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Metal film materials have been widely used in optical devices, green energy field, biosensor technologies, and so on. In these applications, the properties of metal surface play the significant role. However, propagation characteristics of light in metal-based materials are still confusing. Wavelength-dependent refraction going from negative to positive at air/metal interface was reported in previous...
We propose a distorted optical waveguide around a microsphere to mimic curved spacetimes caused by the “gravitational fields”. Gravitational lensing effects analogues are experimentally demonstrated and this can be used to prospective light harvesting.
Dominant plane detection is an essential task for autonomous navigation of mobile robots equipped with a vision system, as we assume that the mobile robot moves on the dominant plane. In this paper, the image point motion on a space plane is modeled, and the conception of planar flow which describes the image motion pattern of the points on a plane is introduced. Planar flow provides another geometric...
The light-driven optoelectronic vortex concept is firstly reported in this article. Utilizing illuminating light image to manipulate the liquid flow direction without any mechanic components is the feature of this design, named as optoelectroosmosis flow (OEOF). With the simple spin-coating process to form a thin organic photoconductive material, TiOPc, on the designed ITO pattern, the projected light...
We introduce a novel concept to nano-photonics, namely stereometamaterials. Specifically, we study stacked twisted split-ring resonator metamaterials and demonstrate how their optical properties depend on the particular arrangement of the individual constituents.
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