Test & Measurement

False color picture of the watermark of a €20 bank note, showing the amplitude of the transmitted terahertz electrical field signal with varying optical parameters of the material; the highest amplitude is shown in red, and the lowest in blue. The image was recorded by Menlo Systems’ TERA K15 THz-TDS system with TERA Image imaging extension unit and ImageLab processing software.
Terahertz time-domain spectroscopy has undergone a quiet evolution and is now moving from research labs onto production lines.
Oct. 30, 2025
Credit: University of Trento
FIGURE 1. Measurement setup at Professor Lobino’s quantum lab at the University of Trento; the chip is inside an oven to control its temperature, while electric signals reach the device through the black SMA cable. Credit: University of Trento
Oct. 22, 2025
Credit: Sheetak
sheetak
Oct. 20, 2025
Credit: Zygo
zygo
Oct. 16, 2025
Credit: Teledyne DALSA
teledyne_dalsa
Oct. 12, 2025
Credit: Eric Sucar/University of Pennsylvania
FIGURE 1. Li He (left) and Bo Zhen (right) in the lab with their photonic crystal platform that enables guiding light in a forward-only direction around a chip’s defects and bends. Credit: Eric Sucar/University of Pennsylvania
Oct. 2, 2025
Credit: D. Antón, J. Mayoral-Valsera, M. D. Simón-Vallejo, R. Parrilla-Giráldez, and M. Cortés-Sánchez, J. Archaeol. Sci., 181, 106330 (Sep. 2025); https://doi.org/10.1016/j.jas.2025.106330; Licensed under CC BY 4.0
Smartphone LiDAR 3D textured mesh: Gran Pez panel. Credit: D. Antón, J. Mayoral-Valsera, M. D. Simón-Vallejo, R. Parrilla-Giráldez, and M. Cortés-Sánchez, J. Archaeol. Sci., 181, 106330 (Sep. 2025); https://doi.org/10.1016/j.jas.2025.106330; Licensed under CC BY 4.0
Oct. 1, 2025
Credit: EPIGAP OSA Photonics
epigaposa
Sept. 24, 2025
Credit: Wavelength Electronics
wavelength_electronics
Sept. 16, 2025

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