Search Results - "Fedotov, Vassili A."

On the role of longitudinal currents in radiating systems of charges by Nemkov, Nikita A., Fedotov, Vassili A.

“…The time derivative of a charge density is linked to a current density by the continuity equation. However, it features only the longitudinal part of a current…”
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Dielectric Metamaterials with Toroidal Dipolar Response by Basharin, Alexey A., Kafesaki, Maria, Economou, Eleftherios N., Soukoulis, Costas M., Fedotov, Vassili A., Savinov, Vassili, Zheludev, Nikolay I.

“…Toroidal multipoles are the terms missing in the standard multipole expansion; they are usually overlooked due to their relatively weak coupling to the…”
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Specular optical activity of achiral metasurfaces by Plum, Eric, Fedotov, Vassili A., Zheludev, Nikolay I.

“…Optical activity in 3D-chiral media in the form of circular dichroism and birefringence is a fundamental phenomenon that serves as evidence of life forms and…”
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Observing and controlling a Tamm plasmon at the interface with a metasurface by Buchnev, Oleksandr, Belosludtsev, Alexandr, Reshetnyak, Victor, Evans, Dean R., Fedotov, Vassili A.

“…We demonstrate experimentally that Tamm plasmons in the near infrared can be supported by a dielectric mirror interfaced with a metasurface, a discontinuous…”
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Anomalous resonance frequency shift in liquid crystal-loaded THz metamaterials by Perivolari, Eleni, Fedotov, Vassili A., Parka, Janusz, Kaczmarek, Malgosia, Apostolopoulos, Vasilis

“…Babinet complementary patterns of a spectrally tunable metamaterial incorporating a nematic liquid crystal is normally assumed to exhibit the same tuning…”
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Low-loss terahertz superconducting plasmonics by Tsiatmas, Anagnostis, Fedotov, Vassili A, García de Abajo, F Javier, Zheludev, Nikolay I

“…In the plasmonic regime, an electromagnetic wave bounded to the surface of a conductor can be confined to a region much smaller than its wavelength in free…”
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Observation of a High-Energy Tamm Plasmon State in the Near-IR Region by Buchnev, Oleksandr, Belosludtsev, Alexandr, Fedotov, Vassili A.

“…We report on the experimental observation of a Tamm plasmon state in the near-IR region characterized by an anomalously high energy level located in the upper…”
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All-optical switching of liquid crystals at terahertz frequencies enabled by metamaterials by Beddoes, Ben, Perivolari, Eleni, Kaczmarek, Malgosia, Apostolopoulos, Vasilis, Fedotov, Vassili A

“…Nematic liquid crystals integrated with metallic resonators (metamaterials) are intriguing hybrid systems, which not only offer added optical functionalities,…”
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Electrically Controlled Nanostructured Metasurface Loaded with Liquid Crystal: Toward Multifunctional Photonic Switch by Buchnev, Oleksandr, Podoliak, Nina, Kaczmarek, Malgosia, Zheludev, Nikolay I., Fedotov, Vassili A.

“…Achieving an efficient spectral tuning in liquid‐crystal (LC)‐loaded active photonic metamaterials has so far remained a challenge due to strong surface…”
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Decay rate enhancement of diamond NV-centers on diamond thin films by Li, Hao, Ou, Jun-Yu, Fedotov, Vassili A., Papasimakis, Nikitas

“…We demonstrate experimentally two-fold enhancement of the decay rate of NV° centers on diamond/Si substrate as opposed to a bare Si substrate. We link the…”
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Controlling Stiction in Nano-Electro-Mechanical Systems Using Liquid Crystals by Buchnev, Oleksandr, Podoliak, Nina, Frank, Thomas, Kaczmarek, Malgosia, Jiang, Liudi, Fedotov, Vassili A

“…Stiction is one of the major reliability issues limiting practical application of nano-electro-mechanical systems (NEMS), an emerging device technology that…”
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Toroidal Lasing Spaser by Huang, Yao-Wei, Chen, Wei Ting, Wu, Pin Chieh, Fedotov, Vassili A., Zheludev, Nikolay I., Tsai, Din Ping

“…Toroidal shapes are often found in bio-molecules, viruses, proteins and fats, but only recently it was proved experimentally that toroidal structures can…”
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Liquid crystal-filled meta-pixel with switchable asymmetric reflectance and transmittance by Buchnev, Oleksandr, Podoliak, Nina, Fedotov, Vassili A.

“…We fabricated and characterized a meta-pixel – metamaterial-based active optical device incorporating a twisted nematic liquid crystal cell. The meta-pixel…”
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Electromagnetic wave analogue of an electronic diode by Shadrivov, Ilya V, Fedotov, Vassili A, Powell, David A, Kivshar, Yuri S, Zheludev, Nikolay I

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Nanohole Array as a Lens by Huang, Fu Min, Kao, Tsung Sheng, Fedotov, Vassili A, Chen, Yifang, Zheludev, Nikolay I

“…We demonstrate that a quasi-crystal array of nanoholes in a metal screen can mimic a function of the lens: one-to-one imaging of a point source located a few…”
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Point-dipole approximation for small systems of strongly coupled radiating nanorods by Watson, Derek W., Jenkins, Stewart D., Fedotov, Vassili A., Ruostekoski, Janne

“…Systems of closely-spaced resonators can be strongly coupled by interactions mediated by scattered electromagnetic fields. In large systems the resulting…”
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Wavevector Selective Metasurfaces and Tunnel Vision Filters by Fedotov, Vassili A, Wallauer, Jan, Walther, Markus, Perino, Mauro, Papasimakis, Nikitas, Zheludev, Nikolay I

“…Metasurfaces offer unprecedented flexibility in the design and control of light propagation, replacing bulk optical components and exhibiting exotic optical…”
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Metamaterials: Electrically Controlled Nanostructured Metasurface Loaded with Liquid Crystal: Toward Multifunctional Photonic Switch (Advanced Optical Materials 5/2015) by Buchnev, Oleksandr, Podoliak, Nina, Kaczmarek, Malgosia, Zheludev, Nikolay I., Fedotov, Vassili A.

“…On page 674, O. Buchnev, V. A. Fedotov, and co‐workers at the University of Southampton demonstrate an active, nanostructured, planar metamaterial…”
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Light-Induced Switching between Structural Forms with Different Optical Properties in a Single Gallium Nanoparticulate by Soares, Bruno F, MacDonald, Kevin F, Fedotov, Vassili A, Zheludev, Nikolay I

“…In a single gallium nanoparticulate, self-assembled (from an atomic beam) in a nanoaperture at the tip of a tapered optical fiber, we have observed reversible…”
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Electrodynamics beyond common multipoles by Fedotov, Vassili A.

“…Multipole expansion is one of the main analytical tools of the modern theoretical physics. In electrodynamics it allows one to describe the radiation…”
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