Silicon Spheres in Diamond Structure


Sphere diameter ~ 330 nm gives photonic gap at λ = 1550 nm

K. M. Ho, C. T. Chan, and C. M. Soukoulis, Phys. Rev. Lett. 65, 3152 (1990).
Assembly using a nanorobot attached to a Scanning Electron Microscope. A probe is controlled with high accuracy (a few nanometers) and is used to pick and position the particles.
http://www.icmm.csic.es/cefe/Fab/Robot/robot_realization.htm