Andryieuski, AndreiKuznetsova, Svetlana M.Zhukovsky, Sergei VLavrinenko, AndreiKivshar, Yuri2016-06-142045-2322http://hdl.handle.net/1885/103239We reveal an outstanding potential of water as an inexpensive, abundant and bio-friendly high-refractive-index material for creating tunable all-dielectric photonic structures and metamaterials. Specifically, we demonstrate thermal, mechanical and gravitational tunability of magnetic and electric resonances in a metamaterial consisting of periodically positioned water-filled reservoirs. The proposed water-based metamaterials can find applications not only as cheap and ecological microwave devices, but also in optical and terahertz metamaterials prototyping and educational lab equipment.Changed as external authorAuthor/s retain copyright201510.1038/srep135352016-06-14