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Physicists have measured 'negative time' in the lab

As Homer tells us, Odysseus made an epic journey, against the odds, from Troy to his home in Ithaca. He visited many lands, but mostly dwelt with the nymph Calypso on her island. We can imagine that his wife, Penelope, would ...

Tiny flexible lasers enable force sensing inside living cells

Researchers have developed tiny flexible lasers that can be used to measure forces inside living cells. The new lasers could help illuminate various biological processes, including those involved in early development and ...

Team develops modulator for compact photonic integrated circuits

Researchers at Skoltech have developed an ultra-compact electro-optic modulator based on silicon photonics and plasmonics that enables high-efficiency optical signal control within a small device footprint. The development ...

How electron structure affects light responses in moiré materials

In materials science, if you can understand the "texture" of a material—how its internal patterns form and shift—you can begin to design how it behaves. That's the focus of the work of Zhenglu Li, assistant professor in the ...

More news

Optics & Photonics
Physicists revive 1990s laser concept to propose a next-generation atomic clock
Optics & Photonics
A new route for plasma-based particle accelerators
Optics & Photonics
Laser-plasma 'mirror' unlocks a new path to extreme light intensities
Optics & Photonics
Photonic chip generates milliwatt-level UV light, 100 times brighter than before
General Physics
A laser inspired by black holes: Extreme physics recreated in the lab
Optics & Photonics
Why ultrashort laser pulses could make low-power electron sources far more practical
Optics & Photonics
A hidden property of light could power future nanomachines
Optics & Photonics
Single mathematical model helps solve a decades-old puzzle involving ultrafast lasers
Condensed Matter
Sprinkling nanoparticles on spintronics
Optics & Photonics
Two paths to scalable quantum computing: Optical links between fridges and higher-temperature qubits
Optics & Photonics
I've fired one of America's most powerful lasers—here's what a shot day looks like
Optics & Photonics
Millimeter-scale resolution in fiber-optic sensing: Single-ended technique advances infrastructure monitoring
Optics & Photonics
Generalized optical meta-spanners empower arbitrary light paths for multitasking optical manipulation
Optics & Photonics
Flat optics move toward market with 300-per-second metalens production
Optics & Photonics
Bright quantum light emission achieved at room temperature in 2D semiconductors
Optics & Photonics
Laser-plasma accelerator drives free-electron laser for record 8 hours
Optics & Photonics
Quantum bottleneck breaks wide open as one light beam carries 23 secure channels at the same time
General Physics
New laser method gives insight into radioactive atomic nuclei
Optics & Photonics
Any color you like: Scientists create 'any wavelength' lasers in tiny circuits for light
Optics & Photonics
Why this single-chip LED advance could shrink AR glasses and boost quantum links

Other news

Astronomy
On the ground or in the atmosphere? Swarm satellites help characterize and pinpoint destructive events
Space Exploration
Space junk falls to Earth faster when sunspots peak, reshaping satellite collision forecasts
Archaeology
Medieval jaw reveals Scotland's first known dental bridge made from 20-carat gold
Evolution
Indigenous Andeans have a digestive superpower—and it may be linked to potatoes
Plants & Animals
Carnivorous plants and wasps blur the line between friend and food
Space Exploration
CPR simulator for space use tracks the differences of blood flow in reduced gravity
Astronomy
Astronomers map lifetime of over 100,000 molecular clouds across 66 galaxies
Evolution
A skull full of surprises: Discovering the evolutionary secrets of fish brains
Astronomy
JWST pins down the origins of a planetary odd couple
Molecular & Computational biology
Almost all plant-based meat alternatives contain mycotoxins, new research finds
General Physics
Small talk shapes big trends: Physics predicts how language patterns spread
Earth Sciences
Subglacial CH₄ export from the Greenland Ice Sheet linked to a mid-Holocene warm period
Polymers
Polymer 'bristles' could help repel proteins—and germs—from surfaces in medical settings
Planetary Sciences
Watch as NASA's Curiosity Rover frees its drill from a rock
Cell & Microbiology
Cryo-EM imaging reveals how the body stops bleeding
Astrobiology
Three billion years ago, Earth's life relied on a rare metal
Planetary Sciences
Planet 9 volunteers double known population of brown dwarfs
Earth Sciences
Where was Baltica 616 million years ago? Paleomagnetic data offer revised answer
Earth Sciences
Polar vortex forecasts gain months of lead time with new climate-based method
Biotechnology
Scientists map genetic switches on mosquito reproductive genes, advancing tools to fight disease

Next-generation atomic clock successfully tested at sea

Adelaide University researchers have successfully tested a new type of portable atomic clock at sea for the first time, using technology that could help power the next generation of navigation, communications and scientific ...