Optical Review

, Volume 6, Issue 1, pp 24–27 | Cite as

Nonmechanical Optical Manipulation of Microparticle Using Spatial Light Modulator

  • Yoshio Hayasaki
  • Masahide Itoh
  • Toyohiko Yatagai
  • Nobuo Nishida


A spatial light modulator (SLM) is introduced to an optical manipulation system. The real-time reconfigurable feature of the SLM makes it possible to perform an optical manipulation of microparticles without mechanical movements of optical parts. A liquid crystal SLM incorporated in the system forms a Fresnel zone plate (FZP). The beam spot generated by the FZP is imaged on a sample solution by reduction optics. A microparticle in the sample solution is trapped by the beam and manipulated by changing the addressing position of the FZP onto the SLM from a computer. The nonmechanical optical manipulation of microparticles is demonstrated for the first time.

Key words

optical trapping optical manipulation optical tweezers spatial light modulator Fresnel zone pulate 


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Copyright information

© The Optical Society of Japan 1999

Authors and Affiliations

  • Yoshio Hayasaki
    • 1
  • Masahide Itoh
    • 2
  • Toyohiko Yatagai
    • 2
  • Nobuo Nishida
    • 1
  1. 1.Faculty of Engineering, University of Tokushima, Department of Optical Science and TechnologyTokushimaJapan
  2. 2.Institute of Applied Physics, University of TsukubaTsukubaJapan

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