摘要:衍射光学元件(diffraction optical element) 它和传统的折射、反射光学元件不同。它是利用衍射原理有效地控制光波的波前,以实现各种不同的功能。
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phase type diffraction optical element 位相型衍射光学元件单元
Focal depth of laser beam is advanced by diffraction optical element in this paper.
本文使用衍射光学元件来提高激光束的焦深。
Several examples shown in this Paper indicate that it is a valuable design method of the diffraction optical element.
文中给出了几个实例,充分表明这是有实用价值的一种衍射光学元件设计方法。
The relief structure of diffraction optical element can be written precisely but very slowly with the raster scan mode bye-beam.
用电子束逐行扫描方法刻蚀衍射光学元件的浮雕结构精度高而速度低。
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