Dynamic control of reflective/diffusive optical surfaces on EGaIn liquid metal

Keisuke Nakakubo, Hiroaki Yoshioka, Kinichi Morita, Ryoichi Ishimatsu, Abolfazl Kiani, Hans Hallen, Michael D. Dickey, Yuji Oki

研究成果: Contribution to journalArticle査読

抄録

We report a method to dynamically control the surface of gallium-based liquid metal to switch between reflective/diffusive states by removing/depositing oxide films via electrochemical redox reactions. Electrochemical oxidation deposits rough surface oxides that are optically diffusive. Electrochemical reduction returns the metal to a pristine, smooth, and reflective state. This switching is achieved using only ±1.4V. In addition, a meniscus of liquid metal can be pumped to switch between concave/convex shapes. This work expands the range of optical applications of dynamic liquid metal surfaces.

本文言語英語
ページ(範囲)2099-2108
ページ数10
ジャーナルOptical Materials Express
11
7
DOI
出版ステータス出版済み - 7 1 2021

All Science Journal Classification (ASJC) codes

  • 電子材料、光学材料、および磁性材料

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