Record-breaking laser link could help us test whether Einstein was right
IMAGE: UWA’s rooftop observatory. view more Credit: ICRAR Scientists from the International Centre for Radio Astronomy Research (ICRAR) and The University of Western Australia (UWA) have set a world record for the most stable transmission of a laser signal through the atmosphere. In a study published today in the journal Nature Communications, Australian researchers teamed up with researchers […]
Controlling chemical catalysts with sculpted light
IMAGE: Depiction of the experimental setup where palladium nanorods lie atop gold nanobars. In this image, an electron beam is directed at the sample to watch the catalytic interactions between the… view more Credit: Katherine Sytwu Like a person breaking up a cat fight, the role of catalysts in a chemical reaction is to hurry up […]
Researchers at Brazil’s space institute discover why lightning branches and flickers
IMAGE: Analysis of the first super slow motion recordings of upward flashes suggests a possible explanation for the formation of luminous structures after electrical discharges split in the atmosphere view more Credit: INPE Researchers at Brazil’s National Space Research Institute (INPE), in partnership with colleagues in the United States, United Kingdom and South Africa, have recorded […]
Metastable metallic nanoparticles could find use in electronics, optics
Rice University scientists extended their technique to produce graphene in a flash to tailor the properties of 2D dichalcogenides molybdenum disulfide and tungsten disulfide, quickly turning them into metastable metallics for electronic and optical applications. Credit: Tour Group/Rice University Rice University scientists have extended their technique to produce graphene in a flash to tailor the […]
Comb of a lifetime: a new method for fluorescence microscopy
IMAGE: 2D arrangement of 44,400 light stopwatches enables scan-less fluorescence lifetime imaging view more Credit: Tokushima University Fluorescence microscopy is widely used in biochemistry and life sciences because it allows scientists to directly observe cells and certain compounds in and around them. Fluorescent molecules absorb light within a specific wavelength range and then re-emit it at […]
See live cells with 7 times greater sensitivity using new microscopy technique
IMAGE: Researchers at the University of Tokyo have found a way to enhance the sensitivity of existing quantitative phase imaging so that all structures inside living cells can be seen simultaneously,… view more Credit: s-graphics.co.jp, CC BY-NC-ND Experts in optical physics have developed a new way to see inside living cells in greater detail using existing […]
Putting on the pressure improves glass for fiber optics
IMAGE: The voids (yellow) in silica glass become much smaller when the glass is quenched at higher pressures. view more Credit: Yongjian Yang, Penn State Rapid, accurate communication worldwide is possible via fiber optic cables, but as good as they are, they are not perfect. Now, researchers from Penn State and AGC Inc. in Japan suggest […]
Putting on the pressure improves glass for fiber optics — ScienceDaily
Rapid, accurate communication worldwide is possible via fiber optic cables, but as good as they are, they are not perfect. Now, researchers from Penn State and AGC Inc. in Japan suggest that the silica glass used for these cables would have less signal loss if it were manufactured under high pressure. “Signal loss means that […]
Experiment takes ‘snapshots’ of light, stops light, uses light to change properties of matter
PITTSBURGH–Light travels at a speed of about 300,000,000 meters per second as light particles, photons, or equivalently as electromagnetic field waves. Experiments led by Hrvoje Petek, an R.K. Mellon professor in the Department of Physics and Astronomy examined ideas surrounding the origins of light, taking snapshots of light, stopping light and using it to change […]
Perfect transmission through barrier using sound
The perfect transmission of sound through a barrier is difficult to achieve, if not impossible based on our existing knowledge. This is also true with other energy forms such as light and heat. A research team led by Professor Xiang Zhang, President of the University of Hong Kong (HKU) when he was a professor at […]
