研究者们现在正着手着让他们设备达到最优化，来看看他们的后向激光的强度还能提高多少。
The researchers now plan to optimize their set-up to see how much higher than can raise the gain of their backward laser.
该相机的工作原理是：用一束激光照在物体上，每一个像素点都被不同红外频率的激光照着，以此来优化放大在其他情况下太弱而看不见的信号。
The camera works by illuminating objects with a laser that emits a different infrared frequency for every single pixel, allowing them to custom-amplify a signal that would otherwise be too dim to see.
提出了一种优化设计激光器谐振腔参数的新方法。
A new design method to optimize a laser resonator is presented.
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