We theoretically study the terahertz-induced high-order harmonic generation (HHG) and
nonlinear electric transport in graphene based on the quantum master equation with the …

New applications in the realms of terahertz (THz) technology require versatile adaptive
optics and powerful modulation techniques. Semiconductors have proven to provide fast all …

Cascaded quadratic optical nonlinearities are well known for producing effective third‐order
nonlinear optical effects such as self‐phase modulation or self‐steepening. As a result, they …

Highly-efficient optical generation of narrowband terahertz radiation enables unexplored
technologies and sciences from compact electron acceleration to charge manipulation in …

This paper reviews recent experiments on the generation of free-space terahertz (THz)
radiation by all-optical excitation of semiconductor nanostructures using second-order …

Graphene possesses large Kerr nonlinearities that enabled the realization of energy-
efficient nonlinear optical devices. At the same time, electronic scattering of graphene …

We report on the third harmonic generation (THG) in InSb semiconductor irradiated by a
terahertz (THz) free electron laser (FEL). The conversion of 4? THz (wavelength 70? µm) …

We overview methods of THz-wave generation using frequency down-conversion in GaAs
with periodically-inverted crystalline orientation. First, we compare different nonlinear-optical …

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The nonlinear interaction of subcycle electromagnetic radiation with matter is the current
frontier in ultrafast nonlinear optics and high-field physics. Here, we investigate nonlinear …