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Broadband polarization-independent resonant light absorption using ultrathin plasmonic super absorbers
Plasmonic nanostructures and metamaterials can augment the performance of photovoltaic and thermophotovoltaic cells by enhancing their absorption properties. Aydinet al. demonstrate a broadband, ultrathin plasmonic super absorber using crossed trapezoids as part of a metal–insulator–metal stack.
- Koray Aydin
- , Vivian E. Ferry
- & Harry A. Atwater
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Arrays of Lucius microprisms for directional allocation of light and autostereoscopic three-dimensional displays
Autostereoscopic three-dimensional displays allow the perception of depth, by presenting offset images to the left and right eye, without the need for specialized glasses. Yoonet al propose a Luciusmicroprism array to control the directionality and intensity of light in three-dimensional displays.
- Hyunsik Yoon
- , Sang-Guen Oh
- & Hong H. Lee
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On-chip steering of entangled photons in nonlinear photonic crystals
The development of practical photonic quantum technologies will be aided by the spatial control of entangled photons. Lenget al. achieve on-chip spatial control of entangled photons by using domain engineering, rather than by using external optical elements.
- H.Y. Leng
- , X.Q. Yu
- & S.N. Zhu
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Observing chaos for quantum-dot microlasers with external feedback
Optoelectronic devices such as conventional semiconductor lasers are used to study the chaotic behaviour of nonlinear systems. Here chaos is observed for quantum-dot microlasers operating close to the quantum limit with potential for new directions in the study of chaos in quantum systems.
- Ferdinand Albert
- , Caspar Hopfmann
- & Ido Kanter
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Article
| Open Access
Near-field examination of perovskite-based superlenses and superlens-enhanced probe-object coupling
A superlens with a negative index of refraction creates a perfect image because propagating waves focus and evanescent waves reconstruct in the image plane. Here, a perovskite-based superlens is demonstrated for electric evanescent fields, which has potential thermal sensor applications.
- S.C. Kehr
- , Y.M. Liu
- & R. Ramesh
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Atomically flat single-crystalline gold nanostructures for plasmonic nanocircuitry
Polycrystalline substrates are a hindrance to the realization of high-definition plasmonic nanostructures. In this paper the authors chemically grow large and thin gold single crystals, and show that they can be coupled with top-down fabrication methods to produce high-quality nanostructures with good optical properties.
- Jer-Shing Huang
- , Victor Callegari
- & Bert Hecht
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Three-dimensional broadband and broad-angle transformation-optics lens
Lenses with superior performance with respect to conventional uniform materials are desirable. The authors show a three-dimensional lens, made of multilayered metamaterials and based on approximate transformation optics, which works in different polarizations at broad viewing angles and with wide bandwidth.
- Hui Feng Ma
- & Tie Jun Cui
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Monolithic nonlinear pulse compressor on a silicon chip
The development of optical information processing depends on the demonstration of silicon-based all-optical circuit components. Here, the authors show a monolithic pulse compressor, compatible with current electronic processing technologies, which is able to function at low power input.
- Dawn T.H. Tan
- , Pang C. Sun
- & Yeshaiahu Fainman
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| Open Access
Three-dimensional broadband ground-plane cloak made of metamaterials
Optical cloaking has already been demonstrated in two dimensions, and also in three dimensions for a limited range of angles. Now, Ma and Cui present a metamaterial-based cloaking device that can shield an object lying on the ground plane from all viewing angles at microwave frequencies.
- Hui Feng Ma
- & Tie Jun Cui
Ultrafast direct modulation of a single-mode photonic crystal nanocavity light-emitting diode