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

Pyatkov, Felix and Khasminskaya, Svetlana and Kovalyuk, Vadim and Hennrich, Frank and Kappes, Manfred M. and Goltsman, Gregory N. and Pernice, Wolfram H. P. and Krupke, Ralph (2017):
Sub-nanosecond light-pulse generation with waveguide-coupled carbon nanotube transducers.
In: Beilstein Journal of Nanotechnology, 8pp. 38-44, ISSN 2190-4286,
[Online-Edition: http://doi.org/10.3762/bjnano.8.5],
[Article]

Abstract

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.

Item Type: Article
Erschienen: 2017
Creators: Pyatkov, Felix and Khasminskaya, Svetlana and Kovalyuk, Vadim and Hennrich, Frank and Kappes, Manfred M. and Goltsman, Gregory N. and Pernice, Wolfram H. P. and Krupke, Ralph
Title: Sub-nanosecond light-pulse generation with waveguide-coupled carbon nanotube transducers
Language: English
Abstract:

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.

Journal or Publication Title: Beilstein Journal of Nanotechnology
Volume: 8
Uncontrolled Keywords: carbon nanotubes; infrared; integrated optics devices; nanomaterials
Divisions: 11 Department of Materials and Earth Sciences
11 Department of Materials and Earth Sciences > Material Science
11 Department of Materials and Earth Sciences > Material Science > Fachgebiet Molekulare Nanostrukturen
Date Deposited: 24 Apr 2017 05:57
Official URL: http://doi.org/10.3762/bjnano.8.5
Identification Number: doi:10.3762/bjnano.8.5
Funders: We thank "Superconducting nanotechnology" (SCONTEL) for providing SNSPDs as well as Dr. S. Lebedkin for comments that greatly improved the manuscript. We also gratefully thank S. Diewald and S. Kühn for the help with device fabrication.
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