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Periodic Surface Structures Induced by a Single Laser Beam Irradiation
Author(s) -
Noga Joanna,
Sobolewska Anna,
Bartkiewicz Stanislaw,
Virkki Matti,
Priimagi Arri
Publication year - 2017
Publication title -
macromolecular materials and engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.913
H-Index - 96
eISSN - 1439-2054
pISSN - 1438-7492
DOI - 10.1002/mame.201600329
Subject(s) - materials science , azobenzene , laser , optics , beam (structure) , wavelength , laser beams , structure formation , irradiation , polymer , polarization (electrochemistry) , grating , diffraction grating , optoelectronics , composite material , physics , chemistry , quantum mechanics , galaxy , nuclear physics
Methods for inscribing periodic surface patterns by light, especially those characterized by the ability to control the pattern dimensions, are continuously sought for. In this paper, a periodic pattern, which is called the willow structure, is written to a supramolecular polymer‐azobenzene complex using a single coherent laser beam of linear polarization. The willow structure can be an alternative to the commonly used surface relief grating written with an interference pattern once it is known how to manipulate its period. It is shown that the periodicity of the structure obtained with the one‐beam approach can be controlled by changing the thickness of the polymer layer and the inscription temperature, in addition to the wavelength of the inscribing light. This information is useful for the utilization of the single‐beam method as a way for obtaining periodic structures with desired dimensions.