Precise switching control of liquid crystalline microgears driven by circularly polarized light | Zendy

Kiminori Ito | Zendy; Hiroshi Frusawa | Zendy; Masahiro Kimura | Zendy

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Precise switching control of liquid crystalline microgears driven by circularly polarized light

Author(s) -

Kiminori Ito,

Hiroshi Frusawa,

Masahiro Kimura

Publication year - 2012

Publication title -

optics express

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.394

H-Index - 271

ISSN - 1094-4087

DOI - 10.1364/oe.20.004254

Subject(s) - birefringence , optics , circular polarization , materials science , polarization (electrochemistry) , photon , rotation (mathematics) , liquid crystal , optoelectronics , physics , chemistry , geometry , mathematics , microstrip

Liquid crystalline molecules carrying photopolymerizable end groups absorb photon energy via a two-photon process, enabling the photofabrication of 3D structures. In this work, we prepared microgears with different heights and tooth lengths. These birefringent microgears can be induced to rotate by circularly polarized light. Here, we demonstrate that the use of phase plate for switching between left- and right-handed polarization reverses the optically induced rotation while maintaining the same rotational frequency. Due to the precise switching control, these birefringent microgears have advantages over previous microrotors that are fabricated from non-birefringent light-curing resins.

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