We studied high-order harmonic generation (HHG) in graphene driven by either linearly or
elliptically polarized mid-infrared (MIR) light, and we additionally applied terahertz (THz) …

Cascaded nonlinear optical interactions are analyzed for their potential to overcome
quantum-defect related limitations on the efficiency of terahertz wave difference-frequency …

Graphene is a nonlinear material in the terahertz (THz) frequency range, with χ (3)∼ 10–9
m2/V2∼ 15 orders of magnitude higher than that of other materials used in the THz range …

Terahertz technology promises myriad applications including imaging, spectroscopy and
communications. However, one major bottleneck at present for advancing this field is the …

Nonlinear dynamics of free carriers in direct bandgap semiconductors at terahertz (THz)
frequencies is studied using the intense few-cycle source available at the Advanced Laser …

The feasibility of bulk semiconductors subjected to strong periodic electric fields for terahertz
radiation generation due to the high-order harmonic extraction is analyzed by using Monte …

The generation of high-energy narrowband terahertz radiation has gained heightened
importance in recent years due to its potentially transformative impact on spectroscopy, high …

Nonlinear terahertz conductivity spectra of charges confined in semiconductor
nanostructures were calculated using a semiclassical Monte Carlo method. The confinement …

High harmonic generation (HHG) spectroscopy has emerged as an invaluable tool for
studying electronic dynamics and structure in crystals. The primary challenges are imposed …

We report the emission of high-field terahertz pulses from a GaAs large-area
photoconductive emitter pumped with a Ti: Sapphire amplifier laser system at 800 nm …