(Invited) Carbon Nanotube Based Photonics

Abstract

Semiconducting carbon nanotubes (s-SWNT) are efficiently extracted from a raw nanotube powder using an ultracentrifugation method with a conjugated polymer as extracting agent. This method leads to obtention of almost metallic-free s-SWNT samples, displaying strong photoluminescence properties. An integration scheme to couple s-SWNT optical properties with silicon waveguide using processes compatible with silicon technology is proposed, and we demonstrated the emission of s-SWNT throught the silicon waveguide at a wavelength of 1.3 µm. This integration scheme is used to couple s-SWNT with silicon microring resonators. Sharp emission peaks originating from light coupled and resonating inside the microring are observed, with quality factors around 3000.