Microscopic Studies of Alignment Layers Processed by a Focused Ion Beam for the Creation of Liquid Crystal Metasurfaces

The focused ion beam treatment of substrates with transparent electrodes coated with rubbed polymer layers is a key step in creating liquid crystal metasurfaces. This treatment provides local control over the liquid crystal alignment near the substrate surface. The structure, composition, and optica...

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Bibliographic Details
Published in:Crystallography reports 2021-07, Vol.66 (4), p.673-681
Main Authors: Artemov, V. V., Khmelinin, D. N., Mamonova, A. V., Gorkunov, M. V., Ezhov, A. A.
Format: Article
Language:English
Subjects:
Alignment
Atomic force microscopy
Coated electrodes
Crystal structure
Crystallography and Scattering Methods
Electron microscopy
Ion beams
Liquid crystals
Metamaterials and Photonic Crystals
Metasurfaces
Microscopes
Microscopy
Optical microscopy
Optical properties
Physics
Physics and Astronomy
Rubbing
Substrates
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Summary:The focused ion beam treatment of substrates with transparent electrodes coated with rubbed polymer layers is a key step in creating liquid crystal metasurfaces. This treatment provides local control over the liquid crystal alignment near the substrate surface. The structure, composition, and optical properties of the FIB-treated substrate surface were studied by the scanning electron microscopy, transmission electron microscopy (TEM), atomic force microscopy, optical microscopy, and Auger electron spectroscopy. The effects of rubbing and ion-beam irradiation are analyzed to elucidate the microscopic features and the reasons for changes in aligning properties.
ISSN:1063-7745
1562-689X
DOI:10.1134/S1063774521040039