Results 31 to 40 of about 106,196 (320)
Electrically tunable harmonics in time-modulated metasurfaces for wavefront engineering
New Journal of Physics, 2018 Modulation of metasurfaces in time gives rise to several exotic space–time scattering phenomena by breaking the reciprocity constraint and generation of higher-order frequency harmonics. We introduce a new design paradigm for time-modulated metasurfaces,
Mohammad Mahdi Salary +2 more
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Applied Sciences, 2022 Recently, layered-beam metamaterial structures have been gaining popularity in a variety of engineering applications including energy harvesting and vibration isolation.
Winner Anigbogu, Hamzeh Bardaweel
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The Applications of Metamaterials [PDF]
International Journal of Antennas and Propagation, 2015 1State Key Laboratory of Millimeter Waves, Southeast University, Nanjing 210096, China 2School of Engineering and Physical Sciences, Heriot-Watt University, Edinburgh EH14 4AS, UK 3Institute of Microwave Techniques, University of Ulm, 89069 Ulm, Germany 4State Key Lab of Modern Optical Instrumentation, Centre for Optical and Electromagnetic Research ...
Hui Feng Ma +4 more
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Tunable Broadband Transparency of Macroscopic Quantum Superconducting Metamaterials [PDF]
, 2015 Narrow-band invisibility in an otherwise opaque medium has been achieved by electromagnetically induced transparency (EIT) in atomic systems. The quantum EIT behaviour can be classically mimicked by specially engineered metamaterials via carefully ...
Anlage, Steven. M. +3 more
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Optica, 2020 We report the theoretical prediction and experimental realization of the optical phenomenon of “ballistic resonance.” This resonance, resulting from the interplay between free charge motion in confining geometries and periodic driving electromagnetic fields, can be utilized to achieve negative permittivity at frequencies well above the bulk plasma ...
Kun Li +6 more
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Applied Physics Letters, 2009 Nanostructured metamaterials, especially arrays of metallic nanoparticles, which sustain the excitation of localized plasmon polaritons, provide excellent opportunities to mold the flow of light in the linear regime. We suggest a metamaterial structure whose properties are determined not only by its inner geometry but also by its entire shape.
Rockstuhl, C. +3 more
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IEEE Access, 2021 A deep learning model trained under a specific operating condition of the gearbox often experiences an overfitting problem, which makes it impossible to diagnose faults under different operating conditions.
Jong Moon Ha, Byeng D. Youn
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Journal of Optics, 2010 Optical space in metamaterials may be engineered to mimic the landscape of a multidimensional Universe which has regions of different topology and different effective dimensionality. The "metamaterial landscape" may include regions in which one or two spatial dimensions are compactified.
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Incandescent temporal metamaterials
Nature Communications, 2023 AbstractRegarded as a promising alternative to spatially shaping matter, time-varying media can be seized to control and manipulate wave phenomena, including thermal radiation. Here, based upon the framework of macroscopic quantum electrodynamics, we elaborate a comprehensive quantum theoretical formulation that lies the basis for investigating thermal
J. Enrique Vázquez-Lozano +1 more
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Results in Physics, 2019 We present terahertz (THz) metamaterial with multi-configurations, which are composed of H-shaped, II-shaped, and IHI-shaped configurations, respectively.
Xiao Zhang, Yu-Sheng Lin
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