Speedy terahertz-based system could detect explosives

Terahertz spectroscopy, which uses the band of electromagnetic radiation between microwaves and infrared light, is a promising security technology because it can extract the spectroscopic "fingerprints" of a wide range of ...

Flying observatory detects atomic oxygen in Martian atmosphere

An instrument onboard the Stratospheric Observatory for Infrared Astronomy (SOFIA) detected atomic oxygen in the atmosphere of Mars for the first time since the last observation 40 years ago. These atoms were found in the ...

Light-powered 3-D printer creates terahertz lens

From visible light to radio waves, most people are familiar with the different sections of the electromagnetic spectrum. But one wavelength is often forgotten, little understood, and, until recently, rarely studied. It's ...

Researchers control properties of light using nanostructures

A theoretical study based on computational simulations conducted by the UPV/EHU's Nano-bio Spectroscopy Research Group in collaboration with the Japanese research centre AIST has shown that the intensity of ultraviolet light ...

Researchers develop 'metasurface' laser for terahertz range

Researchers at the UCLA Henry Samueli School of Engineering and Applied Science have identified a new way to make a semiconductor laser that operates at terahertz frequencies. The breakthrough could lead to development of ...

New device converts DC electric field to terahertz radiation

Terahertz radiation, the no-man's land of the electromagnetic spectrum, has long stymied researchers. Optical technologies can finagle light in the shorter-wavelength visible and infrared range, while electromagnetic techniques ...

Uncovering the real history of art using a graphene scanner

Museum curators, art restorers, archaeologists and the broader public will soon be able to learn much more about paintings and other historic objects, thanks to an EU project which has become a pioneer in non-invasive art ...

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