Results 61 to 70 of about 247,892 (261)
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
Direct infrared femtosecond laser inscription of chirped fiber Bragg gratings.
Optics Express, 2016 We compare and contrast novel techniques for the fabrication of chirped broadband fiber Bragg gratings by ultrafast laser inscription. These methods enable the inscription of gratings with flexible period profiles and thus tailored reflection and ...
S. Antipov +5 more
semanticscholar +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
Interaction between luminance gratings and disparity gratings
Spatial Vision, 2004 It was shown from geometry and photographic measurement that the shading pattern for a sinusoidal corrugated surface of frequency f approximates to a luminance-defined grating of frequency f, 2f or f + 2f in specific relative phase. It was confirmed that a luminance grating modifies the appearance of a suprathreshold stereoscopic corrugated surface ...
Michael, Wright, Tim, Ledgeway
openaire +2 more sources
Journal of the European Optical Society-Rapid Publications, 2009 Strong regenerated gratings with a maximum grating strength exceeding (40–50) dB are fabricated inside an optical fibre by bulk macro thermal processing ∼ 900°C using a UV-laser seeded Bragg grating. Further annealing between 1000°C and 1100°C leads to a
Canning John +5 more
doaj +1 more source
Facilitation of Luminance Grating Detection by Induced Gratings
Vision Research, 1996 Grating induction causes a homogeneous test field surrounded by sinewave gratings to possess an induced counterphase grating [McCourt M. E. (1982). Vision Research, 22, 119]. There is currently no consensus about the stage of visual processing at which illusory phenomena such as simultaneous brightness contrast are signaled.
McCOURT, MARK E. +1 more
openaire +2 more sources
Remarkable Color Gamut Enhancement of Dye Lacquers Using Corrugated Surfaces
Advanced Photonics Research, 2022 The visual appearance of any colorized object is usually determined by the spectral absorption of either pigments or dyes. One can however also colorize objects with structural colors that typically have an iridescent appearance, as seen on many beetles.
Sebastian Mader, Olivier J. F. Martin
doaj +1 more source
Excitation of Surface Plasmons Using Tilted Planar-Waveguide Bragg Gratings
IEEE Photonics Journal, 2011 We present a planar-integrated optical surface plasmon refractometer. The fabricated device operates by grating-matched coupling between a core waveguide mode and a set of hybrid plasmon-dielectric modes of a much wider integrated structure.
C. Holmes +5 more
doaj +1 more source
Chemosensors, 2022 We report on the optical characterization of very high-efficiency and high-resolution holographic volume phase transmission gratings. The gratings are recorded in a new photo-polymerizable mixture made by epoxy-resin and multi-acrylate.
Riccardo Castagna +3 more
doaj +1 more source
Rouard's method as a modelling tool for the sensing characteristics of complex fibre Fabry-Perot interferometers formed between chirped fibre Bragg gratings [PDF]
, 2005 Phase and spectral response characteristics of fibre Fabry-Perot interferometers (FFPI), formed between linearly chirped fibre Bragg gratings (FBG), were theoretically modelled using Rouard's method.
Ralph P. Tatam +5 more
core +1 more source