论文标题
在金属表面附近的光学薄增益培养基中，激光与没有反转的激光
Lasing versus lasing without inversion in an optically thin gain medium near a metal surface
论文作者
论文摘要
在金属表面上处置的活性中心的光学薄层中的激光理论是从第一原理发展出来的。该方法基于对本地场的严格描述，在反射表面的紧密附近，为活动中心的偶极振荡提供了反馈。证明增益中等厚度在激光条件下起着至关重要的作用，并控制了从常规激光转变为无反转的激光的转换。对与金表面接壤的Erbium掺杂玻璃进行了数值计算，其中可以生成电信波长（1532 nm）处的辐射。
A theory of lasing in an optically thin layer of active centers disposed at a metal surface is developed from first principles. The approach is based on a rigorous account of the local field in a close vicinity of a reflective surface which provides a feedback for dipole oscillations in active centers. It is demonstrated that the gain medium thickness plays a crucial role in the lasing condition and controls a switching from conventional lasing to lasing without inversion. The numerical calculations are carried out for erbium doped glass bordering a gold surface where radiation at telecom wavelength (1532 nm) can be generated.
