Results 21 to 30 of about 86,732 (329)
Crystals, 2023 Surface-enhanced Raman scattering (SERS) spectroscopy is used to investigate a composition of wash swabs from the Cu-TiO2/TiO2-modified filters with disinfecting ability.
Hanna Bandarenka +11 more
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Plasmon Geometric Phase and Plasmon Hall Shift [PDF]
Physical Review X, 2018 The collective plasmonic modes of a metal comprise a pattern of charge density and tightly-bound electric fields that oscillate in lock-step to yield enhanced light-matter interaction. Here we show that metals with non-zero Hall conductivity host plasmons with a fine internal structure: they are characterized by a current density configuration that ...
Shi, Li-kun, Song, Justin Chien Wen
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Focusing Microwaves in the Fresnel Zone With a Cavity-Backed Holographic Metasurface
IEEE Access, 2018 We present the design and experimental demonstration of a cavity-backed, holographic metasurface capable of focusing microwaves in the Fresnel zone. The circular cavity consists of two stacked plates: microwaves are injected into the bottom plate via a ...
Vinay R. Gowda +4 more
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2D Ray Tracing Analysis of a Dynamic Metasurface Antenna as a Smart Motion Detector
IEEE Access, 2019 We present a ray-tracing analysis of a smart motion detector based on a dynamically reconfigurable metasurface antenna (DMA). A DMA consists of an array of metamaterial radiators excited by a single-port waveguide or cavity.
Oren S. Mizrahi +4 more
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IEEE Access, 2017 Multiple-input-multiple-output (MIMO) radar image processing presents problems difficult to address by modifying conventional monostatic radar methods as Fourier range migration. When the distance between the transmitter and receiver is comparable to the
Daniel L. Marks +2 more
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Group-IV midinfrared plasmonics [PDF]
, 2015 The use of heavily doped semiconductors to achieve plasma frequencies in the mid-IR has been recently proposed as a promising way to obtain high-quality and tunable plasmonic materials. We introduce a plasmonic platform based on epitaxial n-type Ge grown
Baldassarre, Leonetta +11 more
core +4 more sources
Nanomaterials, 2020 Practical implementation of many quantum information and sensing technologies relies on the ability to efficiently generate and manipulate single-photon photons under ambient conditions. Color centers in diamond, such as the silicon-vacancy (SiV) center,
Igor A. Khramtsov, Dmitry Yu. Fedyanin
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Software Calibration of a Frequency-Diverse, Multistatic, Computational Imaging System
IEEE Access, 2016 We demonstrate a technique for calibrating a frequency-diverse, multistatic, computational imaging system. A frequency-diverse aperture enables an image to be reconstructed primarily from a set of scattered field measurements taken over a band of ...
Okan Yurduseven +5 more
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Hybrid Electro-Optical Pumping of Active Plasmonic Nanostructures
Nanomaterials, 2020 Surface plasmon polaritons (SPPs) offer a unique opportunity to overcome the diffraction limit of light. However, this opportunity comes at the cost of the strong absorption of the SPP field in a metal, which unavoidably limits the SPP propagation length
Andrey A. Vyshnevyy, Dmitry Yu. Fedyanin
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