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Laser method promising for detecting trace chemicals in air

Researchers have developed a new laser-based method that can detect electric charges and chemicals of interest with unprecedented sensitivity. The new approach could one day offer a way to scan large areas for radioactive ...

Researchers improve semiconductor laser on silicon

Electrical engineering researchers have boosted the operating temperature of a promising new semiconductor laser on silicon substrate, moving it one step closer to possible commercial application.

A new force for optical tweezers

When studying biological cells using optical tweezers, one main issue is the damage caused to the cell by the tool. Giovanni Volpe, University of Gothenburg, has discovered a new type of force that will greatly reduce the ...

Ring resonators corner light

Researchers at the Joint Quantum Institute (JQI) have created the first silicon chip that can reliably constrain light to its four corners. The effect, which arises from interfering optical pathways, isn't altered by small ...

Building a better electron gun

The successful test of the LCLS-II electron gun (see related article) marks the culmination of an R&D effort spanning more than a decade at the Department of Energy's Lawrence Berkeley National Laboratory (Berkeley Lab).

Laser trick produces high-energy terahertz pulses

A team of scientists from DESY and the University of Hamburg has achieved an important milestone in the quest for a new type of compact particle accelerator. Using ultra-powerful pulses of laser light, they were able to produce ...

Hybrid nanostructure steps up light-harvesting efficiency

To absorb incoming sunlight, plants and certain kinds of bacteria rely on a light-harvesting protein complex containing molecules called chromophores. This complex funnels solar energy to the photosynthetic reaction center, ...

Hybrid device may help doctors treat strokes more quickly

Stroke, one of the leading causes of death worldwide, is normally caused by poor blood flow to the brain, or cerebral ischemia. This condition must be diagnosed within the first few hours of the stroke for treatment to be ...

Direct atom-resolved imaging of magnetic materials

In conventional electron microscopes, performing atomic-resolution observations of magnetic materials is particularly difficult because high magnetic fields are inevitably exerted on samples inside the magnetic objective ...

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Fiber-optic probe can see molecular bonds
Optics & Photonics
Multicolored light twists in new knotted ways
Optics & Photonics
NIST infrared frequency comb measures biological signatures
General Physics
Probing semiconductor crystals with a sphere of light
Optics & Photonics
Polarization-encryption based data storage in 3-D Janus plasmonic helical nanoapertures
General Physics
Chip design dramatically reduces energy needed to compute with light
General Physics
Dowsing for electric fields in liquid crystals
Optics & Photonics
Sensitive new laser technique detects volatile organic compounds
Optics & Photonics
SLAC fires up electron gun for LCLS-II X-ray laser upgrade
Optics & Photonics
On-demand, photonic entanglement synthesizer
Optics & Photonics
Experts develop nanolasers on silicon
Optics & Photonics
Radiation damage lowers melting point of potential fusion reactor material
Optics & Photonics
Less can be more: Semiconductor nanowires for flexible photovoltaics
General Physics
Colliding lasers double the energy of proton beams
General Physics
New discovery about terahertz radiation benefits biomedicine
General Physics
The first observation of the nuclear Barnett effect
Optics & Photonics
Why you should care about better fiber optics
Optics & Photonics
New approach captures detailed mid-infrared images for medical diagnostics
Optics & Photonics
Scientists proposed a novel configuration of nanoscopes
Optics & Photonics
Nanoscopic protein motion on a live cell membrane

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General Physics
Applying the Goldilocks principle to DNA structure
Cell & Microbiology
Tapping into the way cells communicate
Analytical Chemistry
Remote-controlled drug delivery implant size of grape may help chronic disease management
Space Exploration
Russian, North American astronauts return to earth
Astronomy
Model suggests how early dark energy could resolve the Hubble tension
Condensed Matter
Researchers explain visible light from 2-D lead halide perovskites
Earth Sciences
Tropical soil disturbance could be hidden source of CO2
Nanophysics
Nanogenerator's 2500% stretchability sets new record
Biochemistry
Engineering enzymes to turn plant waste into sustainable products
Earth Sciences
Researchers provide new evidence on the reliability of climate modeling
Environment
Trees' water-use strategies can intensify droughts
Plants & Animals
Ant farmers boost plant nutrition
Evolution
Monarch butterflies bred in captivity may lose the ability to migrate, study finds
Space Exploration
Curiosity Rover finds high levels of methane on Mars
Cell & Microbiology
Widely available antibiotics could be used in the treatment of 'superbug' MRSA
Environment
Ancient intervention could boost dwindling water reserves in coastal Peru
Earth Sciences
Clouds dominate uncertainties in predicting future Greenland melt
Condensed Matter
Researchers unveil how soft materials react to deformation at molecular level
Astronomy
Subaru Telescope identifies the outermost edge of the Milky Way system
Social Sciences
Mathematics ties media coverage of gun control to upticks in gun purchases