Abstract
We report on the electrically tunable optical structure based on dual-domain nematic liquid crystal (LC) alignment for in-plane beam steering applications. The device operates due to the total internal reflection of an extraordinary beam at the LC refractive index interface that separates homeotropic and planar-aligned nematics. Patterned electrodes were used in order to switch on the refractive index interface in the bulk of a planar-aligned LC layer. An outstanding feature of the proposed device is the function of tuning the spatial position of the LC interface by means of a fringing electric field, which allowed one to implement wide range light beam microscanning, as well as to realize in-plane angular beam steering with a milliradian resolution.
© 2020 Optical Society of America
Full Article | PDF ArticleMore Like This
Andrei A. Komar, Alexei L. Tolstik, Elena A. Melnikova, and Alexander A. Muravsky
Appl. Opt. 54(16) 5130-5135 (2015)
Comrun Yousefzadeh, Andre Van Rynbach, Doug Bryant, and Philip Bos
Appl. Opt. 59(34) 10706-10718 (2020)
Rahul Panchal and Aloka Sinha
J. Opt. Soc. Am. B 40(5) 1189-1195 (2023)