Universal route to optimal few- to single-cycle pulse generation in hollow-core fiber compressors.

ABSTRACT: Gas-filled hollow-core fiber (HCF) pulse post-compressors generating few- to single-cycle pulses are a key enabling tool for attosecond science and ultrafast spectroscopy. Achieving optimum performance in this regime can be extremely challenging due to the ultra-broad bandwidth of the pulses and the need of an adequate temporal diagnostic. These difficulties have hindered the full exploitation of HCF post-compressors, namely the generation of stable and high-quality near-Fourier-transform-limited pulses. Here we show that, independently of conditions such as the type of gas or the laser system used, there is a universal route to obtain the shortest stable output pulse down to the single-cycle regime. Numerical simulations and experimental measurements performed with the dispersion-scan tec

SUBMITTER: Conejero Jarque E 

PROVIDER: S-EPMC5797182 | biostudies-literature | 2018 Feb

REPOSITORIES: biostudies-literature