Weird Light-Bending Experiment Turns Scientists Into ‘Coneheads’
Top, clockwise from left: Patrice Genevet, Nanfang Yu, Federico Capasso, Zeno Gaburro, and Mikhail A. Kats. Bottom: A simulation of the image that would appear in a large mirror patterned with the team’s new phase mirror technology. CREDIT: Eliza Grinnell and Nanfang Yu |
In a mind-bending, and light-bending, discovery, scientists have produced a fun-house-like warping of light that defies existing laws of physics.
For centuries, simple equations (taught every year to high-school physics students) have described how light moves through different media, for example from air into glass. Now, however, researchers have found that if the boundary between media is sufficiently complex (in this case, coated with nano-sized wires), those laws no longer apply.
The discovery has prompted the physicists to rewrite the traditional equations to account for the characteristics of the boundary surface. In most cases where these tweaked equations are applied, the new laws simplify back to their traditional forms, but sometimes, they show that light can behave in incredibly strange ways