Results 51 to 60 of about 71,755 (196)
Beam Steerable Half Mode SIW Leaky-Wave Antenna Using FPMS
IEEE Journal of Microwaves, 2023 A novel leaky wave antenna (LWA) with integrated field-programmable microwave substrate (FPMS) unit cells is presented in this article. The proposed antenna consists of a Half Mode Substrate Waveguide (HMSIW), loaded with cross-shaped slots to generate ...
Shahinshah Ali +2 more
doaj +1 more source
Band dynamics of leaky-mode photonic lattices
Optics Express, 2019 External waves incident on a periodic metamaterial lattice couple to it at frequencies corresponding to the leaky, or second, stop band. The resulting leaky-mode or guided-mode resonance effects are useful in device design and spectral manipulation. Indeed, some of the most important properties of metamaterials are associated with the leaky stopband ...
Sun-Goo, Lee, Robert, Magnusson
openaire +2 more sources
Mixer-Duplexer-Antenna Leaky-Wave System Based on Periodic Space-Time Modulation
, 2016 We present a mixer-duplexer-antenna leaky-wave system based on periodic space-time modulation. This system operates as a full transceiver, where the upconversion and downconversion mixing operations are accomplished via space-time transitions, the ...
Caloz, Christophe, Taravati, Sajjad
core +1 more source
IEEE Photonics Journal, 2020 Resonant excitation analysis on asymmetrical lateral leakage of light in the finite zero-contrast grating (ZCG) mirror is demonstrated, and the size effect of the excited source is investigated.
Tian Sang +5 more
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Mode Bifurcation and Fold Points of Complex Dispersion Curves for the Metamaterial Goubau Line
, 2009 In this paper the complex dispersion curves of the four lowest-order transverse magnetic modes of a dielectric Goubau line ($\epsilon>0, \mu>0$) are compared with those of a dispersive metamaterial Goubau line.
D. R. Bowling +9 more
core +1 more source
Optomechanics in an ultrahigh-Q two-dimensional photonic crystal cavity [PDF]
, 2010 We demonstrate an ultrahigh-Q slotted two-dimensional photonic crystal cavity capable of obtaining strong interaction between the internal light field and the mechanical motion of the slotted structure.
Alegre, Thiago P. Mayer +3 more
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Advances in the research of seismic-wave leaky modes
地球与行星物理论评When seismic waves propagate in layered structures, dispersion phenomena occur. Based on the characteristics of dispersion curves, underground velocity structures can be estimated.
Caiwang Shi, Zhengbo Li, Xiaofei Chen
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Bend-resistant leaky multi-trench fiber with large mode area and single-mode operation. [PDF]
PLoS ONE, 2018 A novel structure of modified multi-trench fiber (MTF) with characteristics of bend-resistance and large mode-area is proposed. In this structure, each low refractive-index trench of traditional MTF is broken by two gaps up and down.
Shaoshuo Ma +6 more
doaj +1 more source
IEEE Photonics Journal, 2013 We numerically investigated the effect of an optically ultrathin top metal grating in an absorber structure composed of an amorphous silicon (a-Si) thin film and a metal reflector for efficient solar cells.
Sangjun Lee, Sangin Kim
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, 2018 We adapt the resonant state expansion to optical fibers such as capillary and photonic crystal fibers. As a key requirement of the resonant state expansion and any related perturbative approach, we derive the correct analytical normalization for all ...
Allayarov, I. +3 more
core +1 more source