Programmable Photonic Circuit

Illustration of the programmable photonic circuit. Photons enter from the left, are processed and exit to the right. The connector at the centre top of the circuit is to the external control system. (Courtesy: Jacques Carolan et al./Science).
Wednesday, July 22, 2015
http://www.physics4thecool.com/2015_07_01_archive.html

.....things are moving right along in NanoLand. Interesting Future ahead.