Results 1 to 10 of about 821 (229)

Complex Dynamics of Photoinduced Mass Transport and Surface Relief Gratings Formation [PDF]

Nanomaterials, 2019
The microscopic and semi-macroscopic mechanisms responsible for photoinduced mass transport in functionalized azo-polymers are far from deeply understood.
Grzegorz Pawlik, Tomasz Wysoczanski, Antoni C. Mitus   +2 more
doaj   +2 more sources

Selective Uropathogenic E. coli Detection Using Crossed Surface-Relief Gratings [PDF]

Sensors, 2018
Urinary tract infections (UTIs) are one of the major burdens on public healthcare worldwide. One of the primary causes of UTIs is the invasion of the urinary tract by uropathogenic Escherichia coli (UPEC).
Srijit Nair, Juan Gomez-Cruz, Ángel Manjarrez-Hernandez, Gabriel Ascanio, Ribal Georges Sabat, Carlos Escobedo   +5 more
doaj   +2 more sources

Two-Dimensional Polarization Holographic Gratings in Azopolymer Thin Films: Polarization Properties in the Presence or Absence of Surface Relief

Photonics, 2023
During polarization holographic recording in azopolymer thin films, usually together with the volume anisotropic grating, a surface relief grating (SRG) is also formed.
Georgi Mateev, Lian Nedelchev, Ludmila Nikolova, Branimir Ivanov, Velichka Strijkova, Elena Stoykova, Kihong Choi, Joongki Park, Dimana Nazarova   +8 more
doaj   +3 more sources

Surface Relief Gratings of Slide-Ring Hydrogels for Label-Free Biosensing [PDF]

Gels
The creation of surface relief gratings using hydrogels for label-free biomolecule detection represents a significant advance in the development of versatile, cutting-edge biosensors.
Aitor Cubells-Gómez, María Isabel Lucío, María-José Bañuls, Ángel Maquieira   +3 more
doaj   +2 more sources

Surface-Relief Gratings in Halogen-Bonded Polymer–Azobenzene Complexes: A Concentration-Dependence Study [PDF]

Molecules, 2017
In recent years, supramolecular complexes comprising a poly(4-vinylpyridine) backbone and azobenzene-based halogen bond donors have emerged as a promising class of materials for the inscription of light-induced surface-relief gratings (SRGs). The studies
Jelle E. Stumpel, Marco Saccone, Valentina Dichiarante, Ossi Lehtonen, Matti Virkki, Pierangelo Metrangolo, Arri Priimagi   +6 more
doaj   +2 more sources

Direct Writing of Quasi-Sinusoidal and Blazed Surface Relief Optical Transmission Gratings in Bi₁₂GeO₂₀, Er: LiNbO₃ and Er: Fe: LiNbO₃ Crystals by Nitrogen Ion Microbeams of 5 MeV and 10.5 MeV Energy [PDF]

Sensors
High diffraction efficiency optical transmission gratings with quasi-sinusoidal and saw-tooth surface relief profiles were fabricated in Bi12GeO20, Er: LiNbO3 and Er: Fe: LiNbO3 crystals by ion beam implantation.
István Bányász, Gyula Nagy, Vladimir Havránek, Maria Cinta Pujol, Ágnes Nagyné Szokol, György Kármán, Robert Magnusson, István Rajta   +7 more
doaj   +2 more sources

Stacked Polarizing Elements for Controlling Parameters of Surface Relief Gratings Written in Photosensitive Materials [PDF]

Sensors
Photosensitive materials are widely used for the direct fabrication of surface relief gratings (SRGs) without the selective etching of the material. It is known that the interferometric approach makes it possible to fabricate SRGs with submicron and even
Alexey P. Porfirev, Svetlana N. Khonina, Nikolay A. Ivliev, Denis P. Porfirev, Nikolay L. Kazanskiy   +4 more
doaj   +2 more sources

Nanocomposite Photoanisotropic Materials for Applications in Polarization Holography and Photonics [PDF]

Nanomaterials, 2023
Photoanisotropic materials, in particular azodyes and azopolymers, have attracted significant research interest in the last decades. This is due to their applications in polarization holography and 4G optics, enabling polarization-selective diffractive ...
Dimana Nazarova, Lian Nedelchev, Nataliya Berberova-Buhova, Georgi Mateev   +3 more
doaj   +2 more sources

Simultaneous formation of holographic surface relief gratings and volume phase gratings in photosensitive polymer

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, Gonzalo de Vicente Lucas, Marga C. Lensen   +2 more
doaj   +2 more sources

Real-Time Plasmonic Strain Sensors Based on Surface Relief Diffraction Gratings [PDF]

Micromachines
Large-scale diffraction gratings were fabricated in surface relief on azobenzene thin films and transferred to flexible PDMS substrates using soft lift-off lithography.
Yazan Bdour, Ribal Georges Sabat
doaj   +2 more sources