This Collection brings together original research on high harmonic generation, focusing on the underlying physical mechanisms and on the next generation of experimental setups. It also highlights the ...

Figure | Schematic of the experimental configuration to generate and detect THz third harmonic generation. A multicycle driving field at the frequency w is transmitted through a lowpass filter. Inside ...

Scientists have achieved a breakthrough in light manipulation by using topological insulators to generate both even and odd terahertz frequencies through high-order harmonic generation (HHG). By ...

Researchers developed a nonlinear nonlocal metasurface that converts infrared light to visible and steers it by combining ...

A new publication from Opto-Electronic Advances; DOI 10.29026/oea.2026.250193, discusses how electric-field-induced ...

The need for improvements in terahertz-spectrum sources. How lasers and graphene layers are being used to create harmonics into the THz band. The multiple experiments that were run and the overview of ...

Vacuum ultraviolet (VUV, 100–200 nm) light sources are indispensable for advanced spectroscopy, quantum research, and semiconductor lithography. Although second harmonic generation (SHG) using ...