Results 51 to 60 of about 144,490 (294)
Compact Single-Mode Silicon Hybrid Rib/Strip Waveguide With Adiabatic Bends
IEEE Photonics Journal, 2011 We report a low-loss, hybrid silicon waveguide geometry that consists of straight rib sections with a propagation loss of 0.27 ± 0.012 dB/cm and compact photonic wire bends.
W. Bogaerts, S. K. Selvaraja
doaj +1 more source
Selective Transport and Mobility Edges in Quasi-1D Systems with a Stratified Correlated Disorder
, 2003 We present analytical results on transport properties of many-mode waveguides with randomly stratified disorder having long-range correlations. To describe such systems, the theory of 1D transport recently developed for a correlated disorder is ...
Bellman R. +3 more
core +1 more source
Physical origin of higher-order soliton fission in nanophotonic semiconductor waveguides [PDF]
, 2018 Supercontinuum generation in Kerr media has become a staple of nonlinear optics. It has been celebrated for advancing the understanding of soliton propagation as well as its many applications in a broad range of fields.
Ciret, Charles +5 more
core +5 more sources
New Journal of Physics, 2023 Abstract We provide a theoretical framework to mold time-modulated mechanical metamaterials with frequency conversion and wave-steering capabilities. To illustrate the concept, we initially focus on 1D lattices, whereby a sufficiently slow time-modulation of the stiffness is employed to convert the frequency content of impinging waves ...
Jonatha Santini, Emanuele Riva
openaire +4 more sources
Speckle‐Engineered Upconversion Amplification in Nanoemulsion‐Templated Hydrogel Microdomes
Advanced Functional Materials, EarlyView.Nanoemulsion‐confined PEGDA microdomes generate speckle‐like excitation fields that strongly amplify upconversion luminescence upon dehydration, enabling filter‐free visible readout with reversible on–off switching. DMD‐based lithography yields scalable, shape‐programmable arrays for moisture‐responsive displays and optical encryption.
Chaeyeong Ryu +13 more
wiley +1 more source
Tunable Plasmonic Band-Pass Filter with Dual Side-Coupled Circular Ring Resonators
Sensors, 2017 A wavelength band-pass filter with asymmetric dual circular ring resonators in a metal-insulator-metal (MIM) structure is proposed and numerically simulated.
Dongdong Liu +5 more
doaj +1 more source
General coupled mode theory in non-Hermitian waveguides
, 2015 In the presence of loss and gain, the coupled mode equation on describing the mode hybridization of various waveguides or cavities, or cavities coupled to waveguides becomes intrinsically non-Hermitian.
Chen, Yuntian, Xu, Jing
core +1 more source
Design and Fabrication of Silicon Photonic Crystal Optical Waveguides [PDF]
, 2000 We have designed and fabricated waveguides that incorporate two-dimensional (2-D) photonic crystal geometry for lateral confinement of light, and total internal reflection for vertical confinement.
Doll, Theodor +3 more
core +2 more sources
Light‐Actuated Fiber‐Climbing Inchworm Robot Toward Endoluminal Navigation
Advanced Functional Materials, EarlyView.A kirigami‐inspired soft inchworm robot harnesses optical energy from a customized side‐emitting optical fiber, guaranteeing its propulsion along the fiber body. The wavelength‐selective responsiveness of dye‐functionalized liquid crystal elastomers and the application of temporal illumination patterns enable sequential control of robot components. The
Antonio Lobosco +6 more
wiley +1 more source
Nonlinear theory of soliton-induced waveguides
, 1998 We develop a nonlinear theory of soliton-induced waveguides that describes a finite-amplitude probe beam guided by a spatial dark soliton in a saturable nonlinear medium.
Askar’yan +16 more
core +2 more sources