Multilayer inhomogeneous holographic diffraction structures in photopolymerizing compositions with liquid crystals | Izvestiya vuzov. Fizika. 2022. № 8. DOI: 10.17223/00213411/65/8/10

Multilayer inhomogeneous holographic diffraction structures in photopolymerizing compositions with liquid crystals

This article presents theoretical models of the formation of multilayer inhomogeneous holographic diffraction structures in photopolymerizing compositions containing nematic liquid crystals and light diffraction on them. The results of numerical modeling of the kinetics of the formation of the amplitude of the first harmonic of the refractive index for each layer, taking into account the photoinduced optical absorption of the material, are presented. Based on the results of numerical modeling, it is shown that the profile view for each of the gratings can transform during recording and be inhomogeneous in depth, which can lead to distortion of the selective response of such structures. Optimization of the composition for each layer can allow the formation of more homogeneous grating profiles, thereby reducing the distortion of diffraction characteristics, and the use of an external electric field for each diffraction layer will allow controlling the type of selective response of such structures.

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Keywords

photopolymer materials, liquid crystals, multilayer diffraction structures

Authors

Name	Organization	E-mail
Sharangovich S.N.	Tomsk State University of Control Systems and Radioelectronics	shr@tusur.ru
Dolgirev V.O.	Tomsk State University of Control Systems and Radioelectronics	vitial2@mail.ru

Всего: 2

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$Multilayer inhomogeneous holographic diffraction structures in photopolymerizing compositions with liquid crystals | Izvestiya vuzov. Fizika. 2022. № 8. DOI: 10.17223/00213411/65/8/10$