New material acts as an efficient frequency multiplier

Higher frequencies mean faster data transfer and more powerful processors—the formula that has been driving the IT industry for years. Technically, however, it is anything but easy to keep increasing clock rates and radio ...

Making terahertz waves: Why liquids prefer long optical pulses

Laser-induced ionization in matter—gas, cluster, liquid, and solid—occurs when a laser pulse with sufficient intensity is focused into a target material, creating electrons and ions through nonlinear processes of laser-matter ...

NRL researchers monitor changing Arctic using sound

U.S. Naval Research Laboratory scientists developed Ice-tethered Acoustic Buoys to monitor the acoustic and oceanographic environment in the changing Arctic. The buoys provide critical oceanographic data to improve prediction ...

A trick for taming terahertz transmissions

An Osaka University research team has introduced a new terahertz detector that allows extremely rapid wireless data communication and highly sensitive radar by using a frequency range that has previously been very difficult ...

A balloon-based solar observatory

Southwest Research Institute successfully demonstrated a miniature solar observatory on a high-altitude balloon November 1. The SwRI Solar Instrument Pointing Platform (SSIPP)—a reusable, high-precision solar observatory ...

A laser for penetrating waves

The Landau-level laser is an exciting concept for an unusual radiation source. It could efficiently generate so-called terahertz waves, which can be used to penetrate materials, with possible applications in data transmission. ...

Revealing hidden information in sound waves

By essentially turning down the pitch of sound waves, University of Michigan engineering researchers have devised a way to unlock greater amounts of data from acoustic fields than ever before.

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