Publications in Scientific Journals:

M. Liertzer, L. Ge, A Cerjan, A.D. Stone, H.E. Tureci, S. Rotter:
"Pump-induced exceptional points in lasers";
Physical Review Letters, 108 (2012), 17; 173901-1 - 173901-5.

English abstract:
We demonstrate that the above-threshold behavior of a laser can be strongly affected by exceptional points which are induced by pumping the laser nonuniformly. At these singularities, the eigenstates of the non-Hermitian operator which describes the lasing modes coalesce. In their vicinity, the laser may turn off even when the overall pump power deposited in the system is increased. Such signatures of a pump-induced exceptional point can be experimentally probed with coupled ridge or microdisk lasers.

"Official" electronic version of the publication (accessed through its Digital Object Identifier - DOI)

Created from the Publication Database of the Vienna University of Technology.