Zeitschriftenartikel:
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;
S. 173901-1
- 173901-5.
Kurzfassung englisch:
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.
"Offizielle" elektronische Version der Publikation (entsprechend ihrem Digital Object Identifier - DOI)
http://dx.doi.org/10.1103/PhysRevLett.108.173901
Erstellt aus der Publikationsdatenbank der Technischen Universität Wien.