Fast switching ferroelectric liquid crystal Pancharatnam-Berry lens

Y. Ma, Alwin M.W. Tam, X. T. Gan, L. Y. Shi, A. K. Srivastava, V. G. Chigrinov, H. S. Kwok, J. L. Zhao

科研成果: 期刊稿件文章同行评审

32 引用 (Scopus)

摘要

A ferroelectric liquid crystal (FLC) cell with continuously alignment structure is realized by a polarization hologram method for fabricating a Pancharatnam-Berry (PB) lens, which is employed as a concave/convex lens. The PB phase can be maintained by the optical axis in-plane switching; meanwhile, its diffraction efficiency can be tuned in a certain range by electrically controlling azimuthal angle and optical biaxiality of the smectic helical structure realized by deformed helix ferroelectric liquid crystals. The measured diffraction efficiency of the fabricated device is up to 87% and the response time can be 300μs with a low electric voltage. The FLC PB lens can have potential applications in existing optical devices and the realization of FLC with continuous alignment structure can be further used for other LC-based optical devices.

源语言英语
页(从-至)10079-10086
页数8
期刊Optics Express
27
7
DOI
出版状态已出版 - 1 4月 2019

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