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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, ...

Hybrid fiber pump combiner could advance mid-IR laser systems

In the last two decades, the rapid advancement in applications such as environmental monitoring, medical diagnostics, and global positioning has intensified the focus on developing novel mid-IR light sources. Fiber-based ...

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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
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
Optics & Photonics
New upgrade will supercharge atomic vision of the world's most powerful X-ray laser

Other news

General Physics
Investigating the impact of ultralight dark matter on gravitational wave signals
Plants & Animals
Scientists find southern killer whales of the Pacific have access to enough food, deepening mystery of their struggles
Political science
Megastudy tests crowdsourced ideas for reducing political polarization
Other
Saturday Citations: Brown dwarf actually brown dwarfs; the adaptability of ice-age humans; archaeologists excited
Plants & Animals
Worms and snails handle the pressure 2,500m below the Pacific surface
Earth Sciences
Could injecting diamond dust into the atmosphere help cool the planet?
Astronomy
Physicists show that neutron stars may be shrouded in clouds of axions
Astronomy
First results from the Axion Dark-Matter Birefringent Cavity experiment establish a new technique for axion search
Environment
Global study reveals people, including those most affected by climate change, do not understand climate justice
Plants & Animals
Bumblebee queens choose to hibernate in pesticide-contaminated soil, scientists discover
Nanomaterials
New fabrication strategy enhances graphene aerogel sensitivity and durability for human-machine interfaces
Biochemistry
Team develops promising new form of antibiotic that makes bacterial cells self-destruct
Nanophysics
Controlling sound waves with Klein tunneling improves acoustic signal filtration
Biochemistry
Lignin molecular property discovery could help turn trees into affordable, greener industrial chemicals
Cell & Microbiology
Cellular senescence research identifies key enzyme to promote healthy aging
Plants & Animals
American lobster population and habitat preferences shifting, study finds
Cell & Microbiology
Scientists show how sperm and egg come together like a key in a lock
Earth Sciences
Scientists identify potential deep-ocean greenhouse gas storage solution
Analytical Chemistry
New strategy unlocks magnetic switching with hydrogen bonding at molecular level
Plants & Animals
Butterfly brains reveal the tweaks required for cognitive innovation

Laser diode emits deep UV light

Nagoya University scientists, in cooperation with Asahi Kasei Corporation, have designed a laser diode that emits deep-ultraviolet light, and have published a paper in the journal Applied Physics Express.

Deep learning enables real-time imaging around corners

Researchers have harnessed the power of a type of artificial intelligence known as deep learning to create a new laser-based system that can image around corners in real time. With further development, the system might let ...

Diabolical points in coupled active cavities with quantum emitters

Diabolical points (DPs) introduce ways to study topological phase and peculiar energy dispersion. Scientists in China and partners from the United Kingdom demonstrated DPs in strongly coupled active microdisks. A new macroscopical ...

Colloidal quantum dot laser diodes are just around the corner

Los Alamos scientists have incorporated meticulously engineered colloidal quantum dots into a new type of light emitting diodes (LEDs) containing an integrated optical resonator, which allows them to function as lasers. These ...

Slow light to speed up LiDAR sensors development

Quicker is not always better, especially when it comes to a 3-D sensor in advanced technology. With applications in autonomous vehicles, robots and drones, security systems and more, researchers are striving for a 3-D sensor ...

Solving complex problems at the speed of light

Many of the most challenging optimization problems encountered in various disciplines of science and engineering, from biology and drug discovery to routing and scheduling can be reduced to NP-complete problems. Intuitively ...