20.500.12556/RUL-131639 Mechanical manipulation of diffractive properties of optical holographic gratings from liquid crystalline elastomers An appealing property of optical diffractive structures from elastomeric materials is a possibility to regulate their optical patterns and consequently also their diffractive features with mechanical straining. We investigated the effect of strain on diffraction characteristics of holographic gratings recorded in a monodomain side-chain liquid crystalline elastomer. The strain was imposed either parallel or perpendicular to the initial alignment direction of the material. At temperatures far below the nematic–paranematic phase transition, straining along the initial alignment affects mainly the diffraction pattern, while the diffraction efficiency remains almost constant. In contrast, at temperatures close to the nematic–paranematic phase transition, the diffraction efficiency is also significantly affected. Straining in the direction perpendicular to the initial alignment strongly and diversely influences both the diffraction pattern and the diffraction efficiency. The difference between the two cases is attributed to shear–stripe domains, which form only during straining perpendicular to the initial alignment and cause optical diffraction that competes with the diffraction from the holographic grating structure. optics diffraction holographic gratings liquid crystalline elastomers optical diffraction elasto-optic effect optika uklon holografske mrežice tekočekristalni elastomeri true false true Angleški jezik Slovenski jezik Članek v reviji 2021-09-30 14:04:14 2021-09-30 14:04:15 2022-09-10 04:12:55 0000-00-00 00:00:00 2018 0 0 13 str. iss. 8, art. 1330 Vol. 8 Aug. 2018 0000-00-00 Zaloznikova Objavljeno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 535 2076-3417 10.3390/app8081330 3224420 RAZ_Bosnjakovic_Dejan_2018.pdf RAZ_Bosnjakovic_Dejan_2018.pdf 1 2137BFAD958489FCAF095F42A3D132D2 e4e7ee1ff843cfba32b3a1d44c9fd6aec26b650084f3aa3780a4fe5dc87acd90 a388ef30-21e6-11ec-a523-00155dcfd717 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=149020 https://www.mdpi.com/2076-3417/8/8/1330 0 9924629b-21e6-11ec-a523-00155dcfd717 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=149019 Fakulteta za matematiko in fiziko 0 0 0