線性極化 的英文怎麼說
中文拼音 [xiànxìngjíhuà]
線性極化
英文
l linearly polarized- 線 : 名詞1 (用絲、棉、金屬等製成的細長的東西) thread; string; wire 2 [數學] (一個點任意移動所構成的...
- 性 : Ⅰ名詞1 (性格) nature; character; disposition 2 (性能; 性質) property; quality 3 (性別) sex ...
- 極 : i 名詞1 (頂點; 盡頭) the utmost point; extreme 2 (地球的南北兩端; 磁體的兩端; 電源或電器上電流...
- 線性 : [數學] [物理學] linear; linearity線性代數 linear algebra; 線性方程 linear equation; 線性規劃 line...
- 極化 : [物理學] polarization; overpotential; overtension; polarity極化器 polarizer; 極化強度 intensity o...
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The influence of shape factor of granular on nonlinear susceptibility in random nonlinear composites
非線性復合材料中組份顆粒形狀因子對非線性極化率的影響Quantum interference occurs in a three - level a system with near - degenerate dipole allowed transitions, which are coupled to the same linearly polarized incoherent field
如,當a型的兩個躍遷與一個線性極化的非相干場進行耦合時,非相干泵浦產生量子干涉。Corrosion action slope cable used in cable - stayed bridge in different corrosion medium such as synthesis sea water, solution nacl and simulation acid rain are studied by electrochemical method, for example, linear polarization, tafel extrapolation and ac impedance method
對此,本論文以人造海水、 nacl溶液、模擬酸雨作為腐蝕介質,針對不同類型的鋼絞線,採用線性極化法、 tafel外推法和交流阻抗法等電化學方法研究斜拉橋拉索結構中鋼絞線在不同介質中的腐蝕行為。Based on practical application conditions, half - cell potential method, concrete resistance measurement, linear polarization resistance method and etc. 3
根據現場的實際應用情況,最常用的方法有半電池電位法、混凝土電阻率檢測法、直流線性極化電阻法、交流阻抗法以及地質雷達法等。At present, people usually use birefrigence and quasi - phase - matching methods to achieve higher effiency in the process of conversion. a significant advantage of quasi - phase - matching method is that the interaction is occurred through the largest element of the x ( 2 ) tensor ; the period of optical superlattice can be designed randomly, and any interaction can be matched without walk - off angle ; they are fitted to be used in frequency conversion of lower power especially. the quasi - phase - matching method has some advantages over birefrigence method, improving the efficiency of frequency conversion ; the range of frequency conversion covers its whole transperant wavelength
由於準相位匹配技術有其獨特的優勢,可以利用非線性光學晶體的最大二階極化張量,如ppln 、 pplt 、 ppktp用的非線性極化張量都是d _ ( 33 ) ,其有效非線性系數高出普通非線性光學介質(如bbo 、 lbo 、 ktp )一個數量級,而且可以人為靈活設計調制周期,通過周期設計其頻率變換范圍可以覆蓋準相位匹配介質的整個透明波段,選擇無走離效應,解決了常規pm難以解決的問題,拓寬了非線性晶體的應用范圍,極大地提高了頻率轉換效率,已成為非線性光學材料和固體激光器的研究熱點之一。In the second chapter, the nonlinear optical properties are described from both macroscopic and microscopic views, at the same time, giving the definitions of the linear and nonlinear polarizabilities. then, the explicit expressions of the linear and nonlinear polarizabilities are obtained by using quantum mechanical perturbation theory and density matrix formalism, respectively
第二章非線性光學性質,首先分別從宏觀和微觀兩個角度討論了極化強度和電偶極矩與外加光電場強度之間的關系,同時給出了線性極化率和非線性超極化率的定義,然後分別運用含時微擾理論和密度矩陣理論求解了分子體系的線性極化率和非線性超極化率。This thesis focuses the research on the theory and application of the electro - optic effect in the quasi - phase - matching ( qpm ) nonlinear optics based on periodically poled lithium niobate ( ppln )
本文旨在對電光效應基於周期性極化鈮酸鋰( ppln )的準位相匹配( qpm )非線性光學中的理論及其應用進行研究。Calculation of high - order nonlinear polarizability in single modle fiber
高階非線性極化率的遞推公式The absolute value of x ( 3 ) at 1064nm and 532nm were on the order of 10 - 13esu and 10 - 14esu respectively
三階非線性極化率的絕對值在io64run和532lun激光波長下處分別是10一』 3esu和10一』 4 。 su 。And takes the method of passing electricity in wet environment to carry on the reinforcement corrosion acceleration to the reinforced concrete, and uses the linear polarization method to carry on the test to the polarized resistance and corrosion current density of the steel bar flowed through by electricity at different time, analyzing the rule of the change of the reinforcement corrosion parameters, and test the chloride ion diffusion coefficient to evaluate the impermeability of the concrete
本文以不同水灰比、不同含氣量、不同引氣劑的鋼筋混凝土為研究對象,採用濕通電法對鋼筋混凝土進行加速銹蝕,同時採用線性極化法對不同通電時間的極化電阻和腐蝕電流密度進行測試,分析銹蝕參數的變化規律,並通過測定cl -擴散系數來評價其抗滲性。The second - order nonlinear susceptibility in semiconductor asymmetric step quantum well structure
半導體非對稱階梯量子阱結構的二階非線性極化率Hyperpolarizability of chiral molecule was derived from the classical model of the coupled two - vibrator. in a given condition, the expression of cubic hyperpolarizability was calculated from an isotropic chiral medium, it is also derived the macroscopic third - order nonlinear susceptibility according to the microscopic cubic hyperpolarizability
本文從手性分子的耦合雙振子經典模型出發,推導出手性分子的超極化率.在特定情況下,給出了三階非線性極化率的表達式.基於該模型討論了手性介質分子各向同性分佈的宏觀非線性極化率This dissertation studies mainly theories and according numerical implementation of a class of dual algorithms for nonlinear optimization problems, including unconstrained minimax problems and constrained nonlinear programming problems
本文主要研究非線性優化中的一類對偶演算法,包括無約束極大極小問題的對偶演算法和約束非線性規劃問題的一類對偶演算法的理論與相應的數值實現。Their molecule structures have strong electron conjugated systems and electron transition between organic ligands and center metal atoms, which result an enhancement of their nonlinear polarizabilities
它的結構中含有較強的電子共軛體系,並且有機配體與中心原子間的電子轉移,大大提高了其非線性極化率。The ferroelectric materials for their excellent dielectric, piezoelectric, ferroelectric, pyroelectric, electro - opticial, phonon - optic and nonlinear polarization properties have been widely applied in many fields especially in microwave tunable devices, such as phase shifter in phased array antenna, resonantor and filter etc. as far as microwave tunable dielectric materials, barium strontium titanate ( bst ) and its doped series have been investigated intensively, which have about 50 % tunability
鐵電材料具有優良的介電、壓電、鐵電、熱釋電、電光、聲光及非線性極化等特性,在多種領域有著廣泛的用途。利用其非線性極化特性能制備微波可調元器件,如相控陣天線上的移相器,諧振器,濾波器等。Unified limit analysis of thick wall cylinder of linear strengthened material
線性強化材料厚壁圓筒的統一極限分析According to m. sheik - bahae ' s theory the sample has a negative nonlinear refractive index under 1064 nm pulse laser. it was determined as 6. 5 x 10 - 21 m2 / w. meanwhile, the minimum value of normalized transmittance of z - scan curves without aperture are found at the focus, and indicate that nickel one - nuclear complexes have nonlinear absorption properties
同時開孔z掃描曲線在焦點處出現透過率的最小值,表明它具有非線性吸收特性,其非線性折射率為6 . 5 、 10一, , mz / w ;我們還利用歸一化透過率曲線算得了這兩種鎳單核配合物的三階非線性極化率的實部。The models for nonlinear polarization of chiral molecules
手性分子的非線性極化模型Specification for tractive armature direct current neutral - polar line relays for railway signalling
鐵路信號用牽引電樞直流中性極化線路繼電器規范Study of linear polarization technique in geothermal system for corrosion ratio
線性極化技術測試地熱腐蝕速率的試驗研究分享友人