Physics Department, Ben Gurion University of the Negev, P.O. Box 653, Beer Sheva, 84105, Israel.
Opt Lett. 2011 Aug 1;36(15):2779-81. doi: 10.1364/OL.36.002779.
A model of a superradiant laser comprising of N three-level systems driven by two pumping lasers is considered in semiclassical approximation. Steady-state equations for density matrix elements are solved both analytically and numerically. Various properties of generated light are investigated. It is found that such a laser can exhibit both superradiance, when the intensity scales as N(2), and subradiance when the intensity does not depend on N. The phase of the laser field is locked to the relative phase of the pumping lasers.
考虑了在半经典近似下由两个泵浦激光驱动的 N 个三能级系统组成的超辐射激光模型。通过解析和数值方法求解了密度矩阵元的稳态方程。研究了产生光的各种性质。结果表明，当强度与 N 的平方成正比时，该激光可以表现出超辐射，而当强度不依赖于 N 时，则表现出亚辐射。激光场的相位锁定到泵浦激光的相对相位。
