Nanoscale Tunable Optical Binding Mediated by Hyperbolic Metamaterials

• DOI: 10.1021/acsphotonics.9b01378
• Publication Date: 2019-12-16T23:45:49Z
• Authors: Natalia A. Kostina; Denis A. Kislov; Aliaksandra N. Iv...; Alexey Proskurin; Dmitrii N. Redka; Andrey Novitsky; Pavel Ginzburg; Alexander S. Shalin
• Keywords: Nanophotonics

Carefully designed nanostructures can inspire a new type of optomechanical interactions and allow surpassing limitations set by classical diffractive optical elements. Apart from strong near-field localization, nanostructured environment allows controlling scattering channels might tailor many-body interactions. Here we investigate an effect binding, where several particles demonstrate collective mechanical behavior bunching together in light field. In contrast to separation distances between are diffraction limited, auxiliary hyperbolic metasurface is shown here break this barrier introducing controllable interaction channels. Strong material dispersion the metamaterial along with high spatial confinement modes, which it supports, achieving superior tuning capabilities efficient control over binding on nanoscale. addition, careful choice slab's thickness enables decreasing orders magnitude compared free space scenarios due multiple reflections volumetric modes substrate. Auxiliary tunable metamaterials, nanoscale, open venue for investigations including nanofluidic interactions, triggered biochemical reactions, many others.