Self-assembled fibre optoelectronics with discrete translational symmetry

TitleSelf-assembled fibre optoelectronics with discrete translational symmetry
Publication TypeJournal Article
Year of Publication2016
AuthorsRein, M, Levy, E, Gumennik, A, Abouraddy, AF, Joannopoulos, JD, Fink, Y
JournalNature Communications
Date Published2016/10/04/
ISBN Number2041-1723
Keywordsmultifunctional fibers, piezoelectric fibers, resonator, scattering, spheres

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 noncontacting 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 B104 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.

Short TitleNat. Commun.