衍射公式 的英文怎麼說

中文拼音 [yǎnshègōngshì]
衍射公式 英文
diffraction formula
  • 衍 : [書面語]Ⅰ動詞（開展; 發揮） spread out; develop; amplifyⅡ形容詞（多餘） redundant; superfluousⅢ名...
  • 射 : Ⅰ動詞1 （用推力或彈力送出） shoot; fire 2 （液體受到壓力迅速擠出） discharge in a jet 3 （放出） ...
  • 公 : Ⅰ形容詞1 （屬于國家或集體的） state owned; collective; public 2 （共同的;大家承認的） common; gen...
  • 式 : 名詞1 （樣式） type; style 2 （格式） pattern; form 3 （儀式; 典禮） ceremony; ritual 4 （自然科...
  1. Meanwhile, based on the magnetic material theory, a complete analysis and summary are carried out on the three crystal structure and technology theory ; especially the ingredient analysis is made on the microscopical morphology and x - ray diffraction and its mixtures existence and relevant metallurgy about the typical second resource such as coldrolling iron and oxide red, steelmaking sludge and feso4 based on the practeal investigation of the pre - burning materials in domestic products plant, especially the analysis on the domestic markets and components, and connecting with reality and material characters in panzhihua iron and steel ( group ) cmpany, we established the product orientation and developing direction in panzhihua iron and steel ( group ) company ; after carrying out the technology reform on the old no. 1 magnetic product plant of enterprise company, making a detailed study on the various conditions for establishing a plant, the feasible research report is formed of 1400 tons ( per year ) feo preburning material and 3000 tons ( per year ) middle and high quality magnetic products ; so a necessary and reliable supports are provided both theoretically and practically for the development of the magnetic industry in panzhihua iron and s teel ( group ) cmpany

    同時，對磁性材料的理論基礎，尖晶石、磁鉛石、石榴石三大晶系結構以及其工工藝理論進行了較為全面的歸納、分析和總結；尤其針對攀鋼產生的二次資源如冷軋鐵紅、煉鋼污泥、硫酸亞鐵等三種典型原料分別作了成分分析、微觀物理形態以及x光衍射分析、其夾雜物的存在形式及相應的金相分析。對國內鐵氧體磁性材料的預燒料及磁件生產廠家的工藝、設備、技術、成本、質量狀況進行了實地的調研，特別是對國內磁性材料的市場及競爭對手進行了詳盡的分析，在此基礎上，結合攀鋼實際及原料特點確立了攀鋼發展磁材產業的產品定位及發展方向；對企業公司原有磁件一廠進行了技術工藝改造，對建廠各項條件進行了詳細的分析，形成了了年產14000噸年鐵氧體預燒料以及3000噸年中高檔磁件產品的可行性研究報告，從理論上和實踐上為攀鋼磁性產業的發展提供了必要的可靠的依據。
  2. The diffraction formula and statistical law of optical fields are used to get the cross - correlation function of intensities of laser speckles of the moved diffuse object

    該方法利用光傳播的菲涅爾衍射公式和光場的統計規律，給出散斑場光強在散射體位移前後的高斯光束相關函數的表達式。
  3. Then, the kirchhoff scalar diffraction theory is used to derive the scatter field of the edo grating and the simulation model is presented

    並利用基爾霍夫標量衍射理論導出了edg光柵散射場的公式，建立了對蝕刻衍射光柵的模擬模型。
  4. A simply and analytical formula of the axial light intensity distribution behind a circular aperture is derived by using the helmhotz - kirchhoff integral theorem and the kirchhoff ' s boundary conditions. it is studied the nonparaxial on - axis intensity distribution throughout the whole space behind a circular aperture. an accurate formula to calculate the fresnel number of circular aperture is presented and the validity of usual fresnel number formula is reexamined. by using the analytical formula and diffraction integral formula, some numerical simulation comparisons are done, and it is shown that the results of the two methods are completely coincident

    用亥姆霍茲-基爾霍夫積分定理和基爾霍夫邊界條件，推導出了平面波經小圓孔非傍軸衍射時軸上強度的簡單解析表達式，研究了平面波經小圓孔后整個衍射空間非傍軸的軸上光強分佈.給出了計算圓孔菲涅爾數的精確公式，重新檢查了通常的菲涅爾數公式的有效性.數值計算顯示，應用解析表達式所得的結果與應用衍射積分公式所得的結果完全一致
  5. Theory and experiments of bulk - wave acousto - electro - optical ( aeo ) device, involving one - dimension and multi - dimension, are systematically studied. the thesis includes the following contents : coupled - wave equation theory of aeo interaction, determination of the optimum operating mode of aeo device, geometrical relationships of the anisotropic acousto - optic interaction, design and experiment of the aeo device. finally, the optimum design of ao device with beam steering theory is also studied

    論文主要研究內容包括:一維和多維聲電光效應的耦合波方程及其衍射效率計算公式的建立、一維和多維聲電光器件最佳工作模式的選擇、聲電光晶體反常聲光互作用幾何關系的計算、 ln一維反常聲電光器件和kdp二維反常聲電光器件的設計製作以及實驗測試、正常與反常超聲跟蹤聲光偏轉器的優化設計。
  6. In order to analyze the effect of aberration of amplitude and phase of laser beam on centroid position of focal spot, based on the fraunhofer formula for light wave scaler diffraction theory, according to the definition of first order moment centroid position, the general expression of focal spot centroid position directly depending on the complex amplitude of near field is derived

    摘要為分析振幅和相位發生畸變情況下光束焦斑質心位置所受的影響，以光波標量衍射理論中的夫瑯和費衍射公式為基礎，根據光斑強度分佈一階矩質心位置的定義，推導了直接依賴于光束近場復振幅分佈的焦斑質心位置的一般表達式。
  7. The hybrid method can simulate accurately both the imaging and polarization - dependent diffraction characteristics of a concave grating. to meet the growing need for flattened passband in a practical wdmsystem, three design methods, namely, the tapered output waveguide structure with air - slots, the three - focal - point method and the analytical method of spatial phase modulation, are introduced to achieve a passband - flattened diffraction grating device

    針對實際光通信應用中對通帶帶寬的需求，本文提出了「結合空氣槽的漸變輸出波導結構方法」 、 「三焦點方法」及「顯式公式空間相位調製法」三種使平面集成型衍射光柵波分復用器件獲得平頂型頻譜響應的優化設計方法。
  8. The condition, under which the paraxial approximation is valid, is given. 4. starting from the rayleigh diffraction integral, the propagation equation of ultrashort pulsed beams in dispersive media has been derived without making the paraxial approximation and slowly varying envelope approximation ( svea ), which allows for relatively large angles

    從瑞利衍射積分公式出發，未作慢變振幅近似和近軸近似的條件下，導出了等衍射長度超短脈沖高斯光束在色散介質中非近軸傳輸方程，可用來處理色散介質較大角度的傳輸。
  9. In specific, the formulation of the rcwa for 2 - d and 3 - d metallic gratings and the formulation of the fdtd method for dispersive media are presented. a novel hybrid diffraction method, which is based on the kirchhoff - huygens diffraction formula and the rcwa, is proposed to simulate the working of a planar integrated diffraction grating

    針對在光通信以及光盤存儲領域的具體應用，著重對二維及三維金屬光柵衍射問題的嚴格耦合波分析以及色散媒質散射問題的時域有限差分方法進行了公式推導。
  10. Optical vector - matrix multiplier is a kind of integrated optical device and it is necessary to study the effect of the diffraction. based on the scalar diffraction theory, the transformation of gaussian beam by each component of the vmm is calculated by collins formula, and the distributions on the slm and ccd are investigated

    本文在標量衍射理論體系下，應用柯林斯（ collins ）公式對光學矢量-矩陣乘法器的光場分佈進行模擬計算，得到slm和ccd接收面上的光場分布圖。
  11. Based on the fresnel diffraction integral, the analytical expression for the field distribution of converging spherical waves passing through an annular aperture is derived and some special cases are discussed

    摘要基於菲涅耳衍射積分公式，推導出了會聚球面波通過環形光闌后場分佈的解析公式，並討論了一些特殊情況。
  12. Firstly, in the paper a family of integral solution representing ultrashort pulsed beam propagating in free space have been studied by using the co - moving frame coordinates and the fourier transformation for time variable in terms of well - known paraxial approximation. and the pulsed gaussian - like beam solution can be obtained as a especial solution of the integral solution, where including the pulsed gaussian beam

    首先利用傅立葉變換和惠更斯-菲涅爾衍射積分公式，我們給出了傍軸標量場近似下超短脈沖光束傳輸的基本積分解，並進一步得到了用卷積形式表示的脈沖類gauss光束解（ pulsedgaussian - likebeam ）的普遍形式解。
  13. Abstract : the second scalar analysis method to calculate the di ffraction efficiency of grating was described in detail, a simple effective approximation formula to calculate the diffraction efficiency of grating was educed. diffraction efficiencies were given and compared with scalar results, rigorous vector results

    文摘:詳細介紹了計算光柵衍射效率的二階標量近似法，推導出一種簡單有效的計算光柵衍射效率的近似公式.給出了利用近似公式對幾種情況下光柵衍射效率的計算結果，並與普通標量法、嚴格矢量法的計算結果進行了比較
  14. By using the method of burning, we fabricated the ceramic powder of al2o3, and discussed the effect of mole percentage of metal ions and urea on forming phases of al2o3. we calculated the x - ray powder diffraction by scherrer formula, and we thought that the ceramic powder reaches nano order

    採用燃燒法制備了al _ 2o _ 3陶瓷粉末，討論了金屬離子和尿素的摩爾比對al _ 2o _ 3成相的影響；對其x射線粉末衍射數據用scherrer公式計算得出所得al _ 2o _ 3陶瓷粉末已達到納米量級。
  15. The numerical reconstruction algorithm of digitally sampled holograms, deduced from the scalar quantity diffraction theory, is investigated. the serious recording limitations due to the finite size and resolution of ccd are detailed discussed

    根據標量衍射理論，討論了利用菲涅耳衍射公式對數字無透鏡傅里葉變換全息術的數值實現，並進一步討論了ccd參數對數字全息圖記錄的限制條件。
  16. An explanation in detail for several formulas of kirchhoff ' s diffraction theory are introduced, some applications of these formulas are introduced as well

    摘要對基爾霍夫衍射理論幾個積分公式的導出與使用給予詳細說明與解釋，並列舉了它們的部分應用。
  17. The tuning curve of type - i phase matching of bbo opo are measured with accuracy ; the maximum conversation in total of the system is about 31 % at 615. 6 nm, and it is fitted well with the gtp formula ; in the end we compared the output linewidth and unstable cavity far field beam qua lity of the bbo opo under the condition of type - i phase matching and type - ii phase matching, it is proved that we can obtain the parametric output of linewidth less than 0. 3 nm and the beam divergence angle approaching diffraction limits by take the advantages of type - ii phase matching and unstable cavity designs

    測量了該系統的轉換效率最大為31 ，並能與理論公式極好地吻合，最後比較了在類相位匹配條件下和類相位匹配條件下的bbo - opo的輸出線寬，以及非穩腔的遠場光束質量，實驗結果表明，利用類相位匹配以及非摘要穩腔設計可以獲得線寬小於0 3nlm 、光束發散角接近衍射極限的參量光輸出。
  18. For multi - dimension acousto - electro - optical effect, the momentum mismatch is solely replaced by mismatch caused by electric field. based on this, one - dimension acousto - electro - optical coupled wave equation and multi - dimension acousto - electro - optical coupled wave equation are founded and their diffractive efficiency formulas are also deduced respectively

    通過對聲光互作用耦合波方程中的動量失配進行修正，分別得到了一維反常聲電光布拉格衍射的耦合波方程以及多維聲電光效應耦合波方程的表達式，並進一步得到了相應的衍射效率的計算公式。
  19. Kirchhoff ' s diffration theory

    基爾霍夫衍射公式
  20. A three - dimensional hybrid vectorial method, which is based on the fdtd algorithm and the vectorial diffraction formulation, is introduced to analyze the read out of an optical disk

    結合矢量衍射公式和時域有限差分方法，本文給出了一種精確模擬光盤存儲系統中的光學信號讀取的三維混合矢量方法。
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