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Optics & Photonics news
Ultrafast optical technique reveals how electrical double layers form in liquids
Charged surfaces in contact with liquids—such as biological cell walls or battery electrodes—attract oppositely charged ions from the liquid. This creates two distinct charged regions: the surface itself and a counter-charged ...
Optics & Photonics
Apr 25, 2025
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New quantum optics theory proposes that classical interference arises from bright and dark states of light
Classical physics theories suggest that when two or more electromagnetic waves interfere destructively (i.e., with their electric fields canceling each other out), they cannot interact with matter. In contrast, quantum mechanics ...
Portable Raman analyzer detects hydrogen leaks from a distance
Researchers have developed a new portable Raman analyzer that can accurately measure very low concentrations of hydrogen gas in ambient air. The instrument could be useful for detecting hydrogen leaks, which pose serious ...
Optics & Photonics
Apr 24, 2025
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Scientists develop low-cost liquid lenses
Filipino scientists have discovered a simple, affordable way to make dynamically adjustable water-based lenses that have a wide variety of potential future applications—from classrooms and research labs to cameras and even ...
Optics & Photonics
Apr 24, 2025
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Nanophotonic platform boosts efficiency of nonlinear-optical quantum teleportation
Researchers have long recognized that quantum communication systems would transmit quantum information more faithfully and be impervious to certain forms of error if nonlinear optical processes were used. However, past efforts ...
Optics & Photonics
Apr 24, 2025
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Quantum messages travel 254 km using existing infrastructure for the first time
Quantum messages sent across a 254-km telecom network in Germany represent the first known report of coherent quantum communications using existing commercial telecommunication infrastructure.
Optics & Photonics
Apr 23, 2025
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It's about (space-)time: Scientists explore new dimension for light
By breaking a decades-old paradigm and rethinking the role that the dimension of time plays in physics, researchers from the University of Rostock and the University of Birmingham have discovered novel flashes of light that ...
General Physics
Apr 23, 2025
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Light fields with extraordinary structure: Plasmonic skyrmion bags
A research group at the University of Stuttgart has manipulated light through its interaction with a metal surface so that it exhibits entirely new properties. The researchers have published their findings in Nature Physics.
Optics & Photonics
Apr 22, 2025
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Researchers develop compact superradiant Smith-Purcell device with ultra-narrow linewidth
Superradiant Smith-Purcell radiation (S-SPR) is a kind of free electron radiation with a train of free electron bunches passing over a periodic grating. In theory, the ultra-narrow spectral linewidth of S-SPR could be realized, ...
Optics & Photonics
Apr 21, 2025
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New mechanism uses photonic crystal for concentrating light on a chip
Concentrating light in a volume as small as the wavelength itself is a challenge that is crucial for numerous applications. Researchers from AMOLF, TU Delft, and Cornell University in the U.S. have demonstrated a new way ...
Optics & Photonics
Apr 18, 2025
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A pioneering spectrometer for high photon energy X-rays
Researchers at the European XFEL have developed a new device for X-ray measurements at high photon energies—a so-called Laue spectrometer. It enables X-ray light with photon energies of more than 15 kiloelectronvolts to ...
Optics & Photonics
Apr 17, 2025
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Quantum surprise: Matter mediates ultrastrong coupling between light particles
A team of Rice University researchers has developed a new way to control light interactions using a specially engineered structure called a 3D photonic-crystal cavity. Their work, published in the journal Nature Communications, ...
Optics & Photonics
Apr 17, 2025
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Curved neutron beams could deliver benefits straight to industry
In a physics first, a team including scientists from the National Institute of Standards and Technology (NIST) has created a way to make beams of neutrons travel in curves. These Airy beams (named for English scientist George ...
General Physics
Apr 17, 2025
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Tying light from lasers into stable 'optical knots'
Knots are generally understood to form due to twists and turns of long, flexible materials that keep shoes on your feet or frustrate your attempts at hanging holiday decorations. A beam of light doesn't sound like a material ...
Optics & Photonics
Apr 17, 2025
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Multivalley semiconductor enables optical switching in germanium for high-speed computing and communications
Opaque materials can transmit light when excited by a high-intensity laser beam. This process, known as optical bleaching, induces a nonlinear effect that temporarily alters the properties of a material. Remarkably, when ...
Condensed Matter
Apr 16, 2025
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Physicists develop compact, mid-infrared pulse generator on single chip
Physicists at Harvard John A. Paulson School of Engineering and Applied Sciences (SEAS) have created a compact laser that emits extremely bright, short pulses of light in a useful but difficult-to-achieve wavelength range, ...
Optics & Photonics
Apr 16, 2025
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Optical device mimics both black and white holes
In the realm of general relativity, black holes are well-known for their ability to trap light and matter by bending spacetime, creating a point of no return. While black holes have fascinated scientists and the public alike, ...
General Physics
Apr 15, 2025
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Enhanced CsPbBr₃ X-ray detectors achieve record-low detection limits
In a major step forward for radiation detection technology, a research team led by Prof. Meng Gang from the Hefei Institutes of Physical Science of the Chinese Academy of Sciences has significantly enhanced the performance ...
Condensed Matter
Apr 15, 2025
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Light that spirals like a nautilus shell
Beams of light that can be guided into corkscrew-like shapes called optical vortices are used today in a range of applications. Pushing the limits of structured light, Harvard applied physicists in the John A. Paulson School ...
Optics & Photonics
Apr 11, 2025
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Scientists discover simpler is better when it comes to terahertz time-domain spectroscopy
A simple tweak to the usual setup is all that is needed to enhance a spectroscopy technique that uses waves in the terahertz region to probe samples, RIKEN physicists have discovered. The findings are published in the journal ...
Optics & Photonics
Apr 11, 2025
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More news
Researchers discover a new type of quantum entanglement
Amplifier with 10-fold bandwidth opens up for super lasers
Error correction method reduces photon requirements for quantum computing
A new wave in ultrafast magnetic control
Enhancing light control with complex frequency excitations
Efficient light control: Meta-optics replace conventional lenses
Quantum imaging method developed for enhanced image clarity
Liquid-crystal platform overcomes optical losses in photonic circuits
Terahertz imaging reveals new views of internal cochlea structure
Other news
The first experimental observation of Dirac exceptional points
Structure of lipid-transfer tunnel protein in C. elegans revealed
New review urges rigorous testing for single-atom catalysts in industry
Is our universe the ultimate computer?
Pigs can regrow their adult teeth. What if humans could, too?
Scientists develop novel strategy to enhance water oxidation catalysis
An earth-abundant mineral for sustainable spintronics
Surface reconstruction strategy can enable affordable hydrogen fuel production
Novel protocol enables photon entanglement without quantum measurement
Researchers unveil unidirectional light focusing using diffractive optics
Animal energy usage made visible through video
Chimpanzee stem cells offer new insights into early embryonic development
