色散系數 的英文怎麼說
中文拼音 [shǎisǎnxìshǔ]
色散系數
英文
abbe number-
The key components in laser gyro is he - ne ring laser, and the reciprocal action theory between light and medium is the base in studying the ring laser, use the lamb half classical theory, and on the base of density matrix theory, the optical brounch equation was established, which described the movement of amplifying medium atom in the ring syntonic cavity, and according to the medium polarize theory the self consistent equations was deduced, which describe the light intensity and phasic of the counter - propagating wave. on the basis of this equations, adopted the simulation software matlab and virtual instrument programming language labwindows / cvi, we can do some simulated experiments in study the phenomenas such as amplify and dispersive characteristic of medium, mode pushing effection, burned hole effection and pattern competition, lock - in of frequency and the characteristic of light intensity and phasic of the counter - propagating wave in laser gyro
激光陀螺的核心部件為he - ne環形激光器,而掌握光與介質的相互作用理論是研究激光器的關鍵,採用拉姆半經典理論為主,在密度矩陣理論的基礎上,推導環形諧振腔中描述he - ne氣體增益介質原子運動的光學布洛赫方程,運用介質極化理論得出描述激光陀螺反向行波的光強、位相所滿足的自洽場方程組,在此基礎上,運用matlab模擬軟體和虛擬儀器編程語言labwindows / cvi ,對激光陀螺中的介質增益色散特性、頻率牽引效應、燒孔效應及模競爭、閉鎖效應及環激光的光強和相位特性進行模擬試驗研究,並且運用全量子理論,對激光工作原理進行分析,得出二能級系統單模輻射場的光子數密度分佈,得出激光場的光子統計分佈,模擬激光場的動態建立過程。In this paper, high - order accurate weighted essentially non - oscillatory ( weno ) schemes are investigated and their applications in hyperbolic conservation laws are discussed. based on this, a new weno difference scheme which based on dispersion - relation - preserving relation is developed, and representative test cases with this scheme for computational aeroacoustics ( caa ) problems has been implemented and compared in order to test capability of wave capturing ; in addition, weno schemes generally do not converge at high order in the presence of contact discontinuity of euler equations, so a conservative front tracking technique coupling weno schemes and level set method to simulate the translating density profile is presented here, and numerical simulation with this technique for representative test case has been implemented and results show the desired accuracy
本文研究了高階精度加權基本無振蕩( weno )格式及其在雙曲守恆律方程中的應用,在此基礎上作了兩個方面的工作:一是針對高頻聲波問題構造出一種基於保色散關系( drp )的weno有限差分格式,並對計算氣動聲學( caa )問題的代表性算例進行了大量數值實驗,比較了該格式捕捉波數的能力;另外,針對高階weno格式在處理euler方程的接觸間斷時精度有所降低的問題,研究了利用界面追蹤技術levelset方法和高階激波捕捉weno格式相結合的一種守恆追蹤方法,並且給出有代表性的密度滑移面問題的算例,得到一致高階精度的數值模擬結果。The dispersion equation of full relativistic longitudinal plasmon was numerically evaluated, and the dispersion curve and simulated dispersion relationship for full relativistic temperature were given
摘要對完全相對論性縱「等離激元」的色散方程進行數值計算,得到完全相對論性溫度下的色散曲線和擬合色散關系。The tm mode dispersion equation of the coaxial bwo in the infinite guiding - magnetic field is derived and solved numerically. the dispersion curve, operating frequency, and the growth rate are obtained
採用線性理論推導了無窮大引導磁場下的同軸tm模式色散關系式,並編程數值求解了一定條件下的色散曲線、時間增長率、空間增長率。The dispersion equation represented by the plasma dispersion function is numerically evaluated, the dispersion relationship for nonrelativistic longitudinal oscillation is derived from the kinetic plasma equations
摘要從等離了體動力論方程出發,通過對由原色散函數表示的色散方程進行數值計算來研究非相對論性等離子體縱振蕩的色散關系。The experiments showed that, as compared to the conventional dyeing, the diffusion coefficients increased more with raising the bath voltage and temperature, indicating the dye uptake rate could be improved with electro - chemical dyeing
實驗表明:當槽電壓和溫度增加時,擴散系數均比常規染色增加,說明電化學染色可以增加染料的上染速率。As a high - power twt, we consider the relativistic effect of the solid beam. the numerical results are given in terms of the small signal gain curve and slow - wave ration curve
作為大功率的行波管,我們考慮了電子注的相對論效應,數值求解「熱」色散方程,得到脊加載盤荷波導幾何參數和電子注參量與小信號增益的關系。For the first time, the coaxial ridge - disk - loaded cylindrical waveguide as sws is presented. its dispersion equation and the expression of coupling impedance are given by application of the field matching method. a series of numerical results show that the influence of structure dimensions on the dispersion characteristics and interaction impendance
三、創造性地提出脊加載同軸膜片圓波導慢波結構,並對其採用嚴格的場匹配法,詳細推導了色散方程和耦合阻抗表達式,並得到一系列有關系統結構參量與色散和耦合阻抗之關系的數值模擬結果。We have calculated and plotted the curves of the refractive index, group velocity index, lowest - order and second - order dispersion indexes as a function of wavelength. the lowest - order and higher - order dispersion - induced broadening and deforming of light pulses is analyzed for various pulse shapes, such as gaussian, super - gaussian and hyperbolic secant pulses
給出了折射率、群速指數、低階和二階色散系數隨波長變化的關系曲線,研究了高斯脈沖、超高斯脈沖和雙曲正割脈沖等超短脈沖在clbo晶體中傳播時,由於低階色散和高階色散引起的脈沖展寬和形變。We study the time evolution law of the atomic response in an open - type inversionless lasing system when the probe or driving field is off - resonance, and compare the law with that obtained when the probe and driving fields are resonant. we find that the detuning has considerable effects on the time evolution law : when the probe or driving fields is off - resonance, the dispersive responses for the probe and driving fields are no longer 0 and the two - photon coherence is no longer a pure real ; the variation of the probe detuning can make the time evolution law of the population distributions and the gain ( absorbtion ) of the driving field changing obviously ; with detuning increasing, the time evolution behavior of the gain ( absorbtion ), dispersion of the probe field and the two - photon coherence will gradually diviate from the evolution law of the standard damped oscillator ; with the driving detuning increasing, the oscillating time of the dispersion of the driving field becomes longer, the amplitude and the stationary value increase
研究了探測場或驅動場失諧情況下開放的型無粒子數反轉激光系統中原子響應的時間演化規律,並與探測場和驅動場都共振時的演化規律進行了比較.我們發現失諧對時間演化規律有顯著的影響;當驅動場或探測場失諧時,原子對探測場和驅動場色散的響應不再為零,雙光子相干不再是純實量;探測場失諧的變化將使粒子布居和驅動場增益(吸收)的時間演化規律明顯改變;隨著失諧的增大,探測場增益(吸收) 、色散和雙光子相干隨時間的演化行為逐漸偏離標準阻尼振子的演化規律;驅動場色散驅動場失諧量的增加而振蕩時間變長,振幅和穩定值變大Sellmeier coefficients for the refractive indices of calcite at crystal different temperatures
冰洲石晶體色散方程解析研究及折射率溫度系數表達式Colourless optical glass test methods - refractive index and coefficient of dispersion
折射率和色散系數測試方法Finally, the chromatic dispersive characteristics of holographic lens and refractive lens are compared, and the effective chromatic coefficient of holographic lens is given
最後,對全息透鏡和折射透鏡的色散特性進行了比較,得到衍射光學元件的等效色散系數。We presents a detailed studied of the linewidth of parametric light in clbo - opo caused by the linewidth of pumping beam, off axis phase matching, divergence angle of pumping, time above threshold, high gain coefficient of nlo crystal, fluctuate of cavitylength, spontaneous radiation, according to the momentum and energy conversion laws, and the sellmeier equations of the clbo, we calculated curves of the type - i and type - ii compared with the bbo ' s
根據能量動量守恆關系和clbo的色散方程,詳細分析了由於泵浦光的線寬、泵浦光偏軸泵浦、泵浦光的發散角、泵浦光功率超過參量光振蕩閾值一定倍數、高增益系數、有效腔長波動以及自發輻射引起的參量光線寬,並得到了與bbo晶體在類、類相位匹配下比較的理論曲線。Expressions in three kinds of perfectly matched layer ( pml ) absorbing boundary conditions is also given. second, the numerical theories of the auxiliary fields fdtd method is studied, including the stability of the differential equations and the numerical dispersive relationship. the stability of two kinds of differential formulations and three kinds of pml is compared, using a straight method depending on the pmax - t graph
更進一步,研究了輔助場fdtd方法的數值理論,對其微分方程、差代方程的穩定性進行了分析,比較了有耗媒質中的兩種差分格式和三種理想匹配層中的差分格式的穩定性,提出了一種通過p _ ( max ) - t曲線判定穩定性並求出穩定性條件的直觀方法,並導出了該方法的色散關系式。The integrands in the dispersion equation are not integrable in general, so we used the asymptotic expansion solution to analyze the behavior of the dispersion relation at the singularity and mapped the dispersion relation curves approximately the system composed of collisionless particles which obey maxwellian distribution or all kinds of degenerate distribution, even in their mixture system, their dispersion relation are analogous
一般來說,色散方程中的被積函數都是難以求積的,本文是用函數逼近法分析色散方程在奇點處的行為,並大致劃出色散關系曲線。由無碰撞粒子組成的系統,不管初始分佈是maxwell分佈還是各種簡並分佈,甚至是這些分佈的混合體,色散關系都是相似的。Meaning of ions diffusion coefficient in sapphire diffusion heat treatment
離子擴散系數在藍寶石擴散熱處理改色中的作用In chapter 4, we study nonlinear theory of the open v - type system with two - color incoherent pump. in this chapter, we discuss the conditions for the onset of lwi and the stability of the system in the limit of strong driving field, and the effect of incoherent pump rate rt on the gain, dispersion and population differences. we also discuss the effect of nonlinearities and the effect of pumping rate threshold of the pumping field
接著第四章討論雙色非相干泵浦系統的非線性理論,分析了強驅動場情況下的lwi產生的條件和穩定性、非相干泵浦速率r ~ 1對增益、色散和粒子數差的影響;討論了該系統的非線性效應和非線性對非相干泵浦速率r ~ 1與r閾值關系的影響。The relation between the dye diffusion coefficients in the electrochemical dyeing of soybean protein fiber knitwear when changing the bath voltage and temperature was studied on regarding the dynamics
摘要從動力學角度出發,研究了大豆蛋白纖維針織物電化學染色染料擴散系數隨槽電壓、溫度的變化關系。Therefore, wool dyeing at low temperature in short time is feasible from the view of technology and economics ; it has a bright feature in dyeing industry
結果表明,超聲波染色不僅可以提高染料的平衡上染百分率,節約能源和降低染色成本,而且還可以加快上染速率,增大擴散系數,降低染料上染的活化能。分享友人