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

W. H.P. Pernice, Mo Li, H. X. Tang

Research output: Contribution to journalArticlepeer-review

62 Scopus citations

Abstract

We present a study of transverse optical forces arising in a freestanding 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.

Original languageEnglish (US)
Pages (from-to)1806-1816
Number of pages11
JournalOptics Express
Volume17
Issue number3
DOIs
StatePublished - Feb 2 2009

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