In aging societies, atherosclerosis (AS) and its major vascular complications, myocardial infarction and stroke, comprise a leading cause of morbidity and mortality. Additionally, childhood obesity is an increasing phenomenon all over the globe and will lead to increased occurrence of cardiovascular diseases at younger age. Research toward non-invasive methods for disease diagnosis is particularly important… Read more

When it comes to studying single molecules, scientists use a powerful technique called surface-enhanced Raman scattering (SERS). An extremely sensitive tool, SERS detects the vibrations within the atoms of the illuminated molecule as a change in light color. But the sensitivity of SERS is limited at room temperature because molecules vibrate too weakly. Ecole Polytechnique… Read more

Researchers have created an ultrafast all-optical switch on silicon nanostructures. The device may become a platform for future computers and permit to transfer data at an ultrahigh speed. This work belongs to the field of photonics, an optics discipline which appeared in the 1960’s, simultaneously with the invention of lasers. Photonics has the same goals… Read more

In the 21st century, photonic devices, which use light to transport large amounts of information quickly, will enhance or even replace the electronic devices that are ubiquitous in our lives today. But there’s a step needed before optical connections can be integrated into telecommunications systems and computers: researchers need to make it easier to manipulate… Read more

The world’s first entirely light-based memory chip to store data permanently has been developed by material scientists at Oxford University in collaboration with scientists at Karlsruhe, Munster and Exeter. The device, which makes use of materials used in CDs and DVDs, could help dramatically improve the speed of modern computing. Today’s computers are held back… Read more