When physicists at the ARC Centre for Transformative Meta-Optical Systems (TMOS) needed a key component for their terahertz experiments, they ran into a frustrating problem—they needed tiny optical devices, known as wire-grid polarizers, but these cost thousands of dollars each. “We were doing experiments in the terahertz frequency range and figured that some of the […]
Terahertz (THz) radiation, which has applications in the imaging of objects, non-destructive testing, satellite communication, medical diagnostics, and biosensing, has generated a great deal of attention due to its remarkable properties. This paper proposes a novel broadband filter for THz applications. The main idea is to overcome the insertion loss and bandwidth issues by modeling a frequency-d…
Nature Communications, Published online: 29 July 2026; doi:10.1038/s41467-026-76228-6 Authors demonstrate spatiotemporal shaping of terahertz pulses generated through gas-phase photoionization using a two-color ultrashort flying focus. The approach enables tunable spatial and temporal pulse characteristics, offering a versatile platform for nonlinear optics and advanced terahertz source engineeri…
