Theoretical investigation of the transverse optical force between a silicon nanowire waveguide and a substrate | Zendy

Wolfram H. P. Pernice | Zendy; Mo Li | Zendy; Hong X. Tang | Zendy

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Theoretical investigation of the transverse optical force between a silicon nanowire waveguide and a substrate

Author(s) -

Wolfram H. P. Pernice,

Mo Li,

Hong X. Tang

Publication year - 2009

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.17.001806

Subject(s) - optical force , transverse plane , waveguide , nanowire , optics , silicon , materials science , finite element method , dielectric , formalism (music) , silicon nanowires , nanophotonics , optoelectronics , physics , optical tweezers , art , musical , structural engineering , visual arts , thermodynamics , engineering

We present a study of transverse optical forces arising in a free-standing silicon nanowire waveguide. A theoretical framework is provided for the calculation of the optical forces existing between a waveguide and a dielectric substrate. The force is evaluated using a numerical procedure based on finite-element simulations. In addition, an analytical formalism is developed which allows for a simple approximate analysis of the problem. We find that in this configuration optical forces on the order of pN can be obtained, sufficient to actuate nano-mechanical devices.

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