Results 51 to 60 of about 128,599 (282)
IEEE Photonics Journal, 2016 We propose specially designed gradually changing-period phase grating (GCPPG) and used it to monitor the orbital angular momentum (OAM) light beam. Based on GCPPG, zero-order diffraction can be eliminated, and the diffraction power can be concentrated to
Yangjin Li +3 more
doaj +1 more source
Two-axis bend measurement with Bragg gratings in multicore optical fiber [PDF]
, 2003 We describe what is to our knowledge the first use of fiber Bragg gratings written into three separate cores of a multicore fiber for two-axis curvature measurement.
Araujo +16 more
core +2 more sources
Advanced Engineering Materials, EarlyView.Copper‐based composites enhanced with carbon feature convenient mechanical properties and favorable electric conductivity. Processing via deformation and thermomechanical treatments can introduce advantageous microstructures further enhancing their performance. Herein, copper–graphene powder‐based composites are directly consolidated via rotary swaging
Radim Kocich +3 more
wiley +1 more source
Dual-Channel Light Intensity Modulation Method for Focusing in Projection Lithography
IEEE Photonics Journal, 2016 Focusing technique is the key factor in improving the resolution of projection lithography. In order to achieve high accuracy of focusing on the nanometer level, we present a focusing method based on dual-channel light intensity modulation.
Yanli Li +4 more
doaj +1 more source
Laser interference lithography with highly accurate interferometric alignment [PDF]
, 2003 Three dimensional photonic crystals, e.g. for obtaining the so-called woodpile structure, can, among others, be fabricated by vertical stacking of multiple gratings. One of the requirements for obtaining a full photonic bandgap in such a photonic crystal
Hoekstra, Hugo J.W.M. +5 more
core +1 more source
Vibrational spectroscopy at electrolyte/electrode interfaces with graphene gratings. [PDF]
, 2015 Microscopic understanding of physical and electrochemical processes at electrolyte/electrode interfaces is critical for applications ranging from batteries, fuel cells to electrocatalysis.
Bie, Ya-Qing +7 more
core +3 more sources
Advanced Functional Materials, EarlyView.This study presents novel anti‐counterfeiting tags with multilevel security features that utilize additional disguise features. They combine luminescent nanosized Ln‐MOFs with conductive polymers to multifunctional mixed‐matrix membranes and powder composites. The materials exhibit visible/NIR emission and matrix‐based conductivity even as black bodies.
Moritz Maxeiner +9 more
wiley +1 more source
Optical security device for document protection using plasmon resonant transmission through a thin corrugated metallic film embedded in a plastic foil [PDF]
Journal of the European Optical Society-Rapid Publications, 2013 The well known resonant or extraordinary transmission through an undulated metallic thin film embedded in a dielectric layer using the Plasmon modes excitation under normal incidence is industrially exploited for document protection applications.
Sauvage-Vincent J. +4 more
doaj +1 more source
Inverse Scattering for Gratings and Wave Guides
, 2007 We consider the problem of unique identification of dielectric coefficients for gratings and sound speeds for wave guides from scattering data. We prove that the "propagating modes" given for all frequencies uniquely determine these coefficients.
Ahluwalia D +16 more
core +1 more source
Advanced Functional Materials, EarlyView.The study presents biodegradable and recyclable mixed‐matrix membranes (MMMs), hydrogels, and cryogels using luminescent nanoscale metal‐organic frameworks (nMOFs) and biopolymers. These bio‐nMOF‐MMMs combine europium‐based nMOFs as probes for the status of the materials with the biopolymers agar and gelatine and present alternatives to conventional ...
Moritz Maxeiner +4 more
wiley +1 more source