最小折光率 的英文怎麼說

中文拼音 [zuìxiǎozhéguānglǜ]
最小折光率 英文
least index of refraction
  • 最 : 副詞（表示某種屬性超過所有同類的人或事物） most; best; worst; first; very; least; above all; -est
  • 小 : Ⅰ形容詞1 （體積、面積、數量、強度等不大） small; little; petty; minor 2 （年紀小的; 年幼的） youn...
  • 折 : 折動詞[口語]1. （翻轉） roll over; turn over 2. （倒過來倒過去） pour back and forth between two containers
  • 光 : Ⅰ名詞1 （照耀在物體上、使人能看見物體的一種物質） light; ray 2 （景物） scenery 3 （光彩; 榮譽） ...
  • 率 : 率名詞（比值） rate; ratio; proportion
  1. The refractive indices at 12 wave lengths in the visible region were measured with the minimum deviation method, showing that kabo is a negative uniaxial optical crystal with moderate birefringence. the measurement of nonlinear optical coefficient dn = 0. 45pm / v

    用最小偏離法測試了可見光區十二個波段處的晶體折射率，結果表明kabo晶體屬負單軸晶，具有適中的雙折射率。晶體的非線性光學性質測試顯示，該晶體非線性光學系數為d _ （ 11 ） = 0 . 45pm / v ，可實現相位匹配。
  2. A monte carlo algorithm was presented to model the relation between the scattering phenomenon, depolarization changes and sea water depth, it is discovered that the radius of scattering point and the degree of depolarization increase with increasing of the sea water depth. at last, a optical engineering software ( lighttools ) is introduced to simulate optical scattering in the deep sea water, and studys the corelation between scattering and relative refractive index, particle density and particle size in the sea water. the experiment results show that the intensity of scattering will increase evidently with the increasing of particle size, particle density and relative refractive index. the methods and results in the article provide the basic theory and experiment validation for improving performance of communication, detection and imaging under sea water

    本文以球形粒子的mie散射理論、 stokes矢量法以及mueller矩陣來研究海水的散射特性和散射中的退偏振度變化;通過montecarlo方法模擬藍綠激光在海水傳輸過程中的散射現象以及散射中的退偏度變化與海水深度的關系，發現隨著海水深度的增加，散射后的光斑半徑、退偏振度將逐漸增大。最後通過光學工程軟體（ lighttools ）對海水中的散射進行模擬實驗，研究散射與海水中粒子密度、粒子大小和相對折射率的關系。實驗結果表明，隨著粒子半徑、粒子密度和相對折射率的增加，散射的強度將顯著增加。
  3. The main work can be summed up as follows : firstly, we studied the thermal - field properties of vcsels, and analyzed the influences of current spreading, material parameters and operating conditions on the temperature distributions. secondly, we began with the electrode voltage and calculated the equipotential s distributions, compared the distributions of voltages and current densities in different depths of vcsels, and then studied the influences of the oxide - confining region with different position or thickness, and the different sizes of the gain - guided aperture and emitting window on the distributions of the injected current density, carrier concentration and temperature in the active region. thirdly, we realized the coupling of electricity, optical and thermal - fields, worked out the threshold voltage, calculated the distributions of the injected current density, carrier concentration and temperature under different offset voltages, and analyzed the impacts of temperature profile and carrier density on the refractive index, fermi levels and optical - field

    具體工作可以概括如下：首先，研究了vcsel的熱場特性，分析了電流擴展，材料參數和工作條件對于溫度分佈的影響；其次，從電極電壓入手，計算出激光器中的等勢線分佈，並對不同深度處的電壓和電流分佈進行比較，研究了高阻區的不同位置和不同厚度、限制層和出射窗口半徑的大小對電流密度、載流子濃度和溫度分佈的影響；再次，實現了電、光、熱耦合，求出了閾值電壓，計算了不同偏置電壓下的電流密度分佈、載流子濃度分佈和熱場分佈，分析了溫度和載流子濃度變化對折射率、費米能級和光場的影響；最後，給出了考慮n - dbr和雙氧化限制層時激光器中的等勢線分佈，分析了n - dbr和雙氧化限制層對vcsel電流密度、載流子濃度、溫度和光場分佈的影響。
  4. An attempt is made to use the filled function as the modified function approach to apply global optimization to optical thin film problems. it is proved successful when applied to problems such as antireflection coatings and beam spliters. meanwhile, it is also found that when the number of layers is fixed those local minima with less total optical thickness appear to be better. in the realization. needle method are made to explore the impact of local optimization methods used, parameter of these methods, the starting design, the search accuracy of function and the methods of thickness growth

    從理論分析來看，由於光學薄膜的特性是由在入射介質那一側的等效導納所確定的， needle方法把等效導納作為狀態變量，把每一層的折射率作為控制變量，運用最優控制的原理計算出在薄膜內部每一個厚度對應的點上折射率改變所引起的評價函數的改變，由此選取改變折射率后評價函數變化最大（評價函數變小）的那一點進行插入。
  5. This paper also discussed the factors that influenced the diffraction efficiency of scattering object, and proposed the amount of refraction index modulation was very small, the diffraction efficiency was mainly determined by chemical treatment

    並指出體積光柵效應對透射全息衍射效率是有貢獻的，討論了影響散射物體全息衍射效率的問題，最後指出在一般情況下，調制折射率是一個很小的量，化學處理對它起著關鍵性的作用。
  6. Colourless optical glass test methods - least deviation angular test method for refractive index in the ultraviolet and infrared wave band

    無色光學玻璃測試方法紫外紅外折射率測試方法最小偏向角法
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