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1)  photorefractive volume holographic grating
光折变体全息光栅
1.
Considering the dispersion effect of the grating media,the coupled wave theory of Kogelnik was developed to study the diffraction properties of an ultra-short pulsed laser beam with different polarization states by a photorefractive volume holographic grating.
在Kogelnik耦合波理论的基础上,考虑光栅记录介质的色散效应的影响,研究了光折变体全息光栅对不同偏振状态的超短脉冲激光光束衍射的性质,讨论了高斯型入射脉冲激光光束的谱宽与光栅的有效衍射谱宽之比不同时,衍射和透射光束的光谱宽度、时间宽度、波形和衍射效率的变化。
2)  local volume photorefractive holographic gratings
局域光折变体全息光栅
1.
Both dynamic mechanisms and diffraction characteristics of the local volume photorefractive holographic gratings recorded by two finite bounded plane waves in doubly doped LiNbO_3∶Fe∶Mn crystals are investigated,by taking into account both the band transport model and two-dimensional coupled-wave theory.
数值计算结果表明,局域光折变体全息光栅的空间电荷场在空间上呈不均匀分布。
3)  photorefractive hologram grating
光折变全息光栅
4)  volume holographic grating
体全息光栅
1.
The study of H-PDLC volume holographic grating with high diffraction efficiency;
高频高衍射效率H-PDLC体全息光栅的研究
2.
The coupled wave equations of volume holographic grating in photorefractive single-axis crystal in the discretional direction of the optical axis are derived in terms of proper coordinate transformation and Kogelnik s one-dimensional coupled wave theory.
利用坐标旋转方法和Kogelnik耦合波理论,建立了光轴方向任意时单轴晶体中体光栅布拉格衍射的耦合波方程,分析了Li NbO3晶体的光轴方向对光折变体全息光栅的各向同性和各向异性布拉格衍射性质的影响。
3.
Based on the three- dimensional coupled wave theory, the theory of diffraction of local volume holographic gratings recorded with arbitrary polarization plane waves is studied.
基于三维耦合波理论 ,研究了两束有限宽度的任意偏振平面波干涉产生的局域体全息光栅的衍射问题。
5)  volume grating
体全息光栅
1.
Study of the angle selectivity of volume grating;
体全息光栅角度选择性的研究
2.
The characteristics of polymer dispersed liquid crystal(PDLC) and holographic polymer dispersed liquid crystal(H-PDLC) volume grating are introduced.
介绍了聚合物分散液晶(PDLC)材料及体全息光栅的特性,提出了基于全息聚合物液晶(H-PDLC)电控光栅多极串联式动态增益均衡器的设计。
6)  volume hologram grating
体全息光栅
1.
Effects of the Change in Average Permittivity of Volume Hologram Grating on Its Diffraction Efficiency And Compenstion;
体全息光栅平均介电常数的变化对其衍射效率的影响和补偿
补充资料:全息光栅
分子式:
CAS号:

性质:利用全息照相技术制作的光栅。在光学稳定的平玻璃坯件上涂上一层给定型厚度的光致抗蚀剂或其他光敏材料的涂层。由激光器发生两束相干光束,使其在涂层上产生一系列均匀的干涉条纹,则光敏物质被感光。然后用特种溶剂溶蚀掉被感光部分,即在蚀层上获得干涉条纹的全息像。所制得为透射式衍射光栅;如在玻璃坯背面镀一层铝反射膜后,可制成反射式衍射光栅。这种方法制造的光栅线槽密度高,划面宽度大,刻线可达3663~4234条/mm,面积可达165×320mm2。全息光栅没有鬼线和像散,杂散光小,可消除机刻光栅的固有缺点,其实际分辨本领可达理论分辨本领的80%~100%。

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