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Single-Mode Photonic Band Gap Guidance of Light in Air

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Science  03 Sep 1999:
Vol. 285, Issue 5433, pp. 1537-1539
DOI: 10.1126/science.285.5433.1537

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Abstract

The confinement of light within a hollow core (a large air hole) in a silica-air photonic crystal fiber is demonstrated. Only certain wavelength bands are confined and guided down the fiber, each band corresponding to the presence of a full two-dimensional band gap in the photonic crystal cladding. Single-mode vacuum waveguides have a multitude of potential applications from ultrahigh-power transmission to the guiding of cold atoms.

  • * To whom correspondence should be addressed. E-mail: pyspsjr{at}bath.ac.uk

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