Modeling of Stripe Patterns in Photosensitive Azopolymers [PDF]
Polymers, 2020 Placed at interfaces, azobenzene-containing materials show extraordinary phenomena when subjected to external light sources. Here we model the surface changes induced by one-dimensional Gaussian light fields in thin azopolymer films. Such fields can be produced in a quickly moving film irradiated with a strongly focused laser beam or illuminating the ...
Jan Domurath, Bharti Yadav
exaly +5 more sources
Sensitized Disequilibration of Water‐Soluble Azopolymers [PDF]
Angewandte Chemie - International EditionAbstract Photo‐responsive systems based on azobenzenes usually require UV light for E → Z isomerization, limiting their applicability, especially in biomedical contexts. Disequilibration by sensitization of azobenzene under confinement
Satu Häkkinen +2 more
exaly +5 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 +3 more
doaj +2 more sources
Writing and reading with the longitudinal component of light using carbazole-containing azopolymer thin films [PDF]
Scientific Reports, 2022 It is well known that azobenzene-containing polymers (azopolymers) are sensitive to the polarization orientation of the illuminating radiation, with the resulting photoisomerization inducing material transfer at both the meso- and macroscale. As a result,
Alexey Porfirev +5 more
doaj +2 more sources
Multi-Spiral Laser Patterning of Azopolymer Thin Films for Generation of Orbital Angular Momentum Light [PDF]
Nanomaterials, 2023 Recently, the realization of the spiral mass transfer of matter has attracted the attention of many researchers. Nano- and microstructures fabricated with such mass transfer can be used for the generation of light with non-zero orbital angular momentum ...
Alexey P. Porfirev +3 more
doaj +2 more sources
Polarization-Sensitive Patterning of Azopolymer Thin Films Using Multiple Structured Laser Beams [PDF]
Sensors, 2022 The polarization sensitivity of azopolymers is well known. Therefore, these materials are actively used in many applications of photonics. Recently, the unique possibilities of processing such materials using a structured laser beam were demonstrated ...
Alexey P. Porfirev +5 more
doaj +2 more sources
Quantitative Study of Morphological Features of Stem Cells onto Photopatterned Azopolymer Films [PDF]
Journal of Functional Biomaterials, 2020 In the last decade, the use of photolithography for the fabrication of structured substrates with controlled morphological patterns that are able to interact with cells at micrometric and nanometric size scales is strongly growing. A promising simple and
Marcella Salvatore +7 more
doaj +2 more sources
Thermocapillary Marangoni Flows in Azopolymers. [PDF]
Materials (Basel), 2020 It is well known that light-induced multiple trans-cis-trans photoisomerizations of azobenzene derivatives attached to various matrices (polymeric, liquid crystalline polymers) result in polymer mass movement leading to generation of surface reliefs. The reliefs can be produced at small as well as at large light intensities.
Miniewicz A +5 more
europepmc +6 more sources
Polarization-driven reversible actuation in a photo-responsive polymer composite [PDF]
Nature Communications, 2023 Light-responsive polymers and especially amorphous azopolymers with intrinsic anisotropic and polarization-dependent deformation photo-response hold great promises for remotely controlled, tunable devices.
David Urban +5 more
doaj +2 more sources
Spectral tuning of Bloch Surface Wave resonances by light-controlled optical anisotropy [PDF]
Nanophotonics, 2023 Fostered by the recent advancements in photonic technologies, the need for all-optical dynamic control on complex photonic elements is emerging as more and more relevant, especially in integrated photonics and metasurface-based flat-optics.
Marcucci Niccolò +5 more
doaj +2 more sources