他指出,由于布拉格衍射效应,在同样具有螺旋结构的胆甾相液晶中也观察到了类似的光子自旋滤波。
He points out that a similar spin-filtering of photons due to Bragg diffraction has been seen in cholesteric liquid crystals, which also have a helical structure.
为了定量描述波带板的衍射效应,定义了临界衍射距离。
Meanwhile, a critical diffraction distance was defined to describe the diffration effect of the FZP quantitatively.
与衍射效应产生的色散相比,透镜本身的折射率色散很小。
The dispersion caused from the chromatic aberrations of lens is smaller than that from diffraction effects of it.
根据这种自衍射效应,归纳了四种记录和光固定实验组合方案。
Based on this self diffraction effect, four kinds of recording and optical fixing procedures are set up.
刷新率的变化和黑栅衍射效应将导致衍射效率下降,使得曝光深度误差增加。
The variation of refresh rate and diffraction by opaque lattice will lead to reducing diffraction efficiency and this will increase exposure depth error.
受衍射效应的限制,聚焦红外光斑的尺寸往往大于焦平面阵列像素尺寸,串音测量遇到了极大困难。
Limited by diffraction effect, the size of focused IR spot is usually larger than the pixel pitch of FPAs, hence the crosstalk testing is quite difficult.
本文给出了一种基于时域有限差分法(FDTD)的数值方法,计算制备在QWIP器件上的金属光栅的衍射效应。
A numerical approach based on finite difference time domain (FDTD) method was presented for investigating the diffraction effect of a metal grating fabricated in QWIP.
由于电信号传输系统保密性和抗干扰能力差,为此,利用声光晶体的衍射效应研制了一种光信号自由空间传输系统。
To resolve this problem, a free space transmission system for optical signals is developed on base of diffraction effect of acoustooptic crystal.
光刻过程中由于光的衍射效应产生的非线性畸变对光刻面形质量具有严重影响,是造成光刻微结构图形失真的主要原因之一。
Nonlinear distortion caused by diffraction in the lithography process has severely affected the quality of surface profile, which is the main reason for pattern distortion in lithography.
基于标量衍射理论,考虑衍射效应的条件下,从理论上推导了编码孔径点扩散函数的公式,并对环形编码孔径进行了详细的讨论。
Considering diffraction effect based on scalar theory, we deduced a formula for point spread function of the coded aperture and discussed the ring coded aperture in detail.
在国内外普遍使用的细栅距幅光栅叠栅条纹系统中,衍射效应是很明显的,这是造成叠栅条纹信号的衬比(度)和正弦性不好的主要原因。
In an amplitude grating system of small grid pitch, the diffractive light is the main cause to deteriorate the contrast and sinusoidal property of Moiré signals.
文中还给出了基于全息记录与擦除、自衍射与尺寸效应等的机理解释。
The mechanism analyses based on writing and erasure of the hologram, self diffraction and size effect are given.
这种全息材料具有较强的实时效应,较高的衍射效率,良好的抗潮能力和环境稳定性等特点。
The holograms made of this material have stronger real time effect, higher diffraction efficiency, better anti-humidity and environmental stability, etc.
提高端面抽运功率占有率,可在一定程度上减小热透镜效应对振荡光束尺寸和衍射损耗的影响。
The influences of the thermal lens effect on the oscillation beam radius and diffraction loss can be reduced by increasing the proportion of the end-pumping power.
表明了具有衍射极限的模式建立时间受放大率、腔长以及饱和效应的影响。
The results of the experiment indicated that the set up time of the diffraction limited mode in the resonator is influenced by magnification, cavity length and the gain saturation effect of the laser.
提出一种由轴棱锥产生的贝塞尔光干涉整形得到具有自成像塔尔博特效应的近似无衍射局域空心光束的新方法。
A novel technique to produce the self-imaging Talbot effect, nearly non-diffracting bottle beams which were interfered by the two Bessel beams generated from the axicons was proposed.
在光栅谱衍射干涉法的基础上,本文提出用色散效应产生的相位体微分干涉条纹,进行实时假彩色编码的原理。
A new principle is proposed to pseudocolor-code the differential interference in the grating-diffraction interferometry with extended white light illumination by using dispersion effect of a prism.
理论分析表明,该现象可以用光克尔效应和热光非线性效应共同作用下的附加相位孔对入射光束的衍射行为来解释。
This phenomenon can be explained by the diffraction effect of the Gaussian beam from the laser induced phase hole in the nonlinear medium caused by Kerr effect and thermo optic effect.
通过扫描电镜、X射线衍射及硬度测量,对镀层在稳定化处理过程中的显微组织及硬化效应进行了测定与分析。
The microstructure and hardening behavior of the NiP deposit during stabilizing treatment were determined and analysed by SEM, Xray diffraction and hardness measurement.
使用穆斯堡尔效应、x射线衍射分析及质子x射线荧光分析法,分析了地下钢管腐蚀产物的相态及其随锈层深度的变化。
The phases of corrosion products on underground steel tube and their changes with depth of rust layer were analysed using Mossbauer effect, X - ray diffraction and proton X -ray fluorescence analysis.
通过X射线衍射和磁性测量研究了样品的物相结构和磁热效应。
The structure and magnetocaloric effect in the compounds were investigated by means of X-ray diffraction and magnetic measurements.
把B - T理论和标量衍射理论相结合,建立起热像效应的衍射理论分析方法。
Combining the B-T theory and the scalar quantity diffraction theory, a diffraction theory method for the analysis of the hot-image formation is developed.
光折变空间光孤子是指当光折变材料的自聚焦效应与光束的衍射发散作用相平衡时,在介质内无衍射向前传播的光束。
Photorefractive (PR) spatial solitons form when the self-focusing of a light beam inside the PR material exactly balances the diffraction of the beam.
按照参量互作用的观点推出多维声电光效应的耦合波方程,并给出多维声电光效应衍射效率计算公式。
The coupled wave equation of multi dimensional Acousto electro optic(AEO)effect is derived according to the opinion of parameter interaction.
本文采用原子力显微镜和X射线粉末衍射仪研究了PVA溶液旋转涂膜的溶剂化效应。
The solvent effect on the preparation of PVA film by low speed spin machine was studied by using AFM and XRD.
通过研究激光照准系统中柱形边缘引起的边缘衍射和干涉效应,分析其对边缘瞄准精度的影响。
The interference and diffraction phenomenon created by cylinders edge in the course of the pointing of the laser aiming system are discussed in this paper.
本文研究了一种利用光栅衍射的多普勒效应进行位移测量的新方法。
This paper discusses a new method for measuring displacement using grating Doppler effect.
本文考虑了嵌镶晶体中经各级衍射的X射线的偏极化状态的变化,对次级消光效应作了较严密的处理。
Account is taken of the change in the state of polarization of multiply diffracted X-rays in Mosaic crystals, and a more rigorous treatment of secondary extinction is given.
为了研究激光二维传播,开发研究了二维激光传播程序HEATER,考虑介质对激光的吸收、衍射和折射效应。
In order to study two-dimensional propagation of laser, we have also studied and used the two-dimensional laser propagation code, the HEATER.
为了研究激光二维传播,开发研究了二维激光传播程序HEATER,考虑介质对激光的吸收、衍射和折射效应。
In order to study two-dimensional propagation of laser, we have also studied and used the two-dimensional laser propagation code, the HEATER.
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