The results show that the Doppler background due to the near resonance of the intermediate level is eliminated and the signal of two-photon transition can be distinguished from saturationabsorption.
Pump absorptionsaturation makes the population of the lower pump level and the absorption coefficient decrease, and the output power is lower.
抽运光的吸收饱和使激光器运转时激光下能级的粒子数减小，吸收系数下降，激光器的输出功率较低。
3
CS-055 is relatively rapid rate of absorption, but the AUC were lower than the increase in the dose increased, suggesting that there may be absorbed by the saturation dose restriction of the trend.