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SubDiffraction-Limited Optical Imaging with a Silver Superlens
This work demonstrated sub–diffraction-limited imaging with 60-nanometer half-pitch resolution, or one-sixth of the illumination wavelength, using silver as a natural optical superlens and showed that arbitrary nanostructures can be imaged with good fidelity.
Ultrasonic metamaterials with negative modulus
A new class of ultrasonic metamaterials consisting of an array of subwavelength Helmholtz resonators with designed acoustic inductance and capacitance with an effective dynamic modulus with negative values near the resonance frequency is reported.
Terahertz Magnetic Response from Artificial Materials
It is shown that magnetic response at terahertz frequencies can be achieved in a planar structure composed of nonmagnetic conductive resonant elements and suggested that artificial magnetic structures, or hybrid structures that combine natural and artificial magnetic materials, can play a key role in teraHertz devices.
Ultralight, ultrastiff mechanical metamaterials
A class of microarchitected materials that maintain a nearly constant stiffness per unit mass density, even at ultralow density is reported, which derives from a network of nearly isotropic microscale unit cells with high structural connectivity and nanoscale features, whose structural members are designed to carry loads in tension or compression.
Projection micro-stereolithography using digital micro-mirror dynamic mask
Ultrabroadband light absorption by a sawtooth anisotropic metamaterial slab.
An ultrabroadband thin-film infrared absorber made of sawtoothed anisotropic metamaterial waveguide that can be applied in the field of designing photovoltaic devices and thermal emitters.
Tunable Light-Matter Interaction and the Role of Hyperbolicity in Graphene-hBN System.
It is found that the graphene plasmon couples differently with the phonons of the two Reststrahlen bands, owing to their different hyperbolicity, which leads to distinctively different interaction between an external quantum emitter and the plAsmon-phonon modes in the two bands.
Polaritons in layered two-dimensional materials.
The emerging field of 2D material polaritonics and their hybrids provide enticing avenues for manipulating light-matter interactions across the visible, infrared to terahertz spectral ranges, with new optical control beyond what can be achieved using traditional bulk materials.
Ultrasmooth silver thin films deposited with a germanium nucleation layer.
The presence of the thin layer of Ge changes the growth kinetics of the electron-beam-evaporated Ag, leading to Ag films with smooth surface morphology and high electrical conductivity, which are very promising for large-scale applications as molecular anchors, optical metamaterials, plasmonic devices, and several areas of nanophotonics.
Multimaterial 4D Printing with Tailorable Shape Memory Polymers
- Qi Ge, A. H. Sakhaei, Howon Lee, Conner K. Dunn, N. Fang, M. Dunn
- Materials ScienceScientific reports
- 1 August 2016
A new 4D printing approach that can create high resolution (up to a few microns), multimaterial shape memory polymer (SMP) architectures based on high resolution projection microstereolithography (PμSL) and uses a family of photo-curable methacrylate based copolymer networks.