Low-threshold lasing eigenmodes of an infinite periodic chain of quantum wires.
We study the lasing eigenvalue problems for a periodic open optical resonator made of an infinite grating of circular dielectric cylinders standing in free space, in the E- and H-polarization modes. If possessing a "negative-absorption" refractive index, such cylinders model a chain of quantum wires made of the gain material under pumping. The initial-guess values for the lasing frequencies are provided by the plane-wave scattering problems. We demonstrate a new effect: the existence of specific grating eigenmodes that have a low threshold of lasing even if the wires are optically very thin.
Institute of Radiophysics and Electronics, National Academy of Sciences of Ukraine, Kharkiv 61085, Ukraine. volodia.byelobrov@gmail.com
Volodymyr O
VO
Byelobrov
Jiri
J
Ctyroky
Trevor M
TM
Benson
Ronan
R
Sauleau
Ayhan
A
Altintas
Alexander I
AI
Nosich