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Optical physics

Optical physics

New look for optical fibres

20 Nov 1998

A fundamentally new type of optical fibre has been developed by physicists at Bath University in the UK. The fibre takes advantage of a hollow honeycomb structure to create a "photonic band-gap" effect that prevents light of certain wavelengths escaping (Science 282 1476). The new fibre displays "extraordinary properties" according to Jonathan Knight, a member of the team that developed it.

Fibre-optic cables usually consist of an inner core of highly refractive glass sheathed inside glas

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