Two Colors is Better than One
Optics & Photonics Focus
Volume 7 Story 7 - 14/12/2009

A hollow-core photonic crystal fiber (PCF)

Scanning electron microscope (SEM) image of the cross-section of a hollow-core PCF. Most of the light is transmitted in the hollow-core.
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A hollow-core photonic crystal fiber (PCF). Scanning electron microscope (SEM) image of the cross-section of a hollow-core PCF. Most of the light is transmitted in the hollow-core.