| 摘要 |
Optical nanoantennas (100, 800, 1100) are configured to exhibit highly-directional scattering of light, and comprise one or more cubic dielectric nanoparticles (100). The cubic dielectric nanoparticles may be defined by a characteristic dimension (102), such as an edge length, along with a permittivity of the material from which they are composed. These characteristics may be selected such that constructive interference of electric and magnetic resonances results in enhanced scattering in one direction of light comprising at least one predetermined wavelength. An optical nanoantenna (1100) may be coupled to a light emitter (1302) in order to form a directional light source (1300). Such sources may have many applications in sensing, medical diagnosis and treatment, micro-mechanical devices, optical data storage, and on-chip interconnects. |
