Extremely Nonperturbative Nonlinearities in GaAs Driven by Atomically Strong Terahertz Fields in Gold Metamaterials

C. Lange, T. Maag, M. Hohenleutner +6

Terahertz near fields of gold metamaterials resonant at a frequency of $0.88\mathrm{THz}$ allow us to enter an extreme limit of non-perturbative ultrafast THz electronics: Fields reac…