21 Apr '16, 7pm

Nanotubes Serve as Light Emitter in Integrated Photonic Circuit

Nanotubes Serve as Light Emitter in Integrated Photonic Circuit

Using fiber optic cables as waveguides for transmitting light that is ultimately converted into voice calls or data has been a mainstay for the telecommunications industry for decades. But it’s been a massive struggle to adapt this kind of technology to the scale of a microchip so that photons carry data through an integrated circuit instead of electrons. Now researchers at Karlsruhe Institute of Technology (KIT) in Germany have tackled a major problem in making integrated optical circuits a reality by creating nanoscale photonic emitters with tailored optical properties that can be easily integrated into a chip. The solution involves carbon nanotubes (CNTs) that are electrically driven to emit light. The CNTs don’t take up much room in the nanostructured waveguide and have proven effective in converting an electrical signal into clearly defined optical signals. When the C...

Full article: http://spectrum.ieee.org/nanoclast/semiconductors/optoele...

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