The phase and the group velocity of light propagating in conventional optical media cannot exceed the speed of light in ...

Terahertz radiation (THz), electromagnetic radiation with frequencies ranging from 0.1 and 10 THz, is central to the ...

Terahertz (THz) quantum cascade lasers (QCLs) are a cutting-edge technology that operates in the terahertz frequency range ... as opposed to pulsed output. Absorption Spectroscopy: A technique ...

Terahertz (THz): A frequency range of electromagnetic radiation between microwave and infrared, typically from 0.1 to 10 THz. Quantum Cascade Laser (QCL): A type of semiconductor laser that emits ...

Thin-disk single-cavity dual-comb lasers (TDSCs) offer a promising alternative to traditional dual-comb systems, simplifying ...

Then, when hit with a terahertz laser, the atoms are stimulated to the same frequency as the material’s collective vibration, or “phonons.” This nudges FePS 3 out of its antiferromagnetic balance and ...

A novel method transforms common liquids into epsilon-near-zero materials using femtosecond laser pulses, enabling unique ...

Abstract: We propose and experimentally demonstrate a terahertz (THz) source based on optical rectification in lithium niobate wafers driven by an ultrafast ytterbium laser. Terahertz pulses with a ...

Elad Harel is used to shining a light on the mysteries of the natural world. Working at the cutting-edge of ultrafast ...