A microelectronic photonic structure and a device and a system including the structure are disclosed. The photonic structure includes an ion conductor and a plurality of electrodes. Optical properties of the structure are altered by applying energy across the electrodes. ...http://www.google.com/patents/US20030048519?utm_source=gb-gplus-sharePatent US20030048519 - Microelectronic photonic structure and device and method of forming the same