散焦 的英文怎麼說

中文拼音 [sǎnjiāo]
散焦 英文
astigmatism
  • 散 : 散動詞1. （由聚集而分離） break up; disperse 2. （散布） distribute; disseminate; give out 3. （排除） dispel; let out
  • 焦 : Ⅰ形容詞1 （物體受熱失去水分 呈現黃黑色並發硬、發脆） burnt; scorched; charred 2 （著急） worried;...
  1. Influence of multipole deflection field on electron beam defocus

    多極偏轉場對電子束散焦的影響分析
  2. It ' s well known that both thermal self - defocusing effect and reverse saturable absorption can lead to optical limiting

    眾所周知，熱自散焦效應和反飽和吸收效應都能導致光限幅。
  3. Second, it introduces an additive phase component which induces defocus in cross - range

    二是引入了附加的相位分量，在方位向造成散焦。
  4. For example, if the diffraction pattern is defocused by under - focusing the diffraction lens then the image of the specimen can be seen in both the direct and diffracted beams in the diffraction pattern and, since under - focusing the diffraction lens images a plane above the diffraction pattern, these images will not be inverted with respect to the diffraction pattern

    比如，如果衍射模型是通過衍射透鏡下焦散焦的，樣本的映像就能在衍射模型中直接的衍射束中看到，但是由於衍射透鏡下焦在衍射模型之上平面成像，這些映像就不會對應衍射模型倒置。
  5. In fact, the images acquired are often blurred by the out - of - focusing, which sets the obstacle for micro - crack identification, farther leads to false identification

    但在實際應用中，系統採集的圖像常出現散焦模糊現象，這給裂紋識別增加了干擾，甚至導致誤判。
  6. Chapter 2 : characteristics of propagation of ultra - intense laser beam in a partially stripped preformed plasma channel is discussed, in which the relativistic self - focusing effects, together with the perturbed plasma density, is discussed

    第二章：本章闡述了超強激光光束在拋物型部分電離的預等離子體（聚焦和散焦）隧道中的傳輸特性。研究了相對論自聚焦效應和等離子體波引起的密度擾動對傳輸的影響。
  7. From maxwell equations the refractive index equation and hamilton - jacobi equation, which describe the evolution of the electric field, are derived including the effects of the diffraction, the third - order intensity - dependent nonlinearity, plasma defocusing, the focusing and defocusing of the plasma channel, and the relativistic self - focusing

    從maxwell方程出發我們得到了兩個包含衍射、三階強度非線性、等離子體散焦、等離子體隧道聚焦和散焦以及相對論自聚焦等效應在內的激光場演化方程，即折射率方程和哈密頓-雅可比方程。
  8. In this paper, dual - beam transmission problem that possess to a certainty included angle and gains the nonlinear schrdinger coupled equation ( nnlse ) in self - defocusing media is discussed

    摘要自散焦介質中雙光束斜入射耦合能發生光束偏轉，通過數值模擬發現在非線性折射率不是均勻分佈時光束偏轉能降低抽運光功率並且偏轉角度不減小，在相同的功率條件下，能產生更大的偏轉。
  9. Static uniform defocusing is a common kind of blurring in static state, this paper gives method of judging whether blurring image is uniform defocusing, the method compares picture of real gray with picture of ideal energy, it is clarity and intuitionist

    靜態均勻散焦是在靜態情況下的一種常見模糊，本文給出了判斷模糊圖像是否是均勻散焦的方法，通過對比實際的灰度圖和理想能量圖來判斷，直觀明了。
  10. Semi - classical limit of cubic defocusing nonlinear chrodinger system

    非線性散焦立方薛定諤方程的半古典極限
  11. How a dark pump beam induces a bright probe beam to focus in two - and three - dimensional self - defocusing media is discussed in chapter 5

    第五章，討論了二維和三維自散焦介質中具有暗光束分佈的泵浦光對基模高斯信號光的聚焦作用。
  12. Secondly, it is numerically simulated how a dark pump beam induces a bright probe beam ( with the gaussian profile spatially ) to focus in two - and three - dimensional self - defocusing media, and the main factors that have influence on the focusing of the probe beam are also analyzed

    二、研究了具有暗光束分佈的泵浦光與基模高斯型信號光在二維和三維自散焦介質中同向共同傳輸時的誘導聚焦現象，分析了影響聚焦過程的主要因素。
  13. According to the concept and basic form of svpsf, the cavity and duct scattering is examined, and a method is developed to remove the duct - induce dispersion effect

    推演了典型非點散射結構?腔體結構的二維svpdf的具體形式，得到消除其散焦效應的積分變換域濾波方法。
  14. In this thesis, induced focusing in self - defocusing media is explored thoroughly by numerical method

    本文用數值方法對自散焦介質中的光束誘導聚焦現象進行了系統的研究。
  15. The historical review is given about the research on the induced focusing of optical beams in self - defocusing nonlinear media

    在此基礎上對三維自散焦介質中由交叉相位調制效應誘導的光束聚焦進行系統研究。
  16. In this, we focus on the phenomena of the induced focusing when two beams propagation in self - defocusing nonlinear media in an off - axis geometry

    本論文旨在研究三維自散焦介質中由交叉相位調制效應誘導的光束聚焦。
  17. We study the evolution of a probe beam profile in the influence of a pump beam in the off - axis geometry and obtain the typical process of probe focusing

    詳細研究了泵浦光束輸入振幅對信號光束波形的影響，得到了三維自散焦介質中初始高斯信號光束聚焦時波形的典型演化過程。
  18. It has been theoretically and experimentally demonstrated that in self - defocusing media, a weak beam ( the probe ) can be induced to focus by a strong beam ( the pump ) that propagates simultaneously with it

    理論與實驗結果均表明，在自散焦介質中，強泵浦光可誘導與其共同傳輸的弱信號光聚焦。
  19. In chapter 4, it is simulated that a probe beam and a pump beam counter - propagate in a two - dimensional self - defocusing medium and thorough analyses are made to the induced focusing in this configuration

    第四章，用分步傅立葉方法模擬雙光束在二維自散焦介質中的對向共同傳輸過程，對出現的誘導聚焦現象進行了系統的分析。
  20. In chapter 2, the basic theory on the simultaneous propagation of two optical beam in nonlinear media is given briefly, and a couple of parameters for describing the focusing of a beam are introduced as well

    全文共六章，各章內容如下：第一章，介紹了自散焦介質中的光束誘導聚焦現象及其研究進展。第二章，簡述了雙光束傳輸的基本理論，並且引進了描述光束聚焦過程的幾個參量。
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