中文摘要：

由数字地解决马方程和率方程在一二维(2D ) 用有一个三水平的原子系统的红宝石谷物做的活跃随机的媒介，为 THz 随机的激光的阀值获得行为被调查。光谱有抽的率的紧张变化为两个被计算横向磁性(TM ) 回答并且横向电(TE ) 领域。计算结果证明放射激光的那 THz 随机能发生在 2D TM 和 TE 案例的混乱媒介。进一步的分析表明放射激光的 THz 为 TM 领域的阀值为 TE 领域是比那低的。

英文摘要：

By numerically solving Maxwell＇s equations and rate equations in a two-dimensional （2D） active random media made of ruby grains with a three-level atomic system, the threshold gain behavior for a THz random laser is investigated. The spectral intensity variation with the pumping rate is calculated for both the transverse magnetic （TM） field and the transverse electric （TE） field. The computed results show that THz random lasing could occur in a 2D disordered medium for both the TM and TE cases. Further analysis reveals that the THz lasing threshold for TM fields is lower than that for TE fields.