相位光栅 meaning in Chinese
phase grating
Examples
- Besides the simulations , some vpgs were also made using technology of h - pdlc and some of their important characters have been measured . further research is now going on
本文还从实验上对体相位光栅进行了研究，利用h ? pdlc制成了若干个体相位光栅样品，并对其重要特性进行了测试，更进一步的研究仍在进行中。 - Thus , the equalizer should alter its gain spectrum as the edfa ' s operate point changes . based on the theory of thick grating , characters of vpg ' s transmissive gain spectrum were studied . using the genetic algorithm , novel dge ( including several vpgs ) was designed
本文根据体相位光栅的理论，研究了体相位光栅增益谱随各参数的变化，并根据体相位光栅的增益谱特性，借助遗传算法，用多个体相位光栅实现了edfa的动态增益补偿。 - In this paper we present the theory of the formation of photorefractive gratings and its filtering mechanism , and discuss the recording method in linbo3 : fe crystal and its application in demultiplexing system . the main contents are following : ( 1 ) the formation mechanism , diffraction efficiencies and wavelength sensitivity of the photorefractive volume grating in photorefractive crystals are theoretically analyzed
本文主要从理论上分析了光折变光栅的形成机理和多重光折变体光栅的滤波原理，并从实验上探讨了在linbo _ 3 : fe晶体中写入光折变体相位光栅的方法及其在波分解复用系统的应用。 - Difference iterative method was used to estimate numerically director configurations in the nlc - bl037 cell in this paper . the refractive indices and phase retard of nlc in electric field was presented on the basis of the calculation of liquid crystal director distributions . then we analysed the diffraction phenomenon when the linearly polarized light was controlled by diffraction grating which was based on rectangular grating and sinusoidal phase grating models and we got it ’ s math model 。 finally we designed the nlc phase grating and we did the experiment to validate the theoretic calculation
文中利用差分迭代法计算了向列相液晶bl037盒中指向矢分布的计算,根据指向矢的分布情况得到了向列相液晶的双折射率分布和非常光通过液晶盒产生的相位延迟随电压变化;并在矩形光栅和正弦相位光栅的基础上,分析了入射偏振光通过液晶电控光栅所产生的衍射情况。 - The mechanism for optical storage in these materials has been attributed to a statistical reorientation of the azobenzene chromophors perpendicular to the polarization of the incident electric field of the pump laser beam . the photoinduced birefringence and holographic storage in methyl orange dyes ( mo ) doped polyvinyl alcohol ( pva ) films were reported firstly in this thesis . the relationship between the photoinduced birefringence and the dye content and pumping power was investigated by using the writing light of 532 nm ( double - frequency of nd : yag laser ) and the reading light of 632 . 8 nm
本文研究了甲基橙( mo )偶氮苯染料掺杂聚乙烯醇( pva )薄膜的光致双折射和全息光存储特性，利用yag激光2倍频( 532nm )作为写入光， he ? ne激光( 632 . 8nm )作为读出光，研究含有不同染料浓度pva薄膜的光致双折射特性，探讨了光致双折射和泵浦光功率的关系，实现了全息光存储，所得光栅生长曲线包含快过程和慢过程，快过程以异构相位光栅的生长为主，慢过程以取向光栅的生长为主，对此实验结果本文给出了合理的理论解释。