A waveguide with carbon nanotubes

The transmission of light over long distances has long been a daily occurrence. Fiber-opticcommunication cables stretched for tens of thousands of kilometers, literally girding the whole world. Nevertheless, the use of all the advantages of light signals on the scale of computers and microchips. However, scientists from Germany have discovered that carbon nanotubes can be used as a source of light in nanostructured waveguides.

KIT specialists have integrated carbon nanotubes into a nanostructured waveguide. As a result, a compact miniature switching element was developed that converts electrical signals into optical signals.

Carbon nanotubes measuring 1 micrometer in length and 1 nanometer in diameter of the waveguide. Also, a technology was created, with which nanotubes are integrated into complex structures.

Researchers, using the dielectrophoresis method, were able to achieve the deposition of nanotubes from the solution and arranged them in the section of the waveguide, where they become sources of light as the current passes .

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