Scientists have demonstrated that negative refraction can be achieved using atomic arrays -- without the need for artificially manufactured metamaterials. Scientists have long sought to control light ...

The incident angle can be varied from 0 to 85 degrees. (In 5 degree increments using the +-5 buttons.) The index of refraction of the first medium is fixed at n=1.00. The index of refraction of the ...

I am constantly scanning the sky. It’s just what I do. On my commute home from the University of Georgia yesterday, I saw something that always excites me. I quickly grabbed my phone, rolled down the ...