摘要
Ｆ２＾＋型心具有跃迁偶极矩大、Ｓｔｏｋｅｓ位移适当、效率高、调谐范围覆盖０．８￣４．０μｍ近外区等优点。是一种具有实际应用价值的色心激光工作心。它的能级结构可用Ｈ２＾＋模型加以描述。利用与激光运转相关的１ｓσｇ、２ｐσｕ、２ｐπｕ能级的正常态和弛豫态特征可以阐述Ｆ２＾＋型心的激光四能级系统和辅助光的作用。多数Ｆ２＾＋型色心激光器的稳定运转需要有辅助光的激励。
Like F￣+_2 color center,F￣+_2 -type center has a strong dipole moment,3 sufficient Stokes shift to allow low self-absorption,yet high efficiency,and broad tunable emission ranges in 0.8-4.0 μm NIR,and made it a potentially useful laser medium,The energy level diagram of F￣+_2-type center shows an excellent agreement with H￣+_2model.Based on the normal and relaxed states of lsσ_g,2pσ_u,2pπ_u,authors summarize the four-level system of F￣+_2-type center and analyze the effect of auxiliary light.Many F￣+_2-type color-center lasers require an auxiliary light for stable and efficient operation. This auxiliary light is used to compensate the reorientation induced by intense optical pumping.
出处
《激光杂志》
CAS
CSCD
北大核心
1995年第3期97-100,104,共5页
Laser Journal
基金
福建省自然科学基金
