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The Transition Between Reactive and Radiative Regimes for Leaky Modes in Planar Waveguides Based on Homogenized Partially Reflecting Surfaces [PDF]
IEEE Transactions on Microwave Theory and Techniques, 2020 The gradual transition from a reactive to a radiative regime is studied for leaky modes supported by multilayered planar open waveguides. The so-called leaky cutoff condition, i.e., the frequency for which the leaky phase constant $eta $ equals the leaky
Walter Fuscaldo +2 more
exaly +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
doaj +1 more source
Nanophotonics, 2021 The controlled extraction of light from diamond optical color centers is essential for their practical prospective applications as single photon sources in quantum communications and as biomedical sensors in biosensing.
Fait Jan +5 more
doaj +1 more source
Angular Momentum of Leaky Modes in Hollow-Core Fibers
Fibers, 2022 It is known that angular momentum (AM) is an important characteristic of light, which can be separated into the spin (SAM) and orbital parts (OAM). The dynamical properties of the spin and orbital angular momentums are determined by the polarization and ...
Grigory Alagashev +3 more
doaj +1 more source
Leaky waves in planar dielectric waveguide
Discrete and Continuous Models and Applied Computational Science, 2019 A new analytical and numerical solution of the electrodynamic waveguide problem for leaky modes of a planar dielectric symmetric waveguide is proposed.
Dmitriy V. Divakov +4 more
doaj +1 more source
Leaky modes in low-damping ε-near-zero slabs [PDF]
, 2013 We present a complex-mode analysis of an ε-near-zero metamaterial slab made of chains of core-shell nanocylinders. The mesoscopic nature of the slab induces narrowband, strong, effective nonlocal response mediated by leaky modes.
De Ceglia D. +4 more
core +2 more sources
Spatial coherence filtering of normal incidence light through leaky mode engineering
AIP Advances, 2022 Filtering light by coherence by metasurfaces would enable compact, integrable coherence filters. A recent such proposal centered on a metasurface of zigzags.
Hang Li +9 more
doaj +1 more source
Influence of Subwavelength Grating Asymmetry on Long-Wavelength Infrared Transmittance Filters
IEEE Photonics Journal, 2018 Subwavelength dielectric gratings provide a means of narrowband spectral filtering by coupling to quasi-guided leaky modes, providing a high reflectivity background and narrowband transmittance via Fano resonance behavior.
Michael Barrow +2 more
doaj +1 more source
Photonic-plasmonic mode coupling in nanopillar Ge-on-Si PIN photodiodes
Scientific Reports, 2021 Incorporating group IV photonic nanostructures within active top-illuminated photonic devices often requires light-transmissive contact schemes. In this context, plasmonic nanoapertures in metallic films can not only be realized using CMOS compatible ...
Lion Augel +5 more
doaj +1 more source
Backside emission leaky-mode modulators
Optics Express, 2017 We report on an advancement to leaky-mode modulators that allows for backside emission from the device. This is accomplished by adding a high spatial frequency surface relief grating (~300 nm period) to the backside of the modulator. The outcome being a theoretical arbitrary increase in usable output aperture, at the cost of angular deflection.
Stephen, McLaughlin +3 more
openaire +2 more sources