Results 61 to 70 of about 91,943 (294)
Topological Filters for Solitons in Coupled Waveguides Networks
, 2005 We study the propagation of discrete solitons on chains of coupled optical waveguides where finite networks of waveguides are inserted at some points.
A. C. Scott +10 more
core +2 more sources
Fundamental limitations to gain enhancement in periodic media and waveguides [PDF]
, 2012 A common strategy to compensate for losses in optical nanostructures is to add gain material in the system. By exploiting slow-light effects it is expected that the gain may be enhanced beyond its bulk value.
Grgić, Jure +6 more
core +2 more sources
Optical Waveguide Enhanced Photovoltaics
Optics Express, 2008 Enhanced light to electric power conversion efficiency of photovoltaic cells with a low absorbance was achieved using waveguide integration. We present a proof of concept using a very thin dye-sensitized solar cell which absorbed only a small fraction of the light at normal incidence.
Sven, Rühle +3 more
openaire +2 more sources
Role of the Recombination Zone in Organic Light‐Emitting Devices
Advanced Materials, EarlyView.This review summarizes the critical role of the recombination zone in organic light‐emitting diodes (OLEDs). We highlight that broadening the recombination zone in OLEDs based on emissive layers with balanced charge transport and high photoluminescence quantum yields provides a promising route toward achieving both long operational lifetime and high ...
Yungui Li, Karl Leo
wiley +1 more source
Generation of phonons from electrostriction in small-core optical waveguides
AIP Advances, 2013 We investigate the generation of acoustic phonons from electrostriction of optical waves in small core waveguides. We specifically consider simple step-index strip waveguides composed of silica or silicon in air, with sub-micron lateral dimensions.
Vincent Laude, Jean-Charles Beugnot
doaj +1 more source
Multimode waveguides of Photodefinable epoxy for optical backplane applications [PDF]
, 2006 We developed photodefined, multimode-fiber compatible waveguides based on epoxies. These waveguides will be embedded in backplane PCB’s for optical interconnect applications using 850 nm VCSELs as light sources.
Diemeer, M.B.J. +3 more
core +1 more source
Advanced Materials, EarlyView.We report a multifunctional tapered optical fiber integrating a conformal micro‐resistance temperature detector (µRTD) for local, real‐time thermometry during optical stimulation. The platform combines light‐delivery and temperature sensing within a minimally invasive footprint, enabling detection of sub‐degree cortical heating under representative ...
Antonio Balena +6 more
wiley +1 more source
Type I phase matching in thin film of lithium niobate on insulator
Results in Physics, 2020 Thin film of lithium niobate on insulator (LNOI) enables functional devices with compact sectional area and footprint, exhibiting high nonlinear optical conversion efficiencies and high performance electro-optical modulating.
Lei Wang +3 more
doaj +1 more source
Nonlinear self-flipping of polarization states in asymmetric waveguides
, 2012 Waveguides of subwavelength dimensions with asymmetric geometries, such as rib waveguides, can display nonlinear polarization effects in which the nonlinear phase difference dominates the linear contribution, provided the birefringence is sufficiently ...
Afshar, V. Shahraam +3 more
core +1 more source
Ion-Exchanged Glass Waveguide Technology: A Review [PDF]
, 2011 We review the history and current status of ion exchanged glass waveguide technology. The background of ion exchange in glass and key developments in the first years of research are briefly described.
Honkanen, Seppo +2 more
core +2 more sources