中国物理B ›› 1996, Vol. 5 ›› Issue (7): 505-510.doi: 10.1088/1004-423X/5/7/004
• CLASSICAL AREAS OF PHENOMENOLOGY • 上一篇 下一篇
龚尚庆, 徐至展, 腾华国
GONG SHANG-QING (龚尚庆), XU ZHI-ZHAN (徐至展), TENG HUA-GUO (腾华国)
摘要: The steady-state behavior of a simple three-level atomic system has been investi-gated by taking into account the effect of phase fluctuations in the driving field. For a monochromatic driving field, lasing with or without inversion can be established over a wide frequency range for the probe and driving fields. A large refractive index can also be generated even if the population inversion is positive. For a finite linewidth of the driving field, the refractive index enhancement tends to decrease. Furthermore, a behavior change from inversion laser to noninversion laser can occur as the driving field linewidth increases.
中图分类号: (Level crossing and optical pumping)