self-defocusing 中文意思是什麼

self-defocusing 解釋
自散焦作用
  • self : n （pl selves ）1 自己；自身；本身；【哲學】自我；我。2 本性；本質。3 私利；私心，私慾。4 〈俗〉...
  • defocusing : 發散
  1. 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。
  2. 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。
  3. 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。
  4. 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。
  5. 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。
  6. Secondly, the third order nonlinear optical properties of these compounds are studied under the excitation of ps pulsed laser with the wavelength of 1064nm using z - scan technique, nonlinear refractive indices and nonlinear absorption coefficients are calculated according to the z - scan experiment curves of the compounds. all the three compounds have self defocusing characters and two photon absorptions. lastly, nonlinear refraction and absorption properties of these compounds are studied by z - scan technique under the excitation of ps pulsed laser with the wavelength of 532nm the self defocusing and reverse saturation absorption are found in these compounds

    根據實驗曲線計算了它們在1064nm下的三階非線性折射率和非線性吸收系數，三種化合物都具有自聚焦特性，並且在該波長下，三種化合物均具有雙光子吸收，最後，以皮秒脈沖的532nm為激發波長，採用z掃描方法，研究了三種金屬有機化合物的非線性折射和非線性吸收性質，在該波長下三種化合物仍然表現為自聚焦特性，且其吸收為反飽和吸收。
  7. 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。
  8. 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。
  9. 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。
  10. 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。
  11. 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。
  12. The thesis analyzed the effects, associated with the propagation of laser in plasma channel, such as diffraction, plasma defocusing, the third - order intensity - dependent nonlinearity, the relativistic self - focusing, the focusing and defocusing of the plasma channel, and the absorbtion in the collision plasma and the finite pulse length effect

    文中用哈密頓-雅可比方程方法和源展開方法分別對激光在等離子體隧道中傳輸所涉及的衍射效應、等離子體散焦效應、三階強度非線性、相對論自聚焦、等離子體隧道的聚焦和散焦效應、碰撞等離子體中的吸收效應、有限脈寬效應等等做了基本的闡述。
  13. Self - focusing and self - defocusing have their origin in the intensity dependence of the refractive index of the nonlinear medium. the picture becomes more complicated when two copropagating optical beams affect each other through nonlinear cross - phase modulation

    當兩光束共同在非線性介質中傳輸時，兩光束由於交叉相位調制效應將會相互作用，其物理機制變的比較復雜。
  14. The thermal self - defocusing effect and reverse saturable absorption properties of nickel one - nuclear complexes have been testified. moreover, the thermal self - defocusing effect and reverse saturable absorption properties can lead to optical limiting, which can be used in optical limiting device

    我們通過研究證明鎳單核配合物具有熱自散焦和反飽和吸收效應，並且這兩種效應都會引起光限幅，可據此特性製成光限幅器件。
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