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arXiv · 1704.02829

Using highly uniform and smooth Selenium colloids as low-loss magnetodielectric building blocks of optical metafluids

YongDeok Cho·Ji-Hyeok Huh·Kyung Jin Park·Kwangjin Kim·Jaewon Lee·Seungwoo Lee
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Abstract

We systematically analyzed magnetodielectric resonances of Se colloids for the first time to exploit the possibility for use as building blocks of all-dielectric optical metafluids. By taking synergistic advantages of Se colloids, including (i) high-refractive-index at optical frequencies, (ii) unprecedented structural uniformity, and (iii) versatile access to copious quantities, the Kerker-type directional light scattering resulting from efficient coupling between strong electric and magnetic resonances were observed directly from Se colloidal suspension. Thus, the use of Se colloid as a generic magnetodielectric building block highlights an opportunity for the fluidic low-loss optical antenna, which can be processed via spin-coating and painting.

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YongDeok Cho, Ji-Hyeok Huh, Kyung Jin Park, Kwangjin Kim, Jaewon Lee, Seungwoo Lee. 2017-04-10. Using highly uniform and smooth Selenium colloids as low-loss magnetodielectric building blocks of optical metafluids. https://doi.org/10.1364/oe.25.013822

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