Scientists from the Institute of Laser Engineering at Osaka University created a prototype terahertz optical spectroscopy system with a sensing area equivalent to the cross-sectional area of just five human hairs. By measuring ...
Optics & Photonics
Jun 27, 2022
0
124
Compact terahertz functional devices are highly useful for high-speed wireless communication, biochemical sensing and non-destructive inspection. However, controlled terahertz generation, alongside transport and detection ...
Researchers have discovered in two-dimensional conductive systems a new effect that promises improved performance of terahertz detectors.
Optics & Photonics
May 23, 2022
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5035
An intermediate layer consisting of a few atoms is helping to improve the transport of spin currents from one material to another. Until now, this process involves significant losses. A team from Martin Luther University ...
Nanophysics
May 10, 2022
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180
By applying light, University of Arkansas physicists Peng Chen and Laurent Bellaiche have discovered a surprising mechanism for controlling ferroelectric polarization in a deterministic manner.
Condensed Matter
May 10, 2022
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455
In a multidisciplinary project, researchers at the Georgia Institute of Technology and Georgia Tech-Lorraine used terahertz imaging and signal processing techniques to look beneath the corroded surface of a 16th-century lead ...
Archaeology
Apr 25, 2022
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248
Stable packets of light waves—called optical solitons—are emitted in ultrashort-pulse lasers as a chain of light flashes. These solitons often combine into pairs with very short temporal separation. Introducing atomic ...
Optics & Photonics
Apr 22, 2022
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711
Attoclocks, or attosecond clocks, are instruments that can measure time intervals on the attosecond scale by measuring the time it takes for electrons to tunnel out of atoms. The attosecond procedure was first introduced ...
It's not easy to be sure that drugs and supplements with twisted—or chiral—structures are turning in the correct direction. Now, twirling infrared light can probe both the structures of molecular crystals and their twists, ...
Optics & Photonics
Mar 21, 2022
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46
Raman spectroscopy offers a powerful approach to chemical measurement. By directly probing molecular vibrations, it obtains chemical specificity without the need for chemical labels. Thanks to these virtues, it has become ...
Optics & Photonics
Mar 1, 2022
0
28
