Results 11 to 20 of about 664,413 (294)
Leaky-wave metasurfaces for integrated photonics
Nature Nanotechnology, 2023 Metasurfaces have been rapidly advancing our command over the many degrees of freedom of light within compact, lightweight devices. However, so far, they have mostly been limited to manipulating light in free space. Grating couplers provide the opportunity of bridging far-field optical radiation and in-plane guided waves, and thus have become ...
Heqing Huang +6 more
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Surface Leaky Waves and Their Measurement [PDF]
1998 28th European Microwave Conference, 1998 A new approach to experimental identification of surface leaky waves on printed-circuit lines is presented in this paper. Active radiometry is used for field probing even in the near field zone. The measurement is adjusted into the X band. The method is demonstrated on the slotline.
Jan Zehentner +4 more
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MicromachinesPiezoelectric c-axis oriented zinc oxide (ZnO) thin films, from 1.8 up to 6.6 µm thick, have been grown by the radio frequency magnetron sputtering technique onto fused silica substrates.
Cinzia Caliendo +4 more
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2023 17th European Conference on Antennas and Propagation (EuCAP), 2023 AbstractLeaky waves are complex eigenmodes compatible with radiation in terms of their momentum, which can be supported by open waveguiding structures and can be effective at modeling radiative phenomena from such systems. Here, a “flatland” analog of leaky‐wave radiation is introduced to describe a novel mechanism for in‐plane radiation leakage that ...
Massimo Moccia +3 more
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Bessel-gauss beams through leaky waves: Focusing and diffractive properties [PDF]
, 2020 Bessel-Gauss beams have mainly been proposed in optics as a solution for reducing the on-axis intensity oscillations typical of Bessel beams. Previous investigations on Bessel-Gauss beams are based on a scalar theory in the paraxial approximation, and ...
Comite D. +5 more
core +2 more sources
Leaky Lamb Wave Radiation from a Waveguide Plate with Finite Width
Applied Sciences, 2020 In this paper, leaky Lamb wave radiation from a waveguide plate with finite width is investigated to gain a basic understanding of the radiation characteristics of the plate-type waveguide sensor.
Sang-Jin Park +2 more
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Study of leaky waves responsible for terahertz TE extroardinary transmission [PDF]
, 2019 Extraordinary transmission (ET) via transverse electric (TE) modes through dielectric-backed periodic subwavelength slit arrays is largely owed to the leakage of energy from waves guided by the structure.
Kuznetsov, Sergei A +11 more
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Edge and Notch Detection in a Plate Using Time Reversal Process of Leaky Lamb Waves
Applied Sciences, 2021 Leaky Lamb waves are proven effective to carry out nondestructive testing especially on parallel and immersed plates. To detect and localize defects in such a set, this work associates for the first time the topological energy method and leaky Lamb waves.
Jean-Christophe Vallée +4 more
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Visualization of leaky waves on planar transmission lines [PDF]
, 2004 This paper presents a visualization of leaky waves excited by delta-gap sources on planar transmission lines, namely the 2nd surface and space leaky modes on the slotline, and the dominant and surface leaky modes on the conductor-backed slotline.
Macháč, Jan +2 more
core +1 more source
Archives of Acoustics, 2018 Bone loss is one of the serious health issues in bedridden patients or young generation due to lack of physical activities. Mechanical forces are exerted on the bones through ground reaction forces, liquid loadings and by other contraction activities of ...
Vikas SHARMA, Satish KUMAR
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