Numerical consideration on trapping and guiding of nanoparticles in a flow using scattering field of laser light

Naomichi Yokoi; Yoshihisa Aizu

doi:10.1117/12.2269420

18 April 2017 Numerical consideration on trapping and guiding of nanoparticles in a flow using scattering field of laser light

Naomichi Yokoi, Yoshihisa Aizu

Author Affiliations +

Proceedings Volume 10251, Biomedical Imaging and Sensing Conference; 1025123 (2017) https://doi.org/10.1117/12.2269420
Event: SPIE Technologies and Applications of Structured Light, 2017, Yokohama, Japan

Abstract

Optical manipulation techniques proposed so far almost depend on carefully fabricated setups and samples. Similar conditions can be fixed in laboratories, however, it is still a challenging work to manipulate nanoparticles when the environment is not well controlled and is unknown in advance. Nonetheless, coherent light scattered by rough object generates speckles which are random interference patterns with well-defined statistical properties. In the present study, we numerically investigate the motion of a particle in a flow under the illumination of a speckle pattern that is at rest or in motion. Trajectory of the particle is simulated in relation to a flow velocity and a speckle contrast to confirm the feasibility of the present method for performing optical manipulation tasks such as trapping and guiding.

Citation Download Citation

Naomichi Yokoi and Yoshihisa Aizu "Numerical consideration on trapping and guiding of nanoparticles in a flow using scattering field of laser light", Proc. SPIE 10251, Biomedical Imaging and Sensing Conference, 1025123 (18 April 2017); https://doi.org/10.1117/12.2269420

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