photon gain

例句：

1. 1. The device is designed to increase the efficiency of photon gain.
   该设备旨在提高光子增益的效率。
2. 2. In this experiment, we observed a significant increase in photon gain.
   在这个实验中，我们观察到光子增益有显著增加。
3. 3. The researchers found that the use of lasers could significantly enhance photon gain.
   研究人员发现，使用激光器可以显著增强光子增益。