PT Journal
AU Pyatkov, F
   Khasminskaya, S
   Kovalyuk, V
   Hennrich, F
   Kappes, MM
   Goltsman, GN
   Pernice, WHP
   Krupke, R
TI Sub-nanosecond light-pulse generation with waveguide-coupled carbon nanotube transducers
SO Beilstein J. Nanotechnol.
JI Beilstein J. Nanotechnol.
PY 2017
BP 38
EP 44
VL 8
DI 10.3762/bjnano.8.5
DE carbon nanotubes; CNT; infrared; integrated optics devices; nanomaterials
AB 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.
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