High-order synthetic dimensions in waveguide photonic lattices
160,468 articles from EurekAlert
Highest peak power and excellent stability
In the recent work, scientists from Max-Born-Institute have shown that a multitude of high-dimensional synthetic lattices naturally emerge in (abstract) photon-number space when a multiport photonic lattice is excited by N indistinguishable photons.
How do bacteria build up natural products?
Optical amplifiers based on chirped pulse amplification (CPA) are used to generate high intensity pulses. In the CPA scheme, a weak temporally stretched seed pulse is amplified to high energy in a laser amplifier and finally re-compressed resulting in an ultrashort pulse of very high intensity. Applying this concept a new system was developed at MBI delivering few-ps pulses at 2 μm wavelength...
How does Earth sustain its magnetic field?
The active agents of many drugs are natural products, so called because often only microorganisms are able to produce the complex structures. Similar to the production line in a factory, large enzyme complexes put these active agent molecules together. A team of the Technical University of Munich (TUM) and the Goethe University Frankfurt has now succeeded in investigating the basic mechanisms of...
Incoming CEOs with premium pay packages perform accordingly, study shows
Life as we know it could not exist without Earth's magnetic field and its ability to deflect dangerous ionizing particles. It is continuously generated by the motion of liquid iron in Earth's outer core, a phenomenon called the geodynamo. Despite its fundamental importance, many questions remain unanswered about the geodynamo's origin. New work examines how the presence of lighter elements in the...
Increased risk of injury in contact sports after prolonged training restrictions
New research from the University of Notre DameÂ examines how compensation for incoming chief executives -- which serves as a sign of the board's upfront confidence in the CEO's ability -- is related to subsequent performance in the years that follow.
Injections are two-and-a-half times safer when nurses use revamped guidelines
Athletes who play contact sports are being particularly hard-hit by the prolonged restrictions imposed on games and training, according to a new study.
Innovations for sustainability in a post-pandemic future
Injections are two-and-a-half times safer when nurses use revamped guidelines.
IU School of Medicine study paves way for earlier autism diagnosis in Indiana
The COVID-19 pandemic has thrust the world into turmoil and disrupted the status quo, but it is also providing opportunities for innovation in the way we live and work. According to the latest report released by The World in 2050 (TWI2050) initiative, the crisis can provide an opportunity to create sustainable societies with higher levels of well-being for all.
Lack of lockdown increased COVID-19 deaths in Sweden, analysis finds
Led by Nancy Swigonski, MD and Mary Ciccarelli, MD, a team of faculty at Indiana University School of Medicine have developed a statewide early ASD screening and evaluation system in the primary care setting showing success in improving access to evaluations and lowering the age of diagnosis. This study, published July 6 in Pediatrics, is the first of its kind in the U.S. to include health care...
Leap in lidar could improve safety, security of new technology
The analysis will help doctors understand the effects of individual compliance with infection-control measures.
Light a critical factor in limiting carbon uptake, especially in the north
Researchers have developed a new silicon chip with major applications in lidar systems for self-driving cars and smart phones.
Liquid crystal integrated metalens for versatile color focus
A new Columbia Engineering study demonstrates that even when temperatures warm and cold stress is limited, light is still a major factor in limiting carbon uptake of northern high latitudes. The team analyzed satellite observations, field measurements, and model simulations and showed that there is a prevalent radiation limitation on carbon uptake in northern ecosystems, especially in autumn.
Low-threshold topological nanolasers based on the second-order corner state
A research team from Nanjing University recently demonstrated active manipulation of chromatic dispersion, achieving achromatic focusing within a designated broadband.
LSU Health New Orleans discovers new class of safer analgesics
Topological lasers are immune to imperfections and disorder, which are mostly at microscale. The topological nanolaser with small footprint, low threshold and high energy-efficiency has yet to be explored. Scientists in China demonstrated a topological nanolaser utilizing the second-order corner state in 2D photonic crystal slab with a low threshold of about 1 μW and a high spontaneous...
Machine learning reveals vulnerabilities in 3D-printed carbon-fiber composites
Researchers at LSU Health New Orleans Neuroscience Center of Excellence and colleagues have discovered a new class of pipeline drugs to relieve pain and reduce fever without the danger of addiction or damage to the liver or kidneys.
Making plastic more transparent while also adding electrical conductivity
Components made of glass- and carbon- fiber reinforced composites, soaring in high-performance applications, can be 3D printed. A team of researchers from NYU Tandon School of Engineering found that the printer head toolpaths are easy to reproduce -- and therefore steal -- with machine learning (ML) tools applied to the microstructures of the part obtained by a CT scan.
Moffitt researchers identify protein that causes epithelial cancers to spread
In an effort to improve large touchscreens, LED light panels and window-mounted infrared solar cells, researchers at the University of Michigan have made plastic conductive while also making it more transparent.
Multisample technique to analyze cell adhesion
In a new article published in the July issue of Cancer Research, Elsa Flores, Ph.D., and her team discovered a key protein that oscillates its expression through microRNA regulation to facilitate cancer spread to distant organs. This protein is deltaNp63, a member of the p53 family of tumor suppressor genes.
NASA finds wind shear battering tropical storm Edouard
An assay for imaging the physical interactions between multiple cell populations could help cancer research and treatment assessment.
Nematode has potential to reduce cotton yields by 50 percent
The latest tropical storm in the Atlantic Ocean formed one day ago and was already being battered by wind shear. NASA's Aqua satellite imagery revealed Tropical Storm Edouard's strongest storms were being displaced by strong southwesterly winds.
Neurobiology -- How much oxygen does the brain need?
The reniform nematode is one of the most commonly found pests of cotton, with the ability to cause severe economic damage. In order to assess exactly how much damage the reniform nematode can cause, plant pathologists at Auburn University conducted a field trial comparing a clean field to a reniform-infested field.
New guideline: Don't routinely screen for EAC in patients with chronic GERD
The brain has a high energy demand and reacts very sensitively to oxygen deficiency. Ludwig-Maximilians-Universitaet (LMU) in Munich neurobiologists have now succeeded for the first time in directly correlating oxygen consumption with the activity of certain nerve cells.
New high proton conductors with inherently oxygen deficient layers open sustainable future
A new guideline from the Canadian Task Force on Preventive Health Care, based on a rigorous systematic review of the latest evidence, found no benefit of routine screening for esophageal adenocarcinoma (EAC) and precursor conditions (Barrett esophagus and dysplasia) in patients with chronic gastroesophageal reflux disease (GERD). The guideline, published in CMAJ (Canadian Medical Association...
New insights into van der Waals materials found
Scientists at Tokyo Institute of Technology (Tokyo Tech) and the Australian Nuclear Science and Technology Organisation (ANSTO), discover a new family of high proton-conducting materials -- 'the hexagonal perovskite-related oxides' -- and shed light on the underlying mechanisms responsible for their conductivity. Their findings lead the way to uncovering other similar materials, furthering the...
Layered van der Waals materials are of high interest for electronic and photonic applications, according to researchers at Penn State and SLAC National Accelerator Laboratory, in California, who provide new insights into the interactions of layered materials with laser and electron beams.