laser generated second harmonic

例句：

1. 1. The laser generated a second harmonic that could be used for medical imaging.
   激光器产生了一个可以用来进行医疗成像的二阶谐波。
2. 2. The team successfully detected the second harmonic of the signal with high precision.
   该团队成功地以高精度检测到了信号的二阶谐波。
3. 3. In the field of quantum physics, the second harmonic is often used to study the properties of matter.
   在量子物理学领域，二阶谐波常被用来研究物质的性质。