Left and middle: single-core optoelectronic fibre. Left and middle: optical images of the side-view (left) and cross-section (middle) of the single-core optoelectronic fibre, where the core semiconductor is connected to each copper electrode through a layer of CPC. Right: The resulting optoelectronic fibre shows a pseudo-omnidirectional response that maintains sensitivity for different directions. PC, polycarbonate. Scale bars, 50 m.
