C.L.A. researchers matched the scattered light with the pump energy from another laser in a way that created constructive feedback, resulting in a net amplification of light. 加大洛杉矶分校研究人员让散射光与来自另一具雷射的能量相遇，以产生建设性的反馈，藉此放大光的净振幅。
Where a trough and crest coincide we get the total amplitude zero. 在波峰与波谷重合之处，总振幅实际上为零。
