Results 21 to 30 of about 1,590 (234)
Nanomaterials, 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
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Deep surface relief grating in azobenzene-containing materials using a low-intensity 532 nm laser
Optical 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
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Surface-relief and polarization gratings for solar concentrators
Optics 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
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Materials Research Letters, 2019 We report on secondary surface relief grating formation associated with holographic recording of volume phase gratings in epoxy-based, free-surface, volume holographic recording material, as well as in pure Epon SU-8 photoresist.
Tina Sabel +2 more
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Surface-relief polarization gratings for visible light
Optics 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
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Multi-Wavelength Optical Patterning for Multiscale Materials Design
Photonics, 2021 Laser interferometry is a consolidated technique for materials structuring, enabling single step and large area patterning. Here we report the investigation of the morphological modification encoded on a thin film of a photosensitive material by the ...
Biagio Audia +3 more
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Advanced Photonics Research, 2023 Surface‐relief‐gratings (SRGs) of azo polymers and azo molecular glasses have attracted considerable interest for their erasable and reconfigurable characteristics.
Xu Li, Hao Huang, Xiaogong Wang
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All-Optical Method of Determining Laser Power from the Photomechanical Effect
Applied Sciences, 2022 A method to determine the power of a continuous wave laser from photothermal heating of a poly(dimethyl siloxane) film is reported. The base was doped with oil red O and cured on a surface relief grating.
Frank Sun +3 more
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Surface Plasmon-Induced Band Gap in the Photocurrent Response of Organic Solar Cells
International Journal of Photoenergy, 2010 A 260 nm layer of organic bulk heterojunction blend of the polymer poly(3-hexylthiophene) (P3HT) and the fullerene [6,6]-phenyl C61-butyric (PCBM) was spin-coated in between aluminum and gold electrodes, respectively, on top of a laser inscribed azo ...
Ribal Georges Sabat +2 more
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