Institute of Radiophysics and Electronics, National Academy of Sciences of Ukraine, Kharkiv 61085, Ukraine.
Opt Lett. 2010 Nov 1;35(21):3634-6. doi: 10.1364/OL.35.003634.
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.
我们研究了由置于自由空间中的圆形介质圆柱无限光栅构成的周期性开放式光学谐振腔的激光本征值问题，分别在 E 偏振和 H 偏振模式下进行研究。如果这些圆柱具有“负折射率”，则它们可以模拟由受激发射材料制成的量子线链。激光频率的初始猜测值由平面波散射问题提供。我们证明了一种新的效应：即使光纤非常薄，也存在具有低激光阈值的特定光栅本征模式。
