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Optics & Photonics Mar 15, 2024

Chiral transmission by an open evolution trajectory in a non-Hermitian system

In non-Hermitian systems, two or more eigenvalues and eigenstates of a resonant system coalesce at Exceptional points (EPs). Dynamic encircling of EPs has received significant interest in recent years, as it leads to highly ...

Optics & Photonics Mar 15, 2024

Ultra-flat optics for broadband thermal imaging

Long-wavelength infrared (LWIR) imaging holds critical significance across many applications, from consumer electronics to defense and national security. It finds applications in night vision, remote sensing, and long-range ...

Nanophysics Mar 12, 2024

Ultrablack thin-film coating could make next-gen telescopes even better

Sometimes, seeing clearly requires complete black. For astronomy and precision optics, coating devices in black paint can cut down on stray light, enhancing images and boosting performance. For the most advanced telescopes ...

Astronomy Mar 12, 2024

Detailed pictures show galaxy growth in the early universe was much faster than first thought

Astronomers are currently enjoying a fruitful period of discovery, investigating the many mysteries of the early universe. The successful launch of the James Webb Space Telescope (JWST), a successor to NASA's Hubble Space ...

Nanomaterials Mar 11, 2024

Researchers devise new ways to engineer carbon-based semiconductors for electronics of the future

It might look like a roll of chicken wire, but this tiny cylinder of carbon atoms—too small to see with the naked eye—could one day be used for making electronic devices ranging from night vision goggles and motion detectors ...

Space Exploration Mar 8, 2024

NASA unveils design for message heading to Jupiter's moon Europa

When it launches in October, the agency's Europa Clipper spacecraft will carry a richly layered dispatch that includes more than 2.6 million names submitted by the public.

Space Exploration Mar 6, 2024

More planets than stars: Kepler's legacy

The Kepler mission enabled the discovery of thousands of exoplanets, revealing a deep truth about our place in the cosmos: There are more planets than stars in the Milky Way galaxy. The road to this fundamental change in ...

Nanophysics Mar 6, 2024

Nanodevices can produce energy from evaporating tap or seawater

Evaporation is a natural process so ubiquitous that most of us take it for granted. In fact, roughly half of the solar energy that reaches the Earth drives evaporative processes. Since 2017, researchers have been working ...

Polymers Mar 6, 2024

Scientists reveal molecular mysteries to control silica scaling in water treatment

Collaborative research that combined experiments at Yale University and molecular dynamics simulations at the Department of Energy's Oak Ridge National Laboratory provides new insights into solving a major technical obstacle ...

Optics & Photonics Mar 6, 2024

'Ruler for light' could enable detailed measurement in personal devices

Stanford researchers have unveiled a new type of frequency comb, a high-precision measurement device, that is innovatively small, ultra-energy efficient, and exceptionally accurate. With continued development, this breakthrough ...

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