Low-Power Electrochemical Modulation of Silicon-Based Metasurfaces
Elena Kovalik,
Janna Eaves-Rathert,
Cary L. Pint
et al.
Abstract:The incorporation of active materials
into metasurface
architectures
enhances functionality by enabling active tuning of the electromagnetic
response, a freedom that would be highly beneficial in many applications
at visible frequencies. Here, we employ Li-ion insertion into amorphous
silicon, a traditional battery chemistry, to realize modulation of
visible frequency metasurfaces utilizing both a change in refractive
index and accompanying lattice expansion. We quantify the refractive
index change upon lithia… Show more
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