Azodyes for liquid crystal photoalignment in displays and diffraction optical elements

Photoalignment on azo dye films is a simple and efficient way to achieve anisotropic ordering of molecules, which is promising to achieve ultra-thin high-performance dichroic polarizers. Besides, the photoalignment technique shows a unique advantage on patterned alignment applications, and enables the realization of advanced optical elements such as liquid crystal (LC) Dammann grating, LC Fresnel lens, holographic polarizers and bifocal optical-vortex lens. © 2022 SPIE.

Authors
Chigrinov V.G.1, 2 , Belyaev V.V. 2, 3 , Kozenkov V.M.4 , Chausov D.N.2, 5 , Margaryan H.L.6 , Hakobyan N.H.6 , Tabiryan N.V.7
Conference proceedings
Proceedings of SPIE - The International Society for Optical Engineering
Publisher
SPIE
Language
English
Status
Published
DOI
10.1117/12.2614534
Number
1202305
Volume
12023
Year
2022
Organizations
  • 1 Hong Kong University of Science and Technology, Clear Water Bay Kowloon, Hong Kong
  • 2 Moscow Region State University, 10А Radio str., Moscow, 105005, Russian Federation
  • 3 RUDN University, 6 Miklukho-Maklaya str., Moscow, 117198, Russian Federation
  • 4 Kripten, 2 Priborostroiteley str., Dubna, 141980, Russian Federation
  • 5 Prokhorov General Physics Institute of RAS, Moscow, Russian Federation
  • 6 Yerevan State University, 1 Alex Manoogian str., Yerevan, 0025, Armenia
  • 7 BEAM Co., 1300 Lee Road, Orlando, FL 32810, United States
Keywords
Dammann grating; diffraction; Fresnel lens; holographic polarizers; Pancharatnam-Berry phase; phase transparent; Photoalignment; polarizer
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