The compression of amplified chirped pulse by parallel grating pair is an important step in generating ultrashort ultrahigh intensity pulse.
两平行光栅对放大啁啾脉冲的压缩是产生超短超强激光的一个重要环节。
A vector theory for diffraction of multi step phase grating is presented.
采用矢量理论处理了多台阶位相光栅的衍射问题。
The invention provides 16-step dual-frequency grating phase shift profilometry capable of absolute phase unwrapping in the three-dimensional sensor technology.
本发明是三维传感技术中一种可绝对位相展开的十六步双频光栅相移轮廓 术。
The two-step Talbot grating is fabricated and tested. Experimental results show that the Talbot grating indeed has the good ability of spatial color separation.
研制并实验测试了两台阶泰伯光栅，实验结果表明泰伯光栅具有良好的空域色分离能力。
The third step, a new method of high-precision calibration with grating grooves is presented for the optical imaging system.
再者，提出了一种新的使用光栅刻线进行成像系统精度标定的方法。
There is no visible defect found in the cross-section. Using this two-step metallization method, the in-fiber Bragg grating can be well protected and its thermal sensitivity can be enhanced.
采用这种基于化学镀-电镀的两步法不但可以对光纤光栅进行良好的保护，而且在金属化保护的过程中光纤光栅的温度灵敏度明显提高。
For red and green colors, a two-step Talbot grating is optimized and the light efficiency reaches over 95%.
对于红、绿两色光，对两台阶泰伯光栅进行优化，其光能利用率大于95%。
For red and green colors, a two-step Talbot grating is optimized and the light efficiency reaches over 95%.
对于红、绿两色光，对两台阶泰伯光栅进行优化，其光能利用率大于95%。
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