[10p-Z17-1~19] 3.12 Nanoscale optical science and near-field optics

[10p-Z17-1] Experimental Demonstration of Invisible Cloaked-Silver-Nanowire

Yusuke Kobayashi¹, Mana Toma¹, Hideto Okano², Masayuki Shimojo², 〇Kotaro Kajikawa¹ (1.Tokyo Tech., 2.Shibaura Inst. Tech.)

Keywords:cloaking, invisibility, metamaterials

Cloaking, which makes the material invisible, is one of the most noticeable fields in metamaterial research. However, the invisibility cloaking has been developed only in theory and computer experiments. In this study, we experimentally observed the invisibility of silver nanowire (diameter 70 nm, length about 20 μm) at optical frequency, by plasmonic cloaking. The object to be invisible was a silver nanowire that is immobilized at the top of a STM tip, and molybdenum oxide was used as a cloaking medium, which was vacuum-deposited with the rotation of the sample.