Self-assembled fibre optoelectronics with discrete translational symmetry
Author(s)Rein, Michael; Levy, Etgar Claude; Gumennik, Alexander; Abouraddy, Ayman F; Joannopoulos, John; Fink, Yoel; ... Show more Show less
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Fibres with electronic and photonic properties are essential building blocks for functional fabrics with system level attributes. The scalability of thermal fibre drawing approach offers access to large device quantities, while constraining the devices to be translational symmetric. Lifting this symmetry to create discrete devices in fibres will increase their utility. Here, we draw, from a macroscopic preform, fibres that have three parallel internal non-contacting continuous domains; a semiconducting glass between two conductors. We then heat the fibre and generate a capillary fluid instability, resulting in the selective transformation of the cylindrical semiconducting domain into discrete spheres while keeping the conductive domains unchanged. The cylindrical-to-spherical expansion bridges the continuous conducting domains to create ∼10⁴ self-assembled, electrically contacted and entirely packaged discrete spherical devices per metre of fibre. The photodetection and Mie resonance dependent response are measured by illuminating the fibre while connecting its ends to an electrical readout.
DepartmentMassachusetts Institute of Technology. Department of Materials Science and Engineering; Massachusetts Institute of Technology. Department of Physics; Massachusetts Institute of Technology. Research Laboratory of Electronics
Nature Publishing Group
Rein, Michael, Etgar Levy, Alexander Gumennik, Ayman F. Abouraddy, John Joannopoulos, and Yoel Fink. “Self-Assembled Fibre Optoelectronics with Discrete Translational Symmetry.” Nature Communications 7 (October 4, 2016): 12807.
Final published version