R. S. Hakobyan

TL;DR: In this article, the authors observed a strong effect of surfactant structure on the aggregation of ferromagnetic nanoparticles in nematic liquid crystal (LC) hosts, and the colloidal stability and ordering of the resulting nematic matrix.

TL;DR: In this article, the thermal dependence of holographic gratings based on near infrared sensitive polymer dispersed liquid crystal films was investigated and it was shown that the diffraction efficiency of the grating changes non-monotonically with the increase of the sample's temperature.

TL;DR: In this article, the authors theoretically describe the experimentally observed inhibition period prior to the holographic grating formation in liquid crystal photopolymerizable materials, and propose a model to explain the inhibition period by the presence of oxygen or other inhibitor molecules, which initially suppress the creation of free radicals.

TL;DR: In this paper, a scalable and robust methodology for writing cycloidal modulation patterns of optical axis orientation in photosensitive surface alignment layers is demonstrated, where the cycloidal diffractive waveplates offer utility in technologies requiring diffraction over a broad range of angles/wavelengths.

TL;DR: Oblique propagation of light through a planar layer of a cholesteric liquid crystal (CLC) is solved by Ambartsumian's modified layer addition method in this article.