ROCHESTER, N.Y. — From time to time, it is worth taking a moment to look up at the sky as you may catch a glimpse of something unusual. Atmospheric optics can produce fascinating visual effects, many ...

Add Yahoo as a preferred source to see more of our stories on Google. In a discovery that challenges conventional optics, scientists have managed to make a laser beam cast its own shadow—a feat ...

Shadows have been integral to humanity’s exploration of light and its properties. From their depiction in ancient shadow puppetry to their role in groundbreaking scientific discoveries, shadows have ...

Cycling after dark has become safer and more stylish than ever, thanks to the evolution of modern LED bike light technology. What began with basic incandescent bulbs has transformed into sleek, ...

PROVIDENCE, R.I. [Brown University] — With a new microscopy technique that uses blue light to measure electrons in semiconductors and other nanoscale materials, a team of Brown University researchers ...

Jenoptik is a globally operating technology group. Optical technologies are the very basis of our business with the majority of our products and services being provided to the photonics market.

Credit: Tufts University. Functional near-infrared spectroscopy (fNIRS) measuring how light is absorbed by blood in the brain ...

Researchers have found that under certain conditions, a laser beam can act like an opaque object and cast a shadow, opening new possibilities for technologies that could use a laser beam to control ...

Can light itself cast a shadow? It may sound like a philosophical riddle, but researchers have found that under certain conditions, a laser beam can act like an opaque object and cast a shadow. The ...

For the experiment, a high-power green laser was directed through ruby cube and illuminated with a blue laser from the side. The green laser increases the optical absorption of the blue illuminating ...