Results 111 to 120 of about 1,351,447 (284)
Nano-Management of Linear Properties of Photonic Crystal Fibers
Communications, 2014 The array of nanometer air holes positioned in the core can significantly modify the properties of guided mode in photonic crystal fiber. Changing geometrical properties of nanometer holes enables tuning of fiber dispersion and the effective mode area ...
Daniel Kacik +2 more
doaj +1 more source
Calculation of Bandwidth of Multimode Step-Index Polymer Photonic Crystal Fibers. [PDF]
Polymers (Basel), 2021 Drljača B +6 more
europepmc +1 more source
Engineering Slow‐Carrier Interfacial Recombination Enables Tailored Spectral Response
Advanced Science, EarlyView.This work demonstrates that weak‐drift slow carriers are preferentially captured at generic semiconductor surfaces/interfaces and recombine. This process is manipulated to achieve tailored spectral response. A tens of µm‐wide depletion region is created to observe surface collection rates for photocarriers generated at different positions.
Yibo Zhang +5 more
wiley +1 more source
Modeling large air fraction holey optical fibers [PDF]
, 2000 We develop a modal decomposition approach to solve the full vector wave equation for holey optical fibers (HF). This model can be used to explore the modal properties of a wide range of HFs, including those with large air holes. The optical properties of
Bennett, P.J. +3 more
core +1 more source
Design of Compact and Broadband Polarization Beam Splitters Based on Surface Plasmonic Resonance in Photonic Crystal Fibers. [PDF]
Micromachines (Basel), 2022 Mei C, Wu Y, Yuan J, Qiu S, Zhou X.
europepmc +1 more source
Advanced Science, EarlyView.Planar Ag/MAPbI3 thin single‐crystal halide perovskite devices show ultralow dark current and optically tunable threshold switching. Illumination enhances the polarity‐dependent hysteresis and shifts the switching voltage, whereas temperature‐dependent measurements reveal thermally activated, contact‐limited transport, underscoring the central role of ...
Ofelia Durante +16 more
wiley +1 more source
Thermally Tunable Orbital Angular Momentum Mode Generator Based on Dual-Core Photonic Crystal Fibers. [PDF]
Nanomaterials (Basel), 2021 Zhang L +6 more
europepmc +1 more source
Advanced Science, EarlyView.The cathode of proton exchange membrane water electrolyzers remains a poorly understood region despite its importance for hydrogen purity and operational safety. Operando synchrotron X‐ray radiography directly visualizes liquid water behavior and uncovers a transition from continuous to pulsating transport, providing new insight into multiphase ...
Wataru Yoshimune +2 more
wiley +1 more source
Geometry‐Regulated Electrode‐Wide Nucleation Patterns in Aqueous Zinc Anodes
Advanced Science, EarlyView.Laser‐ablated 3D hole patterning enables geometry‐driven control of Zn deposition in aqueous batteries. The hole opening ratio (HOR) governs electrode‐wide nucleation patterns by regulating the spatial distribution of nucleation sites and the evolution of early‐stage Zn deposits.
Seyoung Han +4 more
wiley +1 more source
A New Approach for Representing Photonic Crystal Fiber Index Profile to Determine their Optical Characteristics [PDF]
Iraqi Journal for Electrical and Electronic Engineering, 2015 - A genetic algorithm is implemented to represent the different shapes of Photonic Crystal Fiber (PCF) profile; this is due to the fact that such fibers have special structure. A novel approach is suggested which differs from the usual fibers.
Maan M. Shaker +2 more
doaj