Exciton resonance tuning of an atomically thin lens

Since the development of diffractive optical elements in the 1970s, researchers have increasingly uncovered sophisticated fundamental principles of optics to replace the existing bulky optical elements with thin and lightweight ...

Nanocomposite material provides photonic switching

(PhysOrg.com) -- Integrated photonic devices represent the wave of future technology. These devices will be extremely small, making use of photons on the nanoscale, and (hopefully) be very efficient in terms of power use. ...

Tacit hand device steers blind to safety (w/ video)

(PhysOrg.com) -- A hand device called the Tacit can help the blind and visually impaired move around safely in complex environments. Wrist-mounted, the device uses ultrasonic sensors mounted above the knuckles that can pick ...

'Smart saddle' could help equestrians hit their stride

Skilled equestrians make advanced riding maneuvers, like jumps, spins and piaffes, look effortless. But good riding requires balance and subtle cues to the horse, many of which are given through the rider's posture, seat ...

When people 'click' they respond faster to each other

When two people are on the same page in a conversation, sometimes their minds just "click." A Dartmouth study demonstrates that clicking isn't just a figure of speech but is predicted by "response times" in a conversation ...

Carbon nanotube-based sensor can detect SARS-CoV-2 proteins

Using specialized carbon nanotubes, MIT engineers have designed a novel sensor that can detect SARS-CoV-2 without any antibodies, giving a result within minutes. Their new sensor is based on technology that can quickly generate ...

Office air quality may affect employees' cognition, productivity

The air quality within an office can have significant impacts on employees' cognitive function, including response times and ability to focus, and it may also affect their productivity, according to new research led by Harvard ...

New optical hydrogen sensors eliminate risk of sparking

Hydrogen as a clean, renewable alternative to fossil fuels is part of a sustainable-energy future, and very much already here. However, lingering concerns about flammability have limited widespread use of hydrogen as a power ...

page 1 from 7