2024/02/14 by R.J. Mears, Kerrianne Harrington, W. J. Wadsworth +3 · 1 voice · 4 citations
Engineering · Chemistry · Physics and Astronomy · #Photonic Crystal and Fiber Optics #Spectroscopy and Laser Applications #Advanced Fiber Laser Technologies
paper · doi:10.1364/oe.509212
openalex publication_date 2024/02/14 · openalex created_date 2025/10/10 · openalex updated_date 2026/06/11
We report an anti-resonant hollow core fibre with ultraviolet transmission down to 190 nm, covering the entire UV-A, UV-B and much of the UV-C band. Guidance from 190 - 400 nm is achieved apart for a narrow high loss resonance band at 245 - 265 nm. The minimum attenuation is 0.13 dB/m at 235 nm and 0.16 dB/m at 325 nm. With an inscribed core diameter of ∼12 µm, the fibre's bend loss at 325 nm was 0.22 dB per turn for a bend radius of 3 cm at 325 nm.