Results 81 to 90 of about 1,800,404 (287)
Coupling terahertz wave into a plasmonic waveguide by using two ribbon waveguides
Results in Physics, 2020 We proposed the design of coupling terahertz wave into a plasmonic waveguide via using two alumina ribbon waveguides. The dispersion relation of fundamental alumina waveguide mode shows that it has intersections with plasmonic modes, resulting in the ...
Wenwei Shen +4 more
doaj +1 more source
NONLINEAR EFFECTS IN WAVEGUIDE DEVICES
Le Journal de Physique Colloques, 1988 All-optical switching and routing of light in fibers and waveguides has the potential of handling optical signals at ul rahigh speed. By using very rapid electronic nonlinearities in transparent materials, extremely fast switching free of thermal problems could be obtained. The guided wave environment reduces the peak power requirements.
Silberberg, Y., Sfez, B.
openaire +1 more source
Liquid‐Crystal‐Based Reconfigurable Intelligent Surface for 7 GHz Mobile Communication
Advanced Materials Technologies, EarlyView.The glass‐based liquid‐crystal reconfigurable intelligent surface (LC‐RIS) integrates active‐matrix driving and blind‐greedy phase optimization within a 5G‐NR OFDM framework. This enables continuously tunable and autonomous enhancement of wireless coverage. Leveraging the transparency and manufacturability of liquid crystal panels, it is ideally suited
Tien‐Lun Ting +5 more
wiley +1 more source
Magneto-optical non-reciprocal devices in silicon photonics
Science and Technology of Advanced Materials, 2014 Silicon waveguide optical non-reciprocal devices based on the magneto-optical effect are reviewed. The non-reciprocal phase shift caused by the first-order magneto-optical effect is effective in realizing optical non-reciprocal devices in silicon ...
Yuya Shoji , Tetsuya Mizumoto
doaj +1 more source
On‐Chip Photonic Neural Network Architectures
Advanced Optical Materials, EarlyView.This review presents a comprehensive overview of on‐chip photonic neural network architectures, covering key photonic building blocks, representative network types, and emerging applications. Recent advances, implementation challenges, and future directions are examined, highlighting the potential of integrated photonics to enable ultrafast, energy ...
Seokjin Hong +7 more
wiley +1 more source
Clearing a path for light through non-Hermitian media
NanophotonicsThe performance of all active photonic devices today is greatly limited by loss. Here, we show that one can engineer a low loss path in a metal-clad lossy multi-mode waveguide while simultaneously achieving high-performance active photonic devices.
Dave Utsav D. +4 more
doaj +1 more source
IEEE Photonics Journal, 2013 We describe a Si-Ge-silica monolithic integration platform for telecommunications applications. The monolithic integration process features low-temperature silica film deposition by electron-cyclotron-resonance chemical vapor deposition to prevent ...
Tatsurou Hiraki +8 more
doaj +1 more source
Advanced Optical Materials, EarlyView.Superfluorescence is a cooperative emission process not scaling with sample volume. Amplified spontaneous emission is a collective process scaling with sample volume and is enhanced by waveguiding. Both manifest in a narrow emission peak. Choosing the right substrate suppresses waveguiding and demonstrates that the emission feature observed in PEA ...
Pirmin Tischler +10 more
wiley +1 more source
Substrate-Integrated Folded Waveguide Slot Antenna [PDF]
, 2005 In recent years a number of researchers have proposed novel techniques for fabricating rectangular waveguide using microwave integrated circuit techniques.
Sanz-Izquierdo, Benito +4 more
core +1 more source
Advanced Optical Materials, EarlyView.Nonlinear waveguides are fabricated via an all‐fiber‐based multiphoton polymerization approach incorporating upconversion nanoparticles (UCNPs), which enable both multiphoton absorption at telecommunication wavelengths and nonlinear saturable absorption operation.
Bowon Ryu +7 more
wiley +1 more source