Single-Mode Photonic Band Gap Guidance of Light in Air.

Cregan, RF; Mangan, BJ; Knight, JC; Birks, TA; Russell, PS; Roberts, PJ; Allan, DC · Science · 1999

basic_science · Level V

Where this comes from

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.