Results 31 to 40 of about 2,387,223 (285)
American Journal of Physics, 2000 We present a brief classical discussion of a process to reduce the group velocity of an electromagnetic pulse by many orders of magnitude.
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High coupling efficiency to a low dispersion slow light-supporting photonic crystal waveguide [PDF]
Journal of the European Optical Society-Rapid Publications, 2013 In this paper, we design a waveguide on photonic crystal slab for propagation of low-dispersion slow light. By shifting the air holes adjacent to the waveguide, we obtain a photonic crystal waveguide with a group index of 25 in 25 nm bandwidth which ...
Moghaddam M. Khatibi +2 more
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IEEE Photonics Journal, 2012 A photonic free-electron laser (pFEL) produces coherent Cerenkov radiation from a set of parallel electron beams streaming through a photonic crystal. The function of the crystal is to slow down the phase velocity of a copropagating electromagnetic wave,
P. J. M. van der Slot +4 more
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Materials Research Express, 2020 We experimentally studied a series of terahertz (THz) metamaterials with asymmetric resonator structures made from superconducting niobium nitride or gold films.
Siyu Duan +11 more
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Nanomaterials, 2020 Slow light with adequate low group velocity and wide bandwidth with a flat band of the zero-dispersion area were investigated. High buffering capabilities were obtained in a silicon-polymer coupled-slot slab photonic crystal waveguide (SP-CS-SPCW) with ...
Israa Abood +2 more
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An extremely large group index via electromagnetically induced transparency in metamaterials [PDF]
Journal of the European Optical Society-Rapid Publications, 2014 We numerically demonstrate a planar design of a metamaterial exhibiting electromagnetically induced transparency at gigahertz frequencies. The design is based on the coupling of two oppositely oriented semi split-rings in the same plane.
Sayahian Jahromi A., Askari M.
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Tuning Multiple Fano Resonances for On-Chip Sensors in a Plasmonic System
Sensors, 2019 This paper proposed a plasmonic resonator system, consisting of a metal-insulator-metal structure and two stubs, and a Fano resonance arose in its transmittance, which resulted from the coupling between the two stubs.
Shilin Yu +3 more
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Theory of a Slow-Light Catastrophe [PDF]
, 2001 In diffraction catastrophes such as the rainbow the wave nature of light resolves ray singularities and draws delicate interference patterns. In quantum catastrophes such as the black hole the quantum nature of light resolves wave singularities and ...
A. B. Matsko +40 more
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Limits of slow-light in photonic crystals [PDF]
, 2008 While ideal photonic crystals would support modes with a vanishing group velocity, state-of-the art structures have still only provided a slow-down by roughly two orders of magnitude.
Mortensen, Niels Asger +2 more
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Slow light enabled wavelength demultiplexing [PDF]
2016 18th International Conference on Transparent Optical Networks (ICTON), 2016 Photonic crystal waveguides supporting band gap guided modes hold great potential to tailor the group velocity of propagating light. We propose and explore different wavelength demultiplexer design approaches that utilize slow light concept. By altering the dielectric filling factors of each waveguide segment, one can show that different
Hayran, Zeki +5 more
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