電偶極輻射 的英文怎麼說
中文拼音 [diànǒujífúshè]
電偶極輻射
英文
electric dipole radiation-
Radiation spectrums of relativistic charged particles in a dipolar magnetic field were studied numerically in detail by using the current density of moving charged particles in this paper
摘要從運動的荷電粒子產生的流密度出發,研究了在地球偶極磁場中運動的相對論性荷電粒子的輻射能量譜,並對其進行數值計算。By introduction of two lif layers, the adjustment of the position of thin layer alq3 in the microcavity is achieved and the effect of the coupling strength between the emissive dipole and vacuum electric - field on the emission intensity in ( / 2 - length microcavity is studied for the first time
在帶有dbr結構的高q值微腔中,觀察熒光壽命變短輻射速率提高的現象。通過使用填充層,來實現對薄層alq在腔中位置的調節,研究了輻射偶極子同光電磁場的耦合強度對輻射強度的影響。By using the multi - configuration dirac - fock ( mcdf ) method, the effects of relaxation and correlation on the transition energies and probabilities of electric - dipole allowed ( el ) resonance and intercombination transitions for 2p53s3 - 2p6 in neutral neon have been systematically studied firstly. and the results of the transition energies and probabilities ( lifetimes ) in length and velocity gauge have been presented. during the calculation, in order to consider the rearrangement effects of the bound - state density and some important correlations, the asfs of transition initial - and final - states were divided according to their angular - momentum and parity and calculated, and different number of csfs were included in the expansion of asfs
本文利用多組態dirac - fork ( mcdf )理論方法,通過對輻射躍遷初、末態電子波函數的獨立計算以及在原子態波函數的展開中考慮不同數量的組態波函數,系統地研究了弛豫和相關效應對中性ne原子2p ~ 53s ~ ( 1 . 3 ) p _ 1 ~ o - 2p ~ 6 ~ 1s _ 0電偶極共振和復合躍遷的能量以及躍遷幾率的影響,給出了長度和速度兩種不同規范下激發態的能量和輻射壽命;以中性ne原子的研究為基礎,進一步研究了類ne等電子系列離子( z = 11 - 18 )較低的激發組態2p ~ 53s和基組態2p ~ 6的能級結構以及各能級間的輻射躍遷特性。Thus, space - charge field in excitated photoconductor can intensity influence not only the shape of photo - electric current of pcss ' s, but also the terahertz out put of photoconducting antenna. in this paper, the forming and movement of space - charge field are simulated by means of fdtd method
觸發條件下光電導體內部電場不僅顯著的影響光電導開關產生超快電脈沖的功率、波形,而且對thz偶極天線的輻射功率也有明顯的影響。The inference of formula of electric dipole moment radiant field
電偶極輻射場計算式的推導Finish electric dipole radiation. qualitative aspects of electric quadrupole and magnetic dipole radiation
31結束電偶極輻射之討論。定性解釋電四極特性及磁偶極輻射。In the following section, the thesis demonstrated the robustness of the proposed method in the computation of radiated electromagnetic fields of switched mode power supplies by means of a numerical study on the electromagnetic fields of an electric dipole antenna
應用本文開發基於pml吸收邊界條件三維時域有限差分計算軟體,計算了電偶極子天線的三維輻射電磁場,並將計算結果與解析解進行了對比分析,驗證了時域有限差分法計算高頻開關電源輻射電磁干擾的有效性。In particular the characteristics of the radiation spectrums were described
分析了相對論性荷電粒子在地球偶極磁場這種特殊磁場中的輻射特點。Time - domain radiation models are brought forward for compromising emanation by applying standing wave dipole model and traveling wave monopole model to problem of electromagnetic information leakage. 2
首次將駐波偶極子模型和行波單極子模型引入信息電磁泄漏機理研究,提出了泄漏發射的時域輻射模型; 2Thz radiation generated from a si3n4 covered gaas photoconductive dipole antenna is investigated in the paper
分析了瞬態電場對thz偶極天線輻射的影響。In chapter 2, two kinds of physical models, traveling wave monopole model and standing wave dipole model, are set up as well as information theory models
其中第二章建立了行波單極子模型和駐波偶極子模型兩種物理模型;第三章研究了計算機陰極射線管顯示器電子束的電磁輻射。We consider two situations : ( i ) the light is polarized along the z - direction, in which case the first allowed dipole transition is to the first subband ( nx - 1, ny = 1 ) ; ( ii ) the light is polarized along the x - direction ( paralleled to the transverse cross - section of the wire ). the first allowed dipole transition is to the second subband nx = 2 relative to the x - direction and to the first subband nr = 1 relative to the y - direction of the wire
考慮了兩種不同惰況:輻射光沿階線的軸線偏振k方向x輻射光平行於軸截面偏振(設為二方向山偶極躍遷的選擇定則使得體系從初態躍遷到末態分別為電于的第一于帶和第二子帶,二名的光電離0截面隨光于能量的變化截然不同Comparing with uncovered antennas with the same gap size, the covered antenna has higher breakdown voltage at the same optical exciting power, and it ' s thz out put is 1. 5 times of uncovered antenna
與未鈍化的光電導偶極天線相比, si3n ;鈍化過的光電導偶極天線耐壓能力顯著提高,其輻射功率約為未鈍化天線的1 . 5倍。This thesis contributed to the comprehensive study of the finite - difference time - domain ( fdtd ) method and its application to the numerical computation of radiated electromagnetic fields in switched mode power supplies. the work includes mainly three parts : the study on the performance of pml absorbing boundary condition applied to pseudo low frequency electromagnetic problems ; the validation of the fdtd method with pml absorbing boundary conditions and the corresponding computer software based on the numerical study of the electromagnetic field of an electric dipole antenna, and its application to the numerical computation of radiated electromagnetic fields in switched mode power supplies ; the development of an improved alternating direction implicit finite - difference time - domain method
在綜合前人工作基礎上,本文對時域有限差分( fdtd )法及其在開關電源輻射電磁場數值計算中的應用進行了系統的分析和研究,其核心內容包括:偽低頻電磁場數值計算中pml吸收邊界條件性能的研究;基於基準問題?電偶極子天線三維輻射電磁場,驗證了本文構造的基於pml吸收邊界條件的三維fdtd法及其計算軟體,並應用於高頻開關電源輻射電磁場的數值分析;提出了一種改進的交替方向隱格式時域有限差分法。分享友人