And then , we measured x - ray diffractive spectrum of samples and investigated the crystal lattice structure of samples treated under different annealing temperature and different implantation condition comparing the diffraction peaks 然后,通过x射线衍射测量了样品的衍射谱,通过比较不同样品衍射峰的形状,了解了不同退火温度及注入条件下样品的晶格结构情况。
Because the feature size of subwavelength diffractive microlens is smaller than the incident wavelength , scalar diffractive theory cannot be used to the analysis . it also precludes rigorous vector coupled - wave theory for its finite and aperiod structure 由于亚波长衍射微透镜的特征尺寸小于入射波长,因此不能采用标量衍射理论来分析,又由于它是有限非周期的结构,严格的耦合波方法对它也不适用。
The refractive / diffractive hybrid optical system is more simple , light , and compact . there are many applications for use in the measurement of convex secondary mirrors , ultraviolet spectroscopic instruments , armament , and space optical system 含有曲面衍射光学元件的光学系统结构更加简化,重量更轻,体积更小,因此在航天成像系统、军事领域、光学表面检测、光谱分析等领域具有重要的应用价值。
In order to break through the choke point of the traditional design of a telephoto lens , how to eliminate aberrance by means of hybrid refraction - diffraction was studied from the view of the phase polynomial of diffractive surface and phase transformation polynomial of general lens 摘要为了突破长焦物镜传统设计中的局限性,从衍射面的相位多项式出发,结合一般透镜的相位变换式,对折衍混合消像差理论进行了探讨。
The surface roughness of the fabricated micro - optics structure is in the nanometer range ; the feature height of the diffractive phase step is in the sub - micrometer range ; and can be adjusted according to requirements ; and the optical aperture of the microlens can be changed from millimeter to centimeter magnitude 所制微光学结构的表面粗糙度在纳米量级,衍射相位台阶的高度在亚微米量级并可以根据需求灵活调整,通光孔径在毫米至厘米量级的范围内可调。