Concentrating light in a volume as small as the wavelength itself is a challenge that is crucial for numerous applications.

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When a wave or light ray moves from one medium to another its speed changes. The direction of the ray may also change. This property of waves is called refraction and commonly occurs with light rays.

While many BYU students are buried in textbooks and waiting in long testing center lines at the end of the semester, some students’ final projects look a little different.