diffractive 中文意思是什麼

diffractive 解釋
衍射的
  1. The waves should be sheared waves for the anisotropic aeo device and longitudinal waves for the isotropic aeo device. geometrical relationships of anisotropic acousto - optic effect in ln crystal and kdp crystals are studied by tangent - match condition. curves of incident angle vs. abaxial angle, diffractive angle vs. abaxial angle, extreme frequency vs. abaxial angle and acousto - optic merit vs. incident angle vs. abaxial angle are systematically gained and the design parameters are also calculated

    利用相切-匹配條件法研究了鈮酸鋰晶體及kdp晶體的反常聲光互作用幾何關系，系統地得到了以離軸角為自變量的各參數的計算公式及相應的關系曲線，通過數值分析方法給出了聲光優值隨中心頻率的變化曲線並給出了器件的設計參數。
  2. Abstract : the far - field spot characteristics of laser converted by random phase plate are analyzed theoretically, including the shape, size, rotational symmetry and diffractive efficiency of the spots, as well as the distribution of subsidiary spot. by comparing the influence of phase element shape ( triangular, square and hexagonal ) on the characteristics, we found that the random phase plate with hexagonal array structure is more suitable for the beam smoothing in laser fusion

    文摘:從理論上分析了激光經隨機位相板變換后在遠場的光斑特性（包括光斑的形狀、大小、旋轉對稱性、衍射效率以及旁瓣分佈） ，通過比較三種形狀位相元（等邊三角形、正方形和正六邊形）的遠場光斑特性，得知正六邊形位相元結構的隨機位相板更適合於激光聚變中的束勻化。
  3. Secondly, using compound on - axial holographic lens to design a diffractive / refractive hybrid object lens

    隨后，利用復合同軸全息透鏡設計了一個衍折混合照相物鏡。
  4. Diffractive characteristics of antireflective dielectric gratings with subwavelength periodic structure

    二維碼字結構及其實現方法
  5. In this paper we also designed the computer optical elements based on the scalar quantity diffractive theory, which can change the laser beam into a square frame. we mainly refered to the one of those improved algorithms of gerchberg - saxton ( gs ). with the computer simulation and drawing program, the simulated diffraction patterns were gotten in this paper, the results agreed with the anticipated diffraction patterns ; in the paper we also design the computer optical elements that can shape the laser beam into a double circle shape, a lamp shape and so on

    計算機模擬成像結果與預期得到的衍射圖樣相符合;文中還討論了設計參數對成像質量的影響規律。同時，本文還用標量理論設計了把高斯光束整形為雙圓斑形光束的計算機光學元件，文中主要是參考改進的gs （ gerchberg - saxton ）演算法;通過計算機模擬，得到了計算機光學元件表面的相位浮雕圖。
  6. This dissertation is about the rigorous vector analysis and design of subwavelength diffractive microlenes

    本論文圍繞亞波長衍射微透鏡的嚴格矢量分析與設計展開。
  7. The influence of changing design parameters on diffractive microlens is investigated. the effects of changing design focal length and microlens material refractive index on diffractive efficiency and airy diffraction disc radius are presented. the numerical results are discussed by qualitative analysis

    首先研究了設計參數變化對衍射微透鏡的影響，給出了設計焦距和透鏡材料折射率變化對衍射微透鏡衍射效率、愛里斑半徑等的影響，並對分析結果作了定性討論。
  8. The vector - based plane - wave spectrum method ( vpws ) is improved, which can directly obtain the far field diffractive pattern depending on the output near field data in the bor fdtd meshes by use of the deduced formulas in this dissertation

    改進了平面波譜傳播演算法（ vpws ） ，推導出的公式可以由borfdtd計算空間內的近場輸出數據直接計算出遠場的電磁場分佈。
  9. 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

    然後，通過x射線衍射測量了樣品的衍射譜，通過比較不同樣品衍射峰的形狀，了解了不同退火溫度及注入條件下樣品的晶格結構情況。
  10. Laser direct writing system is the key equipment for fabrication of optical diffractive elements, and the defocus detection technique is the important sub - tech in it

    激光直寫機是製作衍射光學元件的關鍵設備，離焦檢測技術是其中的重要單元技術之一。
  11. Fabrication of continuous relief mask for diffractive plane focus lens

    連續型平面衍射聚光透鏡掩模的製作
  12. The process is a purely diffractive process since no quantum numbers exchange between the two colliding particles

    由於兩個碰撞粒子之間沒有量子數的交換，因此該過程是一個單純的繞射過程。
  13. Lin h, li l and zeng l., " in - situ monitoring during ion - beam etching of multilayer dielectric gratings : simulation and experiment ", holography, diffractive optics, and applications ii, spie, 5636, 143 ( 2004 )

    林華，李立峰，曾理江， "利用導波耦合角度實時控制光刻膠光柵掩模的占寬比" ，光學學報， 26 ， 767 ? 772 （ 2006 ）
  14. If it is combined with high quality reduction projecting system, the fabrication of sub - micron diffractive optical elements can be realized completely

    數字微鏡如果結合高質量的高倍精縮投影光學系統，完全可實現亞微米級衍射微光學元件的製作。
  15. Design of diffractive optical elements by step iterative algorithm

    採用分步迭代演算法設計製作衍射光學元件
  16. 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

    所制微光學結構的表面粗糙度在納米量級，衍射相位臺階的高度在亞微米量級並可以根據需求靈活調整，通光孔徑在毫米至厘米量級的范圍內可調。
  17. 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

    通過對10 10 10mm ~ 3塊狀linbo _ 3 : fe晶體中用角度復用技術寫入的8重體光柵的衍射特性分析，證實了光寫入多重體光柵應用於波分復用系統的可行性。
  18. In this paper we designed the relief height of the computer optical elements mainly based on the geometrical theory and the scalar quantity diffractive theory. based on the geometrical theory, we achieved the height of phase relief that can shape the laser beam into 4 square spots, square frame, 1 square spot ; with the computer simulation and drawing program, the diffraction patterns are gotten in this paper, the results agreed with the anticipated diffraction patterns ; in this paper we also discussed the affects to the diffraction patterns by changing some parameters

    本文主要基於幾何理論和標量理論來設計計算機光學元件表面的浮雕高度，文中用幾何理論推導出了把高斯光束整形為四個矩形光斑束，正方框形光束、矩形平頂光斑的計算機光學元件表面的浮雕公式;通過計算機輔助設計，計算得到了計算機光學元件表面上的浮雕高度，設計出了計算機光學元件。
  19. 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

    摘要為了突破長焦物鏡傳統設計中的局限性，從衍射面的相位多項式出發，結合一般透鏡的相位變換式，對折衍混合消像差理論進行了探討。
  20. Instrument technology research center ( itrc ) has devoted to limited and diversified ultra - precision components fabrication for more than 30 years, and established various aspheric optics fabrication units, precision centering machines, and micro lens and diffractive optical element ( doe ) machining devices in the past years

    摘要為配合國內光電產業之蓬勃發展，儀器科技研究中心在既有之傳統光學加工與精密光機元件、微光學元件以及非球面光學元件之加工與檢測技術能量上，於94年度引進五軸超精密鉆石車削輪磨機，以擴展完整的光學工程技術陣容，滿足多樣性之研發需求。
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