| Popis: |
In this paper, the use of a 2D meta-surface for the optical trapping and directed movement of spherical nanoparticles is explored. Using the Discrete Dipole Approximation, we calculate the optical forces that occur when a spherical nanoparticle moves across a surface constructed of tessellated equilateral triangles. We calculate that given sufficient optical power, choice of optical materials, and wavelengths, it is possible to use a meta-surface to guide micron sized particles in a direction dictated by the geometry of the surface. Furthermore, we suggest several experimental methods of verifying the results which are also discussed in detail. |
