Optical waveguide trapping forces on hollow glass spheres

Pål Løvhaugen; Balpreet S. Ahluwalia; Olav G. Hellesø

doi:10.1117/12.873772

16 February 2011 Optical waveguide trapping forces on hollow glass spheres

Pål Løvhaugen, Balpreet S. Ahluwalia, Olav G. Hellesø

Proceedings Volume 7950, Complex Light and Optical Forces V; 79500P (2011) https://doi.org/10.1117/12.873772
Event: SPIE OPTO, 2011, San Francisco, California, United States

Abstract

Three dimensional finite element method is employed to determine optical trapping forces on hollow glass spheres on an optical waveguide. The evanescent field from the waveguide interacts mostly with the shell of the hollow glass sphere. We describe how the optical forces vary with shell thickness and particle size, and find the minimum shell thickness allowing trapping and propulsion of hollow glass spheres. Hollow glass spheres with shell thickness less than the minimum are repelled away from the optical waveguide. The simulation results are compared with analytical Mie calculations and experimental data.

Citation Download Citation

Pål Løvhaugen, Balpreet S. Ahluwalia, and Olav G. Hellesø "Optical waveguide trapping forces on hollow glass spheres", Proc. SPIE 7950, Complex Light and Optical Forces V, 79500P (16 February 2011); https://doi.org/10.1117/12.873772

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