Results 21 to 30 of about 821 (229)

Noise minimised high resolution digital holographic microscopy applied to surface topography [PDF]

open access: yesКомпьютерная оптика, 2018
The topography of surface relief gratings was studied by digital holographic microscopy. The applicability of the method for quantitative measurements of surface microstructure at nanoscale was demonstrated.
Elena Achimova   +5 more
doaj   +1 more source

Efficient Photo-Response of Azobenzene-based Compounds for Holographic Recording

open access: yesCrystals, 2022
One of the challenges for azobenzene-based materials in fabricating rewritable surface relief gratings is the long response time in the procedure of holographic recording, making it inefficient in real-time applications.
Tzu-Chien Hsu   +3 more
doaj   +1 more source

Deep surface relief grating in azobenzene-containing materials using a low-intensity 532 nm laser

open access: yesOptical Materials: X, 2019
The inscription of deep surface relief grating (SRG) in glassy monomeric azobenzene materials using a low intensity diode pumped solid state (DPSS) laser operating at 532 nm is demonstrated.
O. Sakhno   +3 more
doaj   +1 more source

Direct Magnetic Relief Recording Using As40S60: Mn–Se Nanocomposite Multilayer Structures

open access: yesNanoscale Research Letters, 2017
Processes of holographic recording of surface relief structures using As2S3:Mn–Se multilayer nanostructures as registering media were studied in this paper.
A. Stronski   +7 more
doaj   +1 more source

Surface-relief and polarization gratings for solar concentrators

open access: yesOptics Express, 2011
Transmission gratings that combine a large diffraction angle with a high diffraction efficiency and a low angular and wavelength dispersion could be used to collect sunlight in a light guide. In this paper we compare the diffractive properties of polarization gratings and classical surface-relief gratings and explore their possible use in solar ...
de Jong, T.M.   +2 more
openaire   +2 more sources

Features of the Resonance in a Rectangular Dielectric Surace-Relief Gratings Illuminated with a Limited Cross Section Gaussian Beam

open access: yesNanomaterials, 2021
In this work the features of the resonance in a rectangular dielectric surface-relief gratings, illuminated with a limited cross-section Gaussian beam, have been studied. The rigorous coupled wave method and beam decomposition into the plane waves by the
Stefano Bellucci   +4 more
doaj   +1 more source

Surface-relief polarization gratings for visible light

open access: yesOptics Express, 2010
Polarization gratings are space-variant subwavelength-structured photonic devices that control electromagnetic wave propagation by local modulation of the state of polarization of light. Using electron beam lithography, we have fabricated such devices in the form of dielectric and metallic surface-relief profiles for operation in the visible wavelength
Ismo, Vartiainen   +3 more
openaire   +2 more sources

Dual plasmonic modes in the visible light region in rectangular wave-shaped surface relief plasmonic gratings

open access: yesScientific Reports, 2023
Rectangular wave-shaped surface-relief plasmonic gratings (RSR-PGs) have been fabricated from a hybrid polymer by employing a simple nanoimprint photocuring lithography technique using a silicon template, followed by gold nanolayer metallization on top ...
Rahmat Hidayat   +5 more
doaj   +1 more source

Inscription of local surface relief gratings with a Scanning Near-field Optical Microscope on an azo-polymer film

open access: yesPolímeros, 2006
A Scanning Near-field Optical Microscope (SNOM) was used to inscribe locally limited Surface Relief Gratings (SRGs) on pDR1M, which is an azo-polymer film.
Ivan H. Bechtold   +3 more
doaj   +1 more source

Learning from Nature: Fighting Pathogenic Escherichia coli Bacteria Using Nanoplasmonic Metasurfaces

open access: yesAdvanced Materials Interfaces, 2023
Bioinspired nanoplasmonic 3D crossed surface relief gratings and metasurfaces are fabricated on azobenzene molecular glass thin films to create effective antibacterial surfaces.
Alexa Smith   +4 more
doaj   +1 more source

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