| 1. | The aberration of holographic grating analysis 一种新的全息光栅制作方法及像差分析 |
| 2. | Bleached holographic grating 漂洗全息摄影栅 |
| 3. | Experimental determination of the diffraction angle of volume holographic gratings under off 体全息光栅偏移布拉格角读出时衍射角的测定 |
| 4. | Blaze wavelength . the peak wavelength in the typical efficiency curve for a ruled grating . also , for a holographic grating , the most efficient wavelength region 闪耀波长.常规光栅的典型效率曲线的波峰.对全息光栅而言,则是指最有效的波长区域。 |
| 5. | There are tradeoffs between these gratings : holographic gratings produce less stray light while ruled gratings are more reflective , resulting in higher sensitivity 这些光栅之间有交替:当常规光栅有更多反射时,全息光栅提供少量杂散光,从而产生更高的灵敏度。 |
| 6. | Moreover , the holographic grating was probed by 532 nm laser at low intensity and the dependence of the first order diffractive signal on the recording beam intensities was also presented 此外利用低功率532nm激光探测全息光栅并且得到了一级衍射信号与记录光功率之间的关系。 |
| 7. | The crowding clustering genetic algorithm has been applied to the varied - line - spacing holographic grating design in the national synchrotron radiation laboratory , and achieves satisfactory results 将拥挤聚类遗传算法应用于国家同步辐射实验室变间距全息光栅的设计,取得了满意的效果。 |
| 8. | The feasibility of the multiple photorefractive volume applying to wdm system is demonstrated by analyzing the diffractive properties of the eight holographic gratings superimposed in the linbo3 : fe crystal 通过对10 10 10mm ~ 3块状linbo _ 3 : fe晶体中用角度复用技术写入的8重体光栅的衍射特性分析,证实了光写入多重体光栅应用于波分复用系统的可行性。 |
| 9. | ( 3 ) the bragg - shift phenomenon of transmission holographic grating is investigated in theory and experiment . as a result , the bragg - shift phenomenon will be restrained when the intensity ratio of initial writing beams is one 对透射体全息光栅在读出过程中的布拉格漂移现象进行了理论和实验分析,得出在本实验条件下,当写入光强比为1 1时可以很好地抑制布拉格漂移现象的发生。 |
| 10. | Doped linbo3 ) have been considered as one kind of the most important materials for vhs owing to wider dynamic range and their commercial availability in large size . however , the volume holographic gratings in photorefractive crystals are liable to dark decay and erasure under readout illumination 体全息存储的首选记录材料是光折变晶体(如fe : linbo _ 3 ) ,但直接存储在晶体中的信息容易受光和热的影响而丢失。 |