Results 11 to 20 of about 398 (215)
Anisotropic leaky-like perturbation with subwavelength gratings enables zero crosstalk
Light: Science & Applications, 2023 Electromagnetic coupling via an evanescent field or radiative wave is a primary characteristic of light, allowing optical signal/power transfer in a photonic circuit but limiting integration density. A leaky mode, which combines both evanescent field and
Md Faiyaz Kabir +5 more
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Wide Band Periodic 2D Leaky-Wave Antenna for Millimeter-Wave Application
IEEE Access, 2023 A wideband periodic leaky-wave antenna (LWA) is proposed in this paper. By using lossy dielectric material inside the wedge-like guide as medium for wave propagation, a leaky mode is excited and results in widening the bandwidth.
Abdullah Attar +2 more
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Design and fabrication of an all-dielectric grating with top-hat high diffraction efficiency over a broad spectral range [PDF]
Journal of the European Optical Society-Rapid Publications, 2007 Between 98% and 100% flat top efficiency –1st order TE diffraction over a 40 nm wavelength range centered at 800 nm can be obtained by an all-dielectric grating structure where the corrugation is etched in a high index layer unlike in the state of the ...
Lyndin N. +4 more
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Large Mode Area Single Mode Fiber with a Twisted Polygon-Shaped Core
Photonics, 2022 We present numerical studies on twisted polygon-shaped core fibers for achieving single mode operation with a large mode area propagation in this paper. These large mode area fibers can achieve single mode operation due to twisting-induced high losses to
Kexiong Sun +4 more
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IEEE Access, 2023 In order to directly observe the conversion between guided-wave modes and leaky-wave modes in a periodic structure, quadrilateral periodic metal diaphragms arranged in two ways on metal surfaces were analyzed.
Chia Ho Wu +13 more
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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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Improved Design of Uniform SIW Leaky Wave Antenna With Suppression of Unwanted Mode
IEEE Access, 2021 In this paper, periodic perturbations are employed on the broad wall of a substrate integrated waveguide (SIW) long slot leaky-wave antenna (LWA) to eliminate the excited unwanted mode.
Amin Mahmoodi Malekshah +2 more
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Investigation of the Leaky-Wave Characteristics of a Cylindrical Dielectric Rod Using the Coefficient Matrix of the System of Characteristic Equations and Davidenko’s Method [PDF]
Journal of Electromagnetic Engineering and Science, 2021 An open dielectric waveguide includes both guided propagating modes within the waveguide and radiating and evanescent modes that propagate transversely outside the waveguide.
Ersoy Kelebekler
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Considerations of Curvature for a Near-Eye Holo-Video Display
Applied Sciences, 2020 Most 3D augmented reality, near-eye displays suffer from a low field of view. Leaky-mode lithium niobate devices are often used to steer, multiplex, or otherwise control the path of light in a system.
J. Christopher Leach, Daniel Smalley
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IET Microwaves, Antennas & Propagation, 2021 The dielectric‐coated impedance cylinder configuration is investigated thoroughly with respect to the space‐wave, leaky‐wave and creeping‐wave excitations for all source polarizations.
Mahesh Singh +2 more
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