Researchers demonstrate high-efficiency emission of dispersive wave in gas-filled hollow-core photonic crystal fibers

In the past decade, anti-resonant, hollow-core photonic crystal fibers (HC-PCFs) have become excellent platforms for studying ultrafast nonlinear optics such as ultrashort pulse compression to the single-cycle regime, efficient generation of tunable dispersive wave (DW) at deep and vacuum ultraviolet wavelengths and soliton-plasma interactions.