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Dielectrophoretically tuneable optical waveguides using nanoparticles in microfluidics

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journal contribution
posted on 2010-01-01, 00:00 authored by K Kalantar-zadeh, Khashayar Khoshmanesh, A Kayani, Saeid Nahavandi, A Mitchell
We present a tuneable optical waveguide using dielectrophoretically controlled nanoparticles in microfluidics. Silicon dioxide nanoparticles of different sizes in de-ionized water are channelled through a microfluidic system. An array of microelectrodes generates the dielectrophoretic force to funnel nanoparticles, forming narrowbands at the center of the microfluidics at different applied voltages and frequencies. It is observed that these narrowbands either scatter or guide the coupled light under selected conditions. The realization of such a system offers exciting possibilities for the development of a new class of optofluidics, which are tuned by the positioning of nanoparticles on demand.

History

Journal

Applied physics letters

Volume

96

Pagination

1 - 3

Location

Melville, N.Y.

Open access

  • Yes

ISSN

0003-6951

eISSN

1077-3118

Language

eng

Publication classification

C1 Refereed article in a scholarly journal

Copyright notice

2010, American Institute of Physics

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