Last update:

A layered approach sharpens brain signals in optical imaging

Near-infrared spectroscopy, or fNIRS, offers a way to monitor brain activity without surgery or radiation by tracking changes in blood flow and oxygenation. Light sources placed on the scalp send near-infrared light into ...

A tiny detector for microwave photons could advance quantum tech

Detecting a single particle of light is hard; detecting a single microwave photon is even harder. Microwave photons, the tiny packets of electromagnetic radiation used in current technologies like Wi-Fi and radar, carry far ...

Compact flat-lens system can generate nondiffracting bottle beams

Most laser sources produce Gaussian beams that diverge as they propagate. This natural spreading limits their effectiveness in applications that require light to remain concentrated over long distances. To overcome this challenge, ...

Ultrafast quantum light pulses measured for the first time

Researchers at the Technion—Israel Institute of Technology have, for the first time, measured the temporal duration of individual pulses of an extraordinary form of quantum light known as bright squeezed vacuum (BSV). Their ...

Chiral metasurfaces guide twisted light into free space

Light can carry angular momentum in two distinct ways. One comes from polarization, which describes how the electric field rotates. The other comes from the shape of the wavefront itself, which can twist like a corkscrew ...

Quantum researchers engineer extremely precise phonon lasers

When lasers were invented in the 1960s, they opened new avenues for scientific discovery and everyday applications, from scanners at the grocery store to corrective eye surgery. Conventional lasers control photons—individual ...

More news

Optics & Photonics
Physicists create optical phenomenon inspired by the quantum Hall and spin Hall effects
Optics & Photonics
Physicists create laser tornado in miniature structures using synthetic magnetic field
Optics & Photonics
Novel measurement confirms a 50-year-old prediction: Dark points are faster than light
Optics & Photonics
Experimental evidence shows how photons spread across multiple paths in an interferometer
Optics & Photonics
Tiny LED design could power next-generation technology
Optics & Photonics
First microlasers capable of detecting individual molecules and ions could one day aid diagnosis
Optics & Photonics
Topological solitons power a chip-scale frequency comb source
Optics & Photonics
DNA origami precisely positions single-photon emitters for quantum technologies
Optics & Photonics
Superconducting chip generates tunable terahertz waves for compact imaging
Condensed Matter
A Hall 'rectenna' can detect signals over a 100 GHz frequency range
Optics & Photonics
A new entanglement-enhanced quantum sensing scheme
Optics & Photonics
Compact terahertz imaging system brings real-time, non-invasive clinical diagnostics closer
Optics & Photonics
'Mini earthquakes' turn tiny chips into radio signal powerhouses
Optics & Photonics
A multi-lane highway for light: Topology helps build more robust photonic networks
Condensed Matter
Terahertz spin waves can be converted into computer signals, study shows
Optics & Photonics
AI rebuilds molecules from exploding fragments
Optics & Photonics
A world‑first quantum battery charges faster when it gets bigger—but it's tiny and only lasts nanoseconds
Optics & Photonics
Quantum-inspired laser system delivers distance measurements with sub-millimeter accuracy
Optics & Photonics
Proof-of-concept quantum battery shows faster charging as it gets larger
Optics & Photonics
Experiment observes quantum radiation reaction as electrons hit an ultra-intense laser

Other news

Evolution
Dragonflies share humans' red-light sensing trick, detecting wavelengths near 720 nm
Archaeology
Ancient Māori remains point to largely plant-based diets before colonization
Soft Matter
New AI method flags fluid flow tipping points before simulations break down
Earth Sciences
Why treelines don't simply rise with the climate
Astronomy
What if dark matter came in two states?
Molecular & Computational biology
One DNA letter can trigger complete sex reversal
Space Exploration
Houston, we have a problem ... with the toilet
Ecology
Soundscapes from nearby forests are more uplifting than those from faraway places, research suggests
Plants & Animals
The lengths male octopuses go to protect the arm they need to mate
General Physics
Physicists zero in on the mass of the fundamental W boson particle
Archaeology
Unique double baptistery and mysterious marble block uncovered at Byzantine cathedral in Israel
Cell & Microbiology
AI uncovers hidden immune defenses inside bacteria
Plants & Animals
Ecuador study finds tropical rainforest biodiversity rebounds over 90% in 30 years
Earth Sciences
AMOC collapse could turn Southern Ocean into carbon source, adding 0.2°C to global warming
General Physics
AI trained like a Rubik's Cube solver simplifies particle physics equations
Archaeology
DNA evidence reveals a Stone Age population collapse in France
Cell & Microbiology
A 'stemness checkpoint' helps control stem cell identity
Environment
Satellites capture the volatile human–luminescence relationship
Earth Sciences
Uncharted island will soon appear on nautical charts
Earth Sciences
Summer is getting longer, and it's happening faster than we thought

Shaky cameras can make for sharper shots, new research shows

It doesn't take an expert photographer to know that the steadier the camera, the sharper the shot. But that conventional wisdom isn't always true, according to new research led by Brown University engineers.

A light-programmable, dynamic ultrasound wavefront

The notion of a phased array was initially articulated by Nobel Prize recipient K. F. Braun. Phased arrays have subsequently evolved into a formidable mechanism for wave manipulation. This assertion holds particularly true ...