Perspective: Hollow Core Optical Fibres for Ultraviolet and Visible Wavelengths

Anti-resonant hollow core fibres have significant advantages derived from the guidance of light in air, and have been rapidly developed and employed in the near and mid-infrared. Despite comparable or greater benefits in the visible and ultraviolet, their development and uptake has been slow due to inherent challenges in their fabrication. In this perspective, we provide a brief look at these fabrication challenges, possible solutions and potential applications for hollow core fibres in the short-wavelength limit.