Results 111 to 120 of about 292,649 (389)
Nanoscale liquid crystal polymer Bragg polarization gratings.
Optics Express, 2017 We experimentally demonstrate nearly ideal liquid crystal (LC) polymer Bragg polarization gratings (PGs) operating at a visible wavelength of 450 nm and with a sub-wavelength period of 335 nm.
Xiao Xiang +3 more
semanticscholar +1 more source
Advanced Materials Interfaces, EarlyView.This study presents a novel mechanically responsive optical device that modulates light transmission and generates iridescent structural colors under reflection. The optical transition arises from the exposure of nanoparticles upon stretching, which are initially embedded beneath the surface.
Nguyen Hoang Minh +4 more
wiley +1 more source
Selected issues concerning fibre-optic bending sensors
Informatyka, Automatyka, Pomiary w Gospodarce i Ochronie ŚrodowiskaThis paper presents a comprehensive review of bending sensors and their classifications. The main focus is on advancements in the design of optical fibre bending sensors based on fibre Bragg gratings (FBGs).
Les Hotra +4 more
doaj +1 more source
Sensors, 2009 We report about the possibility of using regenerated fiber Bragg gratings generated in photosensitive fibers without applying hydrogen loading for high temperature sensor networks.
Hartmut Bartelt +6 more
doaj +1 more source
Optimal parameters for fiber Bragg gratings for sensing applications: a spectral study [PDF]
, 2021 P. V. Raja Shekar +3 more
openalex +1 more source
Bragg gratings in a few mode microstructured polymer optical fiber in less than 30 seconds.
Optics Express, 2015 We report the inscription of a Bragg grating in an undoped polymethylmethacrylate based microstructured fiber in a time record. The fiber has been irradiated with a 248 nm ultraviolet radiation, through the phase mask technique using low fluence and low ...
R. Oliveira, L. Bilro, R. Nogueira
semanticscholar +1 more source
Advanced Materials Interfaces, EarlyView.Micro‐Laue diffraction and excited optical X‐ray luminescence are used to study InGaN/GaN core‐shell wires on the BM32 beamline at the European Synchrotron. Multimodal imaging of X‐ray fluorescence, deviatoric strain tensors and optical emissions is performed using simultaneous mapping.
Beatriz de Goes Foschiani +5 more
wiley +1 more source
Brillouin lasing in single-mode tapered optical fiber with inscribed fiber Bragg grating array
Results in Physics, 2018 A tapered optical fiber has been manufactured with an array of fiber Bragg gratings (FBG) inscribed during the drawing process. The total fiber peak reflectivity is 5% and the reflection bandwidth is ∼3.5 nm. A coherent frequency domain reflectometry has
S.M. Popov +12 more
doaj +1 more source
, 2010 The spectral characteristics of a fiber Bragg grating (FBG) with a transversely inhomogeneous refractive index profile, differs con- siderably from that of a transversely uniform one.
Andreas Tünnermann +30 more
core +1 more source
Non-steady-state extremely asymmetrical scattering of waves in periodic gratings [PDF]
, 2002 Extremely asymmetrical scattering (EAS) is a highly resonant type of Bragg scattering with a strong resonant increase of the scattered wave amplitude inside and outside the grating.
Bakhturin +10 more
core +4 more sources