and aerospace. This paper reports a multiband color transmission from the visible to the near-infrared (NIR) achieved by our proposed plasmonic color filters, composed of concentric corrugated metallic thin-film rings. The surface plasmon resonance is excited by the periodic corrugation, and the coupled light is transmitted through the central aperture. We investigated the angle of incidence dependence of the transmission color selectivity and the color purity of the fabricated plasmonic color filter array. High color purity of multiband transmission from the visible to the NIR is of interest in bio-imaging, day/night vision cameras, remote sensing, etc. View this paper.