Taiyu Okatani, Shota Sekiguchi, Kazuhiro Hane, and Yoshiaki Kanamori,
"Surface-plasmon-coupled optical force sensors based on metal–insulator–metal
metamaterials with movable air gap,"
Scientific Reports, vol. 10, Article number: 14807 (2020)
DOI: 10.1038/s41598-020-71825-x