Sub-nanosecond light-pulse generation with waveguide-coupled carbon nanotube transducers

Beilstein Journal of Nanotechnology

Gregory N. Goltsman¹  Svetlana Khasminskaya²  Frank Hennrich²  Ralph Krupke²  Manfred M. Kappes²  Felix Pyatkov²  Vadim Kovalyuk²  Wolfram H. P. Pernice³ 

[1] Department of Physics, Moscow State Pedagogical University, Moscow 119992, Russia;Institute of Nanotechnology, Karlsruhe Institute of Technology, Karlsruhe 76021, Germany;Institute of Physics, University of Münster, Münster 48149, Germany;

关键词: carbon nanotubes;    infrared;    integrated optics devices;    nanomaterials;   

DOI  :  10.3762/bjnano.8.5

来源: DOAJ

【 摘 要 】

Carbon nanotubes (CNTs) have recently been integrated into optical waveguides and operated as electrically-driven light emitters under constant electrical bias. Such devices are of interest for the conversion of fast electrical signals into optical ones within a nanophotonic circuit. Here, we demonstrate that waveguide-integrated single-walled CNTs are promising high-speed transducers for light-pulse generation in the gigahertz range. Using a scalable fabrication approach we realize hybrid CNT-based nanophotonic devices, which generate optical pulse trains in the range from 200 kHz to 2 GHz with decay times below 80 ps. Our results illustrate the potential of CNTs for hybrid optoelectronic systems and nanoscale on-chip light sources.

【 授权许可】

Unknown