Experimental demonstration of optical cloaking of a free-standing Ag nanowire
Abstract
We experimentally performed optical cloaking of a free-standing Ag nanowire fixed at the tip of a scanning tunneling microscope probe. The cloaking medium was a vacuum-evaporated molybdenum oxide (MoO 3 ) layer with a high refractive index ( n ∼2.2). This cloaking was designed such that light scattered by the cloaking target cancels out light scattered by the medium coating the target. The scattering light intensity was suppressed to 8% of that with no cloaking, indicating that the Ag nanowire was almost invisible. This is consistent with the theoretical prediction based on the Mie theory.
Fields of Study & Subjects
Metamaterials and Metasurfaces Applications
Plasmonic and Surface Plasmon Research
Near-Field Optical Microscopy
Publication details
- Journal / source
- Optics Letters
- Volume
- 51
- Issue
- 7
- Pages
- 1689–1689
- Publication date
- 3 March 2026
- Language
- EN