The University of Twente (UT), Netherlands, and the Fraunhofer Project Center recently demonstrated a photonic integrated circuit (PIC) device assembler designed to enable large-scale PIC production. Image courtesy of Yole Developpement.
Dr Laingâ€™s laboratory where the experiments were performed. Single
photons of light are generated using a powerful Ti-Sapphire laser, to
pump a series of nonlinear crystals, operated by PhD student and
co-author Nicola Maraviglia (left). The single photons are collected
into optical fibres and injected into the photonic chip, next to Laing
(right). Inset top left is a close up of the photonic chip taken by NTT
scientist and co-author, Nobuyuki Matsuda.
University of Bristol
Plastic deformation of crystalline materials is
caused by nucleation and multiplication of dislocations under an external force
(A and B). It has been generally believed that brittle inorganic semiconducting
materials have difficulty in formation of dislocations because of their strong
chemical bonds. However, researchers found that a great number of dislocations
are generated and multiplied in ZnS crystals during deformation in darkness
(C), resulting in the extraordinary plasticity that researchers observed. Image courtesy of Atsutomo Nakamura.