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

doi:10.1364/OE.27.010079

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

Research output: Contribution to journal › Article › peer-review

32 Scopus citations

Abstract

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.

Original language	English
Pages (from-to)	10079-10086
Number of pages	8
Journal	Optics Express
Volume	27
Issue number	7
DOIs	https://doi.org/10.1364/OE.27.010079
State	Published - 1 Apr 2019

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title = "Fast switching ferroelectric liquid crystal Pancharatnam-Berry lens",

abstract = "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.",

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

note = "Publisher Copyright: {\textcopyright} 2019 Optical Society of America under the terms of the OSA Open Access Publishing Agreement.",

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doi = "10.1364/OE.27.010079",

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AU - Ma, Y.

AU - Tam, Alwin M.W.

AU - Gan, X. T.

AU - Shi, L. Y.

AU - Srivastava, A. K.

AU - Chigrinov, V. G.

AU - Kwok, H. S.

AU - Zhao, J. L.

PY - 2019/4/1

Y1 - 2019/4/1

N2 - 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.

AB - 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.

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Fast switching ferroelectric liquid crystal Pancharatnam-Berry lens

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