His analyses showed that experimentally observed interference patterns, maxima and minima, could in fact be explained in terms of bright (detectable) and dark (undetectable) states of light.

Even after over 200 years of their discovery, light interference continues to intrigue scientists. For instance, classical physics suggests that when two light waves meet, they can either amplify ...

For Higher Physics, learn how waves can produce interference patterns. Calculate the wavelength of light using diffraction grating data.

Athos Petrou, a UB Distinguished Professor in the Department of Physics, measured the energy difference between the separated valleys by bouncing light off the material and measuring the energy of ...

His analyses showed that experimentally observed interference patterns, maxima and minima, could in fact be explained in terms of bright (detectable) and dark (undetectable) states of light.