Results 21 to 30 of about 233 (148)

Polarized light guiding anisotropic deformation and relaxation in photosensitive polymeric substrates [PDF]

open access: yesEPJ Web of Conferences, 2022
Light-responsive polymers offer unique possibilities for anisotropic manipulation of objects on the micron scale. Here we demonstrate the reversible anisotropic stretching of a polymeric surface made out of an azopolymer-elastomer blend, in response to ...
Urban David   +2 more
doaj   +1 more source

Direct magnetic and surface relief patterning using carbazole-based azopolymer

open access: yesФізика і хімія твердого тіла, 2023
The results on using of carbazole-based azopolymer layers (Polyepoxypropylcarbazole:Methyl Red with magnetic particles of Fe2SO4) for the recording of 1-D and 2-D surface relief gratings are presented in this report. Morphology study using AFM and MFM of
O. Paiuk   +7 more
doaj   +1 more source

Investigation of photoinduced formation of microstructures on the surface of carbaseole-containing azopolymer depending on the power density of incident beams [PDF]

open access: yesКомпьютерная оптика, 2018
In this paper we synthesized and measured optical characteristics of an azopolymer based on the polymer N-epoxypropylcarbazole and chromophore 4 - (4-nytrophenylazo)-aniline.
Vladimir Podlipnov   +5 more
doaj   +1 more source

ON BIAXIALITY OF PHOTOINDUCED STRUCTURES IN AZOPOLYMER FILMS [PDF]

open access: yesCondensed Matter Physics, 2001
Spatial orientational structures in the layers of liquid crystalline polymalonates are investigated using UV absorption method and the results of the null ellipsometry technique. Preferential in-plane alignment of azobenzene fragments and in-plane reorientation under irradiation with polarized UV light are established.
Kiselev, A.   +3 more
openaire   +2 more sources

Analysis of characteristics of paraxial vector Gaussian beams affecting the formation of microstructures in an azopolymer [PDF]

open access: yesКомпьютерная оптика, 2019
The paper considers paraxial Gaussian laser beams with different polarization states and their characteristics, such as the Poynting vector, gradient force, and force density, which are important for evaluating the effects of radiation on matter.
Svetlana Khonina   +4 more
doaj   +1 more source

Generation of Orbital Angular Momentum Light by Patterning Azopolymer Thin Films

open access: yesPhotonics, 2023
Orbital angular momentum (OAM) encoding is a promising technique to boost data transmission capacity in optical communications. Most recently, azobenzene films have gained attention as a versatile tool for creating and altering OAM-carrying beams. Unique
Temitope M. Olaleye   +2 more
doaj   +1 more source

High photoinduced birefringence in thermally treated layers of the azopolymer PAZO with significantly changed absorbance spectrum [PDF]

open access: yesEPJ Web of Conferences
In this experimental work we present the effect of thermal treatment of azopolymer thin films on their absorbance spectra and how that influences the photoinduced birefringence of the azopolymer.
Mateev Georgi   +5 more
doaj   +1 more source

Multi-Wavelength Optical Patterning for Multiscale Materials Design

open access: yesPhotonics, 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
doaj   +1 more source

Vectorial spin-orbital Hall effect of light upon tight focusing and its experimental observation in azopolymer films

open access: yesOpto-Electronic Science, 2023
Hall effect of light is a result of symmetry breaking in spin and/or orbital angular momentum (OAM) possessing optical system and is caused by e.g. refractive index gradient/interface between media or focusing of a spatially asymmetrical beam, similar to
Alexey Porfirev   +4 more
doaj   +1 more source

Interaction Studies between Newly Synthesized Photosensitive Polymer and Ionic Liquids

open access: yesInternational Journal of Polymer Science, 2015
In this information age, different kinds of photosensitive materials have been used in the manufacture of information storage devices. But these photosensitive materials have the bane of low diffraction efficiency. In order to solve this problem, we have
In Tae Kim   +8 more
doaj   +1 more source

Home - About - Disclaimer - Privacy