Results 31 to 40 of about 453,061 (295)
Labyrinthine Structure with Subwavelength and Broadband Sound Insulation [PDF]
Shock and Vibration, 2020 In this text, the combination of spiral structure and zigzag channels is introduced to design labyrinthine structures, in which sound waves can propagate alternately in the clockwise and counterclockwise directions. Finite element method and S-parameter retrieval method are used to calculate band structures, effective parameters, and transmission ...
Heng Jiang +6 more
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Large-Angle Color Dispersion Based on 2-D Hexagonal Subwavelength Holographic Gratings
IEEE Photonics Journal, 2013 This paper presents large-angle color dispersion using a holographically fabricated 2-D subwavelength transmission grating. A dispersion angle of 68° is observed within continuous spectrum dispersion from 360 to 700 nm at an incident angle of 20 &#
Ya-Yun Lo +4 more
doaj +1 more source
Keeping Good Sensing Performance of Metal–Dielectric–Metal Waveguides After Coating Treatment
IEEE Photonics Journal, 2017 Good sensing performance is observed in metal-dielectric-metal (MDM) waveguides in recent research. However, Ag will be oxidized in air. The oxidization layer makes the sensing performance not as high as before. Plating an SiO2 film on the surface of the
Zhihui He +5 more
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Subwavelength metamaterial engineering for silicon photonics [PDF]
, 2017 Waveguides structured at the subwavelength scale frustrate di raction and behave as optical metamaterials with controllable refractive index. These structures have found widespread applications in silicon photonics, ranging from sub-decibel e ciency ...
Cheben, Pavel +14 more
core +1 more source
A Slot-Based Surface Plasmon-Polariton Waveguide With Long-Range Propagation and Superconfinement
IEEE Photonics Journal, 2012 A full-vector spectral element method (SEM) is applied to model and simulate surface plasmon-polariton (SPP) waveguides. Gauss-Lobatto-Legendre (GLL) polynomials are used to construct higher-order basis functions to achieve spectral accuracy.
G. X. Cai +4 more
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All-dielectric Mie-resonant metaphotonics
Comptes Rendus. Physique, 2020 All-dielectric subwavelength structures made of high-refractive-index materials combine a unique set of advantages in comparison with their plasmonic counterparts.
Bonod, Nicolas, Kivshar, Yuri
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Tunable Flat-Top Filtering Response in Cascaded Resonant Waveguide Gratings
IEEE Photonics Journal, 2021 The applicability of resonant waveguide grating (RWG)-based structures as filters to control the spectral response in an optical communication system is investigated.
Jinhua Hu +5 more
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Subwavelength localized modes for acoustic waves in bubbly crystals with a defect [PDF]
SIAM J. Appl. Math., 78(6), 3316-3335, 2018, 2018 The ability to control wave propagation is of fundamental interest in many areas of physics. Photonic and phononic crystals have proved very useful for this purpose but, because they are based on Bragg interference, these artificial media require structures with large dimensions. In [Ammari et al., Subwavelength phononic bandgap opening in bubbly media,
arxiv +1 more source
Subwavelength Grating Structures in Silicon‐on‐Insulator Waveguides [PDF]
Advances in Optical Technologies, 2008 First implementations of subwavelength gratings (SWGs) in silicon‐on‐insulator (SOI) waveguides are discussed and demonstrated by experiment and simulations. The subwavelength effect is exploited for making antireflective and highly reflective waveguide facets as well as efficient fiber‐chip coupling structures.
Schmid, Jens +9 more
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Novel Quadruple-Band Microwave Metamaterial Absorber
IEEE Photonics Journal, 2015 In this paper, we report the design, analysis, and simulation of a novel quadrupleband metamaterial absorber at microwave frequencies. The absorber is composed of delicate periodic patterned structures and a metallic background plane, which are separated
Nan Wang +6 more
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