Tag Archives: hui cao

With Random Lasers, Yale Researchers Fight Random Noise, Improve Imaging

By Guest PostMay 1, 2012Sciencebeam of light, biomedical engineering, blood flow, diagnostic radiology, embryo heart, eric gershon, hui cao, illumination, imaging equipment, leds, light source, medical, michael a choma, pediatrics, photon, random laser, spatial mode, traditional lasers, yale university

Using “random lasers” as a source of illumination in medical imaging equipment could improve both processing time and the clarity of the final images, according to new research by Yale University scientists.

Imaging systems currently rely on a variety of light sources — specialty light bulbs, light-emitting diodes (LEDs), and traditional lasers. But systems using traditional lasers, the brightest of these light sources, often yield undesirable visual byproducts that mar the final picture. One common byproduct, speckle, looks something like a snowfall pattern. (more…)

Yale Research Reveals Ancient Moth’s True Colors

By Guest PostNovember 15, 2011Nature, Scienceanatomical details, birds, camouflage, chemical pigments, colors of ancient beetles, derek e g briggs, electron microscopy, feathered dinosaur, fishes, fossils from germany, Frankfurt, function and evolution, heeso noh, hui cao, insects, long extinct creatures, maria e mcnamara, messel oil shale pit, national science foundation, organisms, original colors of an ancient moth, peabody museum of natural history, structural colors, university college dublin, yale paleontologist, yale university

A research team led by Yale University scientists has for the first time determined the original colors of an ancient moth, based on nearly 50 million-year-old fossils from Germany.

The discovery could help scientists learn the colors of a wide variety of long-extinct creatures, including birds, fishes, and other insects, and shed light on color’s function and evolution. (more…)