Abstract

We present the use of a linearly down-tapered gas-filled hollow-core photonic crystal fiber in a single stage, pumped with pulses from a compact infrared (IR) laser source, to generate a supercontinuum (SC) carrying significant spectral power in the deep ultraviolet (UV) [200–300 nm]. The generated SC extends from the near IR down to ${\sim}{213}\;{\rm nm}$ with 0.58 mW/nm and down to ${\sim}{220}\;{\rm nm}$ with 0.83 mW/nm in the deep UV.

© 2021 Optical Society of America

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Data Availability

Data underlying the results presented in this Letter are not publicly available at this time but may be obtained from the authors upon reasonable request.

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