Results 41 to 50 of about 247,892 (261)
A Review: Application and Implementation of Optic Fibre Sensors for Gas Detection
Sensors, 2021 At the present time, there are major concerns regarding global warming and the possible catastrophic influence of greenhouse gases on climate change has spurred the research community to investigate and develop new gas-sensing methods and devices for ...
Thomas Allsop, Ronald Neal
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Dimerized high contrast gratings
Nanophotonics, 2018 Metasurfaces and planar photonic crystals are two classes of subwavelength diffractive optical devices offering novel functionalities. The former employ independently operating subwavelength “meta-units” as their building blocks, while the latter exploit
A. Overvig, S. Shrestha, N. Yu
semanticscholar +1 more source
Electrically tunable, optically induced dynamic and permanent gratings in dye-doped liquid crystals [PDF]
, 2002 We report on further experimental studies of the ac field response of transient and permanent gratings written with visible light in both planar and homeotropic, dye-doped liquid crystal cells.
Cudney, Roger S. +3 more
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Applied SciencesThe journal retracts and remove the article “Exploration of a Flexible Metasurface for Strain Sensors: A Perspective from 2D Grating Fabrication to Spectral Characterization” [...]
Hao Hu, Bayanheshig
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Broadband Mirrors in the Near-Infrared Based on Subwavelength Gratings in SOI
IEEE Photonics Journal, 2010 We describe the design, fabrication, and characterization of high-reflectivity broadband mirrors operating in the near-infrared (700-1000 nm) wavelength range.
Armando Ricciardi +4 more
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Measuring Orbital Angular Momentum (OAM) States of Vortex Beams with Annular Gratings
Scientific Reports, 2017 Measuring orbital angular momentum (OAM) states of vortex beams is of great importance in diverse applications employing OAM-carrying vortex beams. We present a simple and efficient scheme to measure OAM states (i.e.
Shuang Zheng, Jian Wang
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Effect of Contrast and Adaptation on the Perception of the Direction and Speed of Drifting Gratings [PDF]
, 1994 Three experiments were conducted to analyse the effect of contrast and adaptation state on the ability of human observers to discriminate the motion of drifting gratings.
Müller, Rolf +2 more
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Protein Binding Detection Using On-Chip Silicon Gratings
Sensors, 2011 We demonstrate a silicon gratings-based biosensor to detect functionalized protein binding on its surface. The designed silicon gratings have sensitivities up to 197 nm/RIU in detecting refractive index change and 1.61 nm per nanometer of thickness ...
Jayshri Sabarinathan +1 more
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Birefringent optofluidic gratings
Optics Express, 2020 A set of parallel microfluidic channels behaving as a diffraction grating operating in the Raman-Nath regime has been fabricated and studied. The diffraction efficiency of such structure can be tuned by selecting a liquid with a particular refractive index and/or optical anisotropy.
Sergio Calixto +4 more
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A simple and wavelength-flexible procedure for fabricating phase-shifted fibre Bragg gratings [PDF]
, 2010 A simple procedure for fabricating phase-shifted fibre Bragg gratings (PSFBGs) that does not require the use of a phase-shifted phase mask is presented.
Tatam, Ralph P. +5 more
core +1 more source