Resonance-enhanced multi-octave supercontinuum generation in antiresonant hollow-core fibers.

ABSTRACT: Ultrafast supercontinuum generation in gas-filled waveguides is an enabling technology for many intriguing applications ranging from attosecond metrology towards biophotonics, with the amount of spectral broadening crucially depending on the pulse dispersion of the propagating mode. In this study, we show that structural resonances in a gas-filled antiresonant hollow core optical fiber provide an additional degree of freedom in dispersion engineering, which enables the generation of more than three octaves of broadband light that ranges from deep UV wavelengths to near infrared. Our observation relies on the introduction of a geometric-induced resonance in the spectral vicinity of the ultrafast pump laser, outperforming gas dispersion and yielding a unique dispersion profile independent of

SUBMITTER: Sollapur R 

PROVIDER: S-EPMC6062021 | biostudies-literature | 2017 Dec

REPOSITORIES: biostudies-literature