University of Minnesota engineering researchers have developed a chip on which both sound wave and light wave are generated and confined together so that the sound can very efficiently control the light.
The research was recently published in Nature Communications.
“Our breakthrough is to integrate optical circuits in the same layer of material with acoustic devices in order to attain extreme strong interaction between light and sound waves,” said Mo Li, assistant professor in the Department of Electrical and Computer Engineering and the lead researcher of the study.
Read more at: http://phys.org/news/2014-11-loud-chip.html#jCp
Relativity has fascinated many young minds (old too).
Below is a conversation between a student and a Physics Teacher on Facebook chat.