"Control of Power in Parity-Time Symmetric Lattices"

TYPESpecial Seminar - Solid State Institute, Technion
Speaker:Doctor Maksim Kozlov
Affiliation:Center for Energy Research, National Lab. Astana,Nazarbayev University,Astana,Republic of Kazakhstan
Location:Solid State Auditorium(Entrance)
Remark:Host: Associate Professor Oren Cohen
Abstract: We investigate wave transport properties of Parity-Time symmetric lattices that are periodically modulated along the direction of propagation. We demonstrate that in the regime of unbroken Parity-Time symmetry the system Floquet-Bloch modes may interfere constructively leading to either controlled oscillations or power absorption and unlimited amplification occurring exactly at the phase transition point. The differential power response is effected by the overlap of the gain and loss system distribution with wave intensity pattern that is formed through Rabi oscillations engaging the coupled Floquet-Bloch modes.