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Nature 440, 431-433 (23 March 2006) | doi:10.1038/440431a; Published online 22 March 2006
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Gastroenterologist
- Wayne State University
- Detroit, Michigan, USA
John Innes Centre Project Leader in Plant or Microbial Sciences
- University of East Anglia
- Norwich, NR4 7TJ, UK
Solid-state physics: Light at the end of the channel
Francisco J. Garcia-Vidal1
Abstract
If photonic circuits are ever to compete with their electronic counterparts, strong confinement of light waves coupled with low propagation losses is needed. A new class of waveguides offers both.
Miniaturized circuits that use light to carry digital information would be inherently faster than conventional electronic circuits, and have a capacity thousands of times greater. But there's a snag: the development of practical, small photonic components is impeded by the diffraction limit — the fact that light will spread out on passing through any region narrower than its wavelength.
- Francisco J. Garcia-Vidal is in the Departamento de Física Teórica de la Materia Condensada, Universidad Autónoma de Madrid, Madrid 28049, Spain.
Email: fj.garcia@uam.es
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