New practical approach of integrated photonic based on biomimetic peptidic/silica self-assembled nanotubes

International audience; We report on the first developments for a new approach of integrated photonic using optical evanescent coupling from organic microstructures to bundles of hybrid nanotubes (NT). Microstructures are organic disks acting as photon reservoirs, integrated on a photonic chip fabricated by micro-technologic processes. Biomimetic peptidic/ silica nanotubes are realized by molecular self-assembly allowing high aspect ratio. Such heterostructures have been included directly on the organic chip as an innovative solution based on nanotubes in situ chipapproach. The latter allowed us to obtain an adequate evanescent coupling localized between micronic-disks and bundles of nanotubes. As a result, we highlight a specific photonic propagation along various heterostructured- NT-bundles featuring distances beyond the centimeter and losses from 1.2 to 6.6 dB/cm. It presents an advantageous confinement of the optical mode marked with strong energy localizations between nanotubes.