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New method to generate photon pairs efficiently on a chip

Thin-film lithium niobate is an emerging nonlinear integrated photonics platform ideally suited for quantum applications. Through spontaneous parametric down-conversion (SPDC), it can generate correlated photon pairs for ...

Silicon metasurfaces unlock broad-spectrum infrared imaging

Infrared imaging technology is crucial for advancing our understanding of the world, from exploring biological specimens to inspecting complex materials and detecting hidden patterns in physical systems.

Atomic sensors unveil hidden dynamics of molecular polarization

Magnetic resonance imaging (MRI) has long been a cornerstone of modern medicine, providing highly detailed images of internal organs and tissues. MRI machines, those large, tube-shaped magnets commonly found in hospitals, ...

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Optics & Photonics
Quantum physicists tap into entanglement to improve the precision of optical atomic clocks
Optics & Photonics
Quantum register reaches 1,200 neutral atoms in continuous operation
Optics & Photonics
New photonics approach enhances quantum computation efficiency
Optics & Photonics
Smart new laser technology can monitor greenhouse gases faster, more sensitively
Optics & Photonics
Hybrid fiber pump combiner could advance mid-IR laser systems
Condensed Matter
Highly sensitive quantum sensors for medicine: First successful demonstration of a dual-media NV diamond laser system
Optics & Photonics
AI predicts optical properties to speed up the discovery of energy and quantum materials
Optics & Photonics
Logic with light: Introducing diffraction casting, optical-based parallel computing
Optics & Photonics
Engineers create a chip-based tractor beam for biological particles
Optics & Photonics
Quantum research paves the way toward efficient, ultra-high-density optical memory storage
Optics & Photonics
As the Advanced Photon Source upgrade nears completion, scientists anticipate experimental possibilities
Optics & Photonics
Researchers observe hidden deformations in complex light fields
Optics & Photonics
Researchers harness liquid crystal structures to design simple, yet versatile bifocal lenses
Optics & Photonics
Scientists demonstrate advanced low-coherence BOCDR system using periodic pseudo-random modulation
Optics & Photonics
Headband-like device uses speckle contrast optical spectroscopy to predict stroke risk
Optics & Photonics
A new apparatus for analyzing partial coherence in integrated photonic networks
Optics & Photonics
Nonlinear optical metasurface achieves electrically tunable third-harmonic generation
Optics & Photonics
Research team succeeds in ultra-fast switching of tiny light sources
Condensed Matter
Discovering quasiparticles ejected from color centers in diamond crystals
Optics & Photonics
Inverse-design method enhances performance and reliability of on-chip spectrometers

Other news

Astronomy
Betelgeuse Betelgeuse? Bright star Betelgeuse likely has a 'Betelbuddy' stellar companion
Environment
Understanding the relationship between food waste, climate change and an aging population
Environment
Microbes in environment drove methane emissions more than fossil fuels between 2020 and 2022, analysis finds
Plants & Animals
How plants compete for light: Researchers discover new mechanism in shade avoidance
Astrobiology
Giant meteorite impact 3.26 billion years ago may have aided early life
Cell & Microbiology
Unexpected beauty and major antimicrobial power boost as phages form into surprising flower shapes
Earth Sciences
Modeling experiments show weather-changing El Niño oscillation is at least 250 million years old
Social Sciences
Docudrama can lead to more empathy toward people who are stigmatized in society, study finds
Evolution
Evolution in action: How ethnic Tibetan women thrive in thin oxygen at high altitudes
Environment
Satellite-derived data on artificial light at night indicate rapidly increasing industrial activities in the Arctic
Analytical Chemistry
Artificial 'nose' can sniff out damaged fruit and spoiled meat
Nanomaterials
Amorphous nanosheets created using hard-to-synthesize metal oxides and oxyhydroxides
Ecology
Accurately weighing costs and benefits of different methods for controlling invasive species
Archaeology
Rare fossils of extinct elephant document the earliest known instance of butchery in India
General Physics
Walk or run in the rain? A physics-based approached to staying dry (or at least drier)
Archaeology
Archaeologist reveals factors affecting ocher application in ancient burials at Khok Phanom Di
Earth Sciences
Climate change intensified 2022 drought in Central and Southern Europe, study finds
Nanophysics
Viscous electronics: Fluid-like electrons are unlocking new tech possibilities
Social Sciences
Experimental approach analyzes how our relationships affect the adoption of innovations
Paleontology & Fossils
Smallest dinosaur egg ever found confirmed in China

A remote control for everything small

Atoms, molecules or even living cells can be manipulated with light beams. At TU Wien a method was developed to revolutionize such "optical tweezers".

Quantum light improves sensitivity of biological measurements

In a new study, researchers showed that quantum light can be used to track enzyme reactions in real time. The work brings together quantum physics and biology in an important step toward the development of quantum sensors ...

Foam offers way to manipulate light

There is more to foam than meets the eye. Literally. A study by Princeton scientists has shown that a type of foam long studied by scientists is able to block particular wavelengths of light, a coveted property for next-generation ...

Researchers create better light-trapping devices

Anyone who's ever played the drums, tuned a guitar, or even made a wine glass "sing" by circling a finger along its edge knows about resonance. Acoustic resonators, like the cavity of a drum or a half-full wine glass, naturally ...

Hot electrons harvested without tricks

Semiconductors convert energy from photons (light) into an electron current. However, some photons carry too much energy for the material to absorb. These photons produce "hot electrons," and the excess energy of these electrons ...