All-Dielectric Metasurfaces with High-Fluorescence-Enhancing Capability
AbstractAll-dielectric metasurfaces are an emerging subfield in photonics. Light-wave manipulation has been extensively explored in these metasurfaces. Although light–matter interaction has also been investigated in these metasurfaces, only a limited number of studies have been reported to date. Here, we employ Si-rod-array metasurfaces to examine their fluorescence-enhancing capability. They were designed to have prominent resonances at the working wavelengths of fluorescent molecules. As a result, we experimentally observed significant fluorescence intensity enhancement, exceeding 1000-fold for a reference substrate that was a non-enhancing, flat Si wafer. Thus, we conclude that the all-dielectric metasurfaces can potentially serve as highly fluorescence-enhancing platforms. Their performance is comparable to the best performance reported for metallic metasurfaces. These results strongly suggest that all-dielectric metasurfaces can contribute to fluorescence-sensing of diverse molecules, including biomolecules. View Full-Text
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Iwanaga, M. All-Dielectric Metasurfaces with High-Fluorescence-Enhancing Capability. Appl. Sci. 2018, 8, 1328.
Iwanaga M. All-Dielectric Metasurfaces with High-Fluorescence-Enhancing Capability. Applied Sciences. 2018; 8(8):1328.Chicago/Turabian Style
Iwanaga, Masanobu. 2018. "All-Dielectric Metasurfaces with High-Fluorescence-Enhancing Capability." Appl. Sci. 8, no. 8: 1328.
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