瞬态时间分辨谱测量方法的关键技术：设计和研制了专用于时间分辨谱采集分析的光束调制器。
The key technology of measuring time-resolved spectrum is to design and make the special light beam modulator that is used to the time-resolved spectrum detecting.
利用计算全息方法和空间光调制器产生了环形平顶涡旋光束。
We experimentally produce this beam with a computer-generated hologram (CGH) displayed on a spatial light modulator (SLM).
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