Towards carbon nanotube-based integrated photonics devices

摘要

In this paper, we first review and compare the two main techniques allowing to purify and extract selectively semiconducting single-walled carbon nanotubes (s-swnt)). These purification steps are essential to obtain an optical-quality material. Such material is then suitable for optical applications and photonic devices. We present two major advances in carbon nanotubes optics and photonics: on one hand, the demonstration of optical gain in s-SWNT by two independent methods, with modal gain as high as 160 ± 10 cm~(-1) at 1.3 μm and on the other hand, the integration of swnt in silicon-on-insulator (soi) platform as a potential material for integrated photonic devices. Overall coupling efficiency could be estimated up to 10~(-1).