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Recent advances in nanofabrication technologies have spurred many breakthroughs in the field of photonic metamaterials that provide efficient ways of manipulating light–matter interaction at subwavelength scales. As one of the most important applications, photonic metamaterials can be used to implement novel optical absorbers. First the morphology engineering of various photonic metamaterial absorbers...
Photonic topological transitions (PTTs) in metamaterials open a new realm of research with a number of interesting optical phenomena and provide an efficient route to manipulate light–matter interactions at nanoscale. Here, it is shown that, by tailoring the topology of anisotropic metamaterial's equi‐frequency surface, a narrow angular optical transparency window appears around the PTT frequency,...
Using planar hyperbolic metamaterials composed of alternating layers of metal (Ag) and dielectric (SiO2), we demonstrate a transmission device for nanoparticle sensing that exhibits extremely high optical contrast.
We propose and experimentally demonstrate that unidirectional transmission of visible light can be provided by a reciprocal and passive planar device of wavelength-scale-thickness, incorporating subwavelength-pitch gratings and a hyperbolic metamaterial.
We report the experimental implementation of a bulk metamaterial with an all-angle left-handed response in the ultraviolet. Using this metamaterial, we fabricate an optically switchable Veselago flat lens capable of imaging arbitrary two-dimensional objects beyond the near field.
We present that a sub-diffraction-limited photolithography technique can be theoretically achieved by affiliating an anisotropic metamaterial under the conventional photolithographic mask. Based on the special dispersion characteristics of the metamaterial, only the enhanced evanescent waves with high spatial frequencies can transmit through the metamaterial and engage in the lithography process....
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