GaAs/polymer optical nanowires: fabrication and characterisation

The fabrication and propagation loss measurement of GaAs/polymer optical nanowires are reported. Their design consists of a 300×300 nm cross-section GaAs core buried into a polymer matrix bonded on a Si host substrate. The propagation loss at λ=1.55 µm is measured as about 5 dB/mm for both polarisations.