Dielectrophoretically tuneable optical waveguides using nanoparticles in microfluidics

Kalantar-zadeh, K.; Khoshmanesh, K.; Kayani, A. A.; Nahavandi, S.; Mitchell, A.
March 2010
Applied Physics Letters;3/8/2010, Vol. 96 Issue 10, p101108
Academic Journal
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.


Related Articles

  • Recent developments in optofluidic-surface-enhanced Raman scattering systems: Design, assembly, and advantages. Yin Yin; Teng Qiu; Wenjun Zhang; Chu, Paul K. // Journal of Materials Research;1/28/2011, Vol. 26 Issue 2, p170 

    Surface-enhanced Raman scattering (SERS) coupled with micro- or nanofluidics integrated into optofluidic devices offer many advantages over conventional SERS conducted under static conditions. Higher reproducibility, larger intensity, as well as greater enhancement can be achieved by efficient...

  • Integrated silicon optofluidic ring resonator. Testa, Genni; Huang, Yujian; Sarro, Pasqualina M.; Zeni, Luigi; Bernini, Romeo // Applied Physics Letters;9/27/2010, Vol. 97 Issue 13, p131110 

    The feasibility of an integrated silicon optofluidic ring resonator is demonstrated. Liquid core antiresonant reflecting optical waveguides are used to realize a rectangular ring resonator with a multimode interference liquid core coupler between the ring and the bus waveguide. In this...

  • On-chip surface-enhanced Raman scattering detection using integrated liquid-core waveguides. Measor, Philip; Seballos, Leo; Yin, Dongliang; Zhang, Jin Z.; Lunt, Evan J.; Hawkins, Aaron R.; Schmidt, Holger // Applied Physics Letters;5/21/2007, Vol. 90 Issue 21, p211107 

    The authors demonstrate surface-enhanced Raman scattering (SERS) detection on an optofluidic chip. Interconnected solid- and liquid-core antiresonant reflecting optical waveguides (ARROWs) form a planar beam geometry that allows for high mode intensities along microfluidic channels containing...

  • Fabrication of hollow optical waveguides in fused silica by three-dimensional femtosecond laser micromachining. He, F.; Lin, J.; Cheng, Y. // Applied Physics B: Lasers & Optics;Nov2011, Vol. 105 Issue 2, p379 

    We report on the fabrication of hollow optical waveguides in fused silica using femtosecond laser micromachining. We show that in such hollow waveguides, high-intensity femtosecond laser beams can be guided with low optical loss. Our technique, which was established earlier for fabrication of...

  • Optical sensing in microfluidic lab-on-a-chip by femtosecond-laser-written waveguides. Vazquez, Rebeca Martinez; Osellame, Roberto; Cretich, Marina; Chiari, Marcella; Dongre, Chaitanya; Hoekstra, Hugo J. W. M.; Pollnau, Markus; Van den Vlekkert, Hans; Ramponi, Roberta; Cerullo, Giulio // Analytical & Bioanalytical Chemistry;Feb2009, Vol. 393 Issue 4, p1209 

    We use direct femtosecond laser writing to integrate optical waveguides into a commercial fused silica capillary electrophoresis chip. High-quality waveguides crossing the microfluidic channels are fabricated and used to optically address, with high spatial selectivity, their content....

  • Pneumatic control of a liquid-core/liquid-cladding waveguide as the basis for an optofluidic switch. Lim, Jong-Min; Urbanski, John Paul; Thorsen, Todd; Yang, Seung-Man // Applied Physics Letters;1/24/2011, Vol. 98 Issue 4, p044101 

    We have developed a 2×3 optofluidic switch based on the pneumatic control of a liquid-core/liquid-cladding (L2) waveguide using monolithic microvalves in a multilayer poly(dimethylsiloxane) microfluidic device. In the proposed system, the incident beam to be coupled to the L2 waveguide and...

  • In-Situ Thiol-Modified Silica Nanoparticles. Hernández-Padrón, G.; Rodríguez, R.; Castañro, V. M. // Internet Journal of Nanotechnology;2005, Vol. 1 Issue 2, p2 

    In situ organically-modified silica nanoparticles were produced by the co-reaction of TetraMethOxySilane (TMOS), a standard sol-gel precursor and organofunctional alcoxysilanes. The hydrolysis and condensation reactions, as compared to those of pure silica, were followed by Dynamical Light...

  • Optofluidic microsystems for chemical and biological analysis. Fan, Xudong; White, Ian M. // Nature Photonics;Oct2011, Vol. 5 Issue 10, p591 

    Optofluidics - the synergistic integration of photonics and microfluidics - is a new analytical field that provides a number of unique characteristics for enhancing the sensing performance and simplifying the design of microsystems. This Review describes various optofluidic architectures...

  • Straight and Curved Silica Nano-Ridges Connections Based on Fluidic Approach for Hybrid Integrated Photonics. Doré, F.; Camberlein, L.; Duval, D.; Huby, N.; Gaviot, E.; Artzner, F.; Bêche, B. // Nonlinear Optics, Quantum Optics: Concepts in Modern Optics;2012, Vol. 43 Issue 1-4, p319 

    We report a practical and novel approach based on reproducible fluidic mechanisms coupled with silica nano-particles for the development of nano-optical-connections directly on organic integrated photonic chips. Silica nano-ridge waveguides have been shaped with various widths ranging between 50...


Read the Article


Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics