Researchers control quantum states with spin-polarized currents

Researchers at ETH Zurich have achieved a significant breakthrough in quantum physics by demonstrating that quantum states of single electron spins can be controlled using spin-polarized electron currents. This pioneering method holds potential for future applications in electronic circuit elements, potentially revolutionizing data storage and processing. The Spin of Electrons Electrons possess an intrinsic angular … Read more

Researchers create first topological frequency comb on a silicon nitride chip

Scientists in the quest for compact and robust sources of multicolored laser light have achieved a groundbreaking milestone by generating the first topological frequency comb. This innovative result, reliant on a small silicon nitride chip patterned with hundreds of microscopic rings, has been detailed in the journal Science. Traditionally, light from an ordinary laser emits … Read more

New nanomedicine therapy combines drug delivery and enhanced immunity for lung cancer

Researchers at Brigham and Women’s Hospital have developed a new nanomedicine therapy that delivers anticancer drugs to lung cancer cells and enhances the immune system’s ability to fight cancer. The team showed promising results for the new therapy in cancer cells in the lab and in mouse lung tumor models, with potential applications for improving … Read more

Scientists create optical Kármán vortex street

In a study published in Nature Communications, collaborating physicists from Singapore and the UK have reported an optical analog of the Kármán vortex street (KVS). This optical KVS pulse reveals fascinating parallels between fluid transport and energy flow of structured light. Yijie Shen, study lead author from Nanyang Technological University, says, “We introduce a type of light pulse … Read more

New theory quantifies information carried by waves in interaction with environment

Waves pick up information from their environment through which they propagate. A theory of information carried by waves has now been developed at TU Wien—with astonishing results that can be utilized for technical applications. Ultrasound is used to analyze the body, radar systems to study airspace or seismic waves to study the interior of our … Read more

Revolutionary carbon fiber electrocatalysts pave the way for affordable green hydrogen production

A groundbreaking technology has been developed to address the limitations of current catalyst electrodes, facilitating the large-scale production of green hydrogen at a relatively low cost. This significant advancement was published in the Journal of the American Chemical Society. The innovative project was led by Professor Han Gi Chae from the Department of Materials Science … Read more

3D-printed photonic lantern enables compact spatial mode (De-)multiplexing

Optical waves propagating through air or multi-mode fiber can be patterned or decomposed using orthogonal spatial modes, with far-ranging applications in imaging, communication, and directed energy. Yet the systems that perform these wavefront manipulations are cumbersome and large, restricting their utilization to high-end applications. The development of a free-standing microscale photonic lantern spatial mode (de-)multiplexer … Read more

Researchers develop high-speed wavemeter with multimode and multicore fibers

Accurate high-speed measurements of wavelength are fundamental to optical research and industrial applications, such as environmental monitoring, biomedical analysis, and material characterization. Recent studies have shown that a disordered scattering medium such as a multimode fiber can generate a wavelength-dependent speckle pattern, which can provide a high spectral resolution and broad operational bandwidth in a … Read more

Researchers develop advanced metaholograms with enhanced image projection capabilities

Researchers have developed a groundbreaking type of hologram known as ‘metaholograms,’ which can project multiple high-fidelity images without any crosstalk. This innovation marks a significant advancement in holographic technology and holds promise for future applications in virtual and augmented reality (VR/AR) displays, information storage, and image encryption. The findings have been published in the journal … Read more

Innovative dual-mode films offer enhanced security against counterfeiting

As concerns about data theft and counterfeiting grow, so does the need for sophisticated security technologies to verify the authenticity of important documents like currency and passports. Traditional methods, such as hologram seals, are continually challenged by evolving criminal techniques. In response, researchers are developing advanced solutions to stay ahead of these threats. A team … Read more

Low-level light therapy enhances brain healing in traumatic brain injury patients

Low-level light therapy (LLLT) appears to promote healing in the brains of individuals with significant brain injuries, according to a study published in the journal Radiology. For years, researchers have explored the wound-healing properties of light of various wavelengths. In a recent study, scientists at Massachusetts General Hospital (MGH) applied LLLT to 38 patients who … Read more

Groundbreaking terahertz source pushes limits to ionize matter

Terahertz waves, typically known as non-ionizing radiation, have now been pushed to new limits where they can behave as ionizing radiation under specific conditions. A groundbreaking advancement by a collaborative team of scientists from Korea and the U.S. has led to the creation of the most intense terahertz pulses ever recorded. These pulses are powerful … Read more

Dynamic disorder unravels the mystery of slowdown in supercooled water

A scientist at the Institute for Molecular Science has published a study that provides insight into the puzzling phenomenon of dynamic slowdown in supercooled water, an essential step toward understanding the glass transition in liquids. The study, “Unraveling the dynamic slowdown in supercooled water: The role of dynamic disorder in jump motions,” explores the microscopic … Read more

Novel miniaturized photodetector revolutionizes high-dimensional light detection

A groundbreaking study published in Nature, led by Professor Wei Li from the Changchun Institute of Optics, Fine Mechanics and Physics (CIOMP) of the Chinese Academy of Sciences, has introduced an innovative miniaturized photodetector. This device uniquely characterizes arbitrary polarization states across a broad spectrum with a single measurement, setting a new standard in photodetection … Read more

Direct observation of polar bloch points in ferroelectric films

A Bloch point is a singular point in a magnetic or electric field where the vectors are oriented in nearly all directions. This unique feature serves as a critical link between classical and quantum magnetism. In magnetics, Bloch points have remained elusive and have not been directly observed. Similarly, in the realm of ferroelectrics, the … Read more

Scientists design blue TADF material for high-performance nondoped and doped OLEDs

Organic light-emitting diodes (OLEDs) have become a leading display technology. The luminescent material is a core component of OLEDs. Thermally activated delayed fluorescence (TADF) materials have emerged as promising emitters for achieving high-efficiency OLEDs. Blue TADF-OLEDs confront more pronounced efficiency roll-off and material degradation issues compared to their green and red counterparts, owing to the … Read more

PhaseLift-based photoemission orbital tomography simplifies 3D MO visualization in materials

Discoveries and progress in materials science often lay the foundation for technological breakthroughs that reshape many industrial and commercial fields, including medicine, consumer electronics, and energy generation. The development of experimental techniques is crucial in exploring new materials, paving the way for groundbreaking discoveries. These techniques allow scientists to delve into a material’s chemical and … Read more

First-ever measurement of promethium’s chemical bond fills gap in rare earth knowledge

Scientists have recently uncovered new properties of promethium, a rare earth element first discovered 80 years ago at Clinton Laboratories, now known as the Department of Energy’s Oak Ridge National Laboratory (ORNL). This breakthrough opens a new pathway for exploring elements that are critical in modern technology, including applications in medicine and space travel. Promethium, … Read more

Review examines non-classical crystallization pathways in soft and organic materials

Soft and organic crystals are a diverse group of materials with connections to biological, environmental, and industrial processes with a wide range of applications, from pharmaceuticals to flexible electronics. Understanding the details of their crystallization pathways is essential to developing the ability to controllably synthesize new materials and structures with targeted properties. A new review … Read more

Researchers develop compact device for characterizing quantum photons

An increasing number of emerging quantum applications operate using optical technologies. Essentially, photons carry information at the speed of light and over long distances, making them good candidates for fast and secure communications and quantum computing. Many of these applications require photons that are identical (indistinguishable). When the photons are not identical, it can lead … Read more