UiT The Arctic University of Norway
Postboks 6050 Langnes
970 422 528
Integrated optics: MicroMove
Research on integrated optics is concentrated on the project MicroMove
The aim is to build a lab-on-chip device that integrates active optical functions for manipulation, detection and sorting of micro- and nanoparticles. The Research Council of Norway has given funding for the project till the end of 2010. The funding includes processing, one PhD-position and one post-doc position, with 6 mill. NOK in total, thru the projects "Optical functions and Lab-on-a-Chip for microparticles and biomedicine" from FRINAT and "Nanostructures for optics" from the NANOMAT-program.
We have collaboration with several researchers nationally and internationally:
- Professor James Wilkinson, ORC University of Southampton , UK
- Professor Aasmund Sudbø University of Oslo, Norway
- Dr. Stéphane Getin, CEA LETI, Grenoble, France
- Professor Xuyuan Chen (Vestfold University College, )Norway
- Professor Per Jakobsen, Department of Mathematics and Statistics, University of Tromsø
Figure 2. Sequence of images illustrating a
chain formation of polystyrene particles
propelled on top of a waveguide. Laser light
was launched from the right hand side.
However, whereas optical tweezers can manipulate particles in three dimensions, our approach is limited to the two dimensions of the waveguide surface.
|A simple Y-branched waveguide structure as shown in Figure 1 can be used to sort particles. Changing the position of the input fibre changes the evanescent field distribution and thus sends a chosen particle down the desired output waveguide branch. |
Clikk Figure 4. to run a movie of a rotating cluster of three 10 µm diameter particles and a 4-particle chain propelled on top of a waveguide.
Some relevant articles:
K. Grujic, and O.G. Hellesø, "Dielectric microsphere manipulation and chain assembly by counter-propagating waves in a channel waveg-
uide", Optics Express, 15 (2007) 6470-6477.
J.P. Hole, J.S. Wilkinson, K. Grujic, O.G. Hellesø, "Velocity distribution of Gold nanoparticles trapped on an optical waveguide", Optics Express 13 (2005) 3896-3901.
H.Y. Jaising, K. Grujic and O.G. Hellesø, "Simulations and velocity measurements for a microparticle in an evanescent field" Optical Review 12 (1): 4-6 (2005)
H.Y. Jaising and O.G. Hellesø, "Radiation forces on a Mie particle in the evanescent field of an optical waveguide", Optics Comm. 246 (2005): 373-383.
K. Grujic, O.G. Hellesø, J.S. Wilkinson, J.P. Hole, "Sorting of polystyrene microspheres using a Y-branched optical waveguide", Optics Express 13 (2005) 1-7.
K. Grujic, O.G. Hellesø, J.S. Wilkinson and J.P. Hole, "Optical propulsion of microspheres along a channel waveguide produced by Cs+ ion-exchange in glass", Optics Communications, 239, 227-235 (2004)
If you are interested in more information, collaboration, PhD- or MSc-projects, please contact Olav Gaute Hellesø