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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 20, Iss. 4 — Feb. 13, 2012
  • pp: 4254–4259

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

Kiminori Ito, Hiroshi Frusawa, and Masahiro Kimura  »View Author Affiliations

Optics Express, Vol. 20, Issue 4, pp. 4254-4259 (2012)

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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.

© 2012 OSA

OCIS Codes
(160.3710) Materials : Liquid crystals
(220.4610) Optical design and fabrication : Optical fabrication
(220.4880) Optical design and fabrication : Optomechanics
(350.4855) Other areas of optics : Optical tweezers or optical manipulation

ToC Category:
Optical Trapping and Manipulation

Original Manuscript: January 4, 2012
Revised Manuscript: January 28, 2012
Manuscript Accepted: January 30, 2012
Published: February 6, 2012

Virtual Issues
Vol. 7, Iss. 4 Virtual Journal for Biomedical Optics

Kiminori Ito, Hiroshi Frusawa, and Masahiro Kimura, "Precise switching control of liquid crystalline microgears driven by circularly polarized light," Opt. Express 20, 4254-4259 (2012)

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