Guide to Gas-Based Nonlinear Fiber Optics:
Introduction to Hollow-Core Fibers (HCF)
Here we introduce several types of HCFs which is the foundation of gas-based nonlinear fiber optics.
Raman Scattering Regimes
Raman scattering plays out differently due to pulse duration, dephasing time, and Raman cycle, which results in three Raman regimes. In this section, we introduce the nonlinear phenomena that accompany each regime.
A strong pulse can induce ionization of the gas molecules which results in, for example, photoionization-induced blue shifting and epsilon-near-zero regime.