Results 51 to 60 of about 117,357,898 (121)

Advances in Photonic Materials and Integrated Devices for Smart and Digital Healthcare: Bridging the Gap Between Materials and Systems

open access: yesAdvanced Materials, Volume 37, Issue 49, December 10, 2025.
This article summarizes significant technological advancements in materials, photonic devices, and bio‐interfaced systems, which demonstrate successful applications for impacting human healthcare via improved therapies, advanced diagnostics, and on‐skin health monitoring.
Seunghyeb Ban   +5 more
wiley   +1 more source

A simple and wavelength-flexible procedure for fabricating phase-shifted fibre Bragg gratings [PDF]

open access: yes, 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

Simulated holographic three-dimensional intensity shaping of evanescent-wave fields [PDF]

open access: yes, 2008
The size of bright structures in traveling-wave light fields is limited by diffraction. This in turn limits a number of technologies, for example, optical trapping.
Thomson, L.C.   +7 more
core   +1 more source

Biphotonic holographic gratings in azobenzene polyesters: Surface relief phenomena and polarization effects [PDF]

open access: yes, 2000
Biphotonic holographic gratings have been recorded in a side-chain azobenzene liquid crystalline polyester using a blue incoherent source and a He-Ne laser.
Sánchez, C.   +7 more
core   +1 more source

Holographic volume gratings in a glass-like polymer material [PDF]

open access: yes, 2005
We demonstrate a possibility to write efficient and thermally stable volume holographic gratings in a glassy polymer material based on PMMA and phenanthrenequinone with layers prepared, by casting the liquid solution of ingredients on a substrate and
U. V. Mahilny   +11 more
core   +1 more source

Beam-width-dependent filtering properties of strong volume holographic gratings [PDF]

open access: yes
The finite dimension of the incident beam used to read out volume holographic gratings has interesting effects on their filtering properties. As the readout beam gets narrower, there is more deviation from the ideal response predicted for monochromatic ...
Moser, C.   +4 more
core   +2 more sources

Changes of the diffraction efficiency due to emulsions thicknesses in holographic gratings [PDF]

open access: yes, 2007
We analyze the behavior of the diffraction efficiency as a function of the thickness of the relief holographic grating recorded on a phase emulsion composed by rosin and bromophenol blue (BPB) dye.
ARTURO OLIVARES PEREZ   +1 more
core  

Advanced fibre Bragg gratings: application to dispersion compensation

open access: yes, 1999
This thesis presents the design and fabrication issues related to advanced fibre Bragg gratings with particular emphasis on realising novel devices with application to dispersion compensation.
Durkin, Michael Kevan
core   +1 more source

Real-time holographic gratings modulate with voltage by different thickness film [PDF]

open access: yes, 2011
The holographic gratings on photopolymer films are studied by three different thicknesses for samples A, B, and C. The photopolymer emulsion is prepared with potassium dichromate and nickel (II) chloride hexahydrate in polyvinyl alcohol matrix.
ROSANGELA COROMOTO FONTANILLA URDANETA   +2 more
core  

Novel technique for measuring dispersion and detuning of a UV written silica-on-silicon waveguide

open access: yes, 2010
We shall present a new method of measuring the dispersive properties of UV written waveguides in the silica-on-silicon platform used to fabricate planar Bragg gratings.
Rogers, H.L., Smith, P.G.R., Gates, J.C.
core   +1 more source

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