coherent condition 中文意思是什麼
coherent condition
解釋
相干發射-
Finally, the atomic coherent population trapping is studied in a multilevel laser - induced continuum structure system including cascade two - photon processes by means of quasi - classical theory. the condition leading to the atomic coherent population trapping and the dark state are given explicitly. the effects of atomic initial state and the laser intensity on the populations distributed in the atomic bound states are discussed
我們還運用準經典理論研究了含級聯雙光子過程的多束縛態激光場誘導原子連續態結構系統中原子布居數的相干俘獲，給出了產生相干俘獲的條件及暗態的表達式，討論了原子初態和激光強度對原於布居數的影響，揭示了原子相干對穩定rydberg原子的重要作用。 -
Time domain synchronous averaging can reduce the signal not coherent to rotation frequency effectively, and extract the repetitive signals directly related to machine operation condition
而時域同步平均可以有效衰減與回轉頻率無關的干擾，提取與工作狀態直接相關的周期信號。 -
The results show that under the condition of the squeezing - power - number being an any even number or the pruduct of the squeezing - power - number and the total cavity - mode - number being an any even number, if some certain and fixed conditions are satisfied respectively by the initial phase of each mode in the state or the sum of the initial phase of each mode in the same state mentioned above, by the initial phase difference between any two components in the state, and by the sum of mean photon - numbers, which are modulated by the initial phase of each mode in the state mentioned, of all the single mode coherent states light field, the state can always display the effect of generalized nonlinear equal - power n - th power y - squeezing, or present the effect of generalized nonlinear equal - power n - th power h - squeezing, that changes alternatively and periodically
結果發現：在壓縮次數取偶數或者壓縮次數與腔模總數這兩者之積取偶數的條件下，若各模的初始相位或者各模的初始相位和、態間的初始相位差以及受各模的初始相位調制的各單模相干態光場的平均光子數之總和等分別滿足一定的取值條件，則態| ~ （ （ 4 ） ） _ q的第一和第二這兩個正交相位分量總可分別呈現出周期性變化的、西北人學碩{ _學位論文摘要廣義非線性等冪次n次方y壓縮或者等冪次n次方h壓縮效應。 -
In this part, the author to the traditional justifiable defense constitution " five important documents said " proposed the objection, but advocated new " four important documents said ", and aimed at various important documents to launch the concrete elaboration. compares each viewpoint in the analysis in the foundation, does the author to the imaginary defense crime form and processing, whether violate to the indirect principal offender and the help implements the justifiable defense, how understood justifiable defense question and so on boundary condition proposed is different in the logically coherent argument new position
在該部分，筆者首先對傳統的正當防衛構成「五要件說」提出了異議，而主張新的「四要件說」 ，並針對各要件展開了具體論述;其次在分析比較各種觀點的基礎上，筆者對假想防衛的罪過形式及處理、對間接正犯和幫助犯能否實行正當防衛、如何理解正當防衛的限度條件等問題提出了不同於通說的新主張。 -
The expressions of average value and variance of the phase difference and sum components are presented. we verified that under an appropriate condition the interference between the different transition processes makes counter balance, which induces the atom - field coupling system to be decoupled. the atomic population coherent trapping will take place
模的相位保持隨機分佈，給出了光場兩個模相位差以及相位和的平均值與方差表達式，揭示了在適當的條件下，由於不同躍遷通道間的量于干涉效應，光場與原子退耦合，系統呈現原子布居數的相干俘獲現象。 -
According to the requirement of innovation engineering in chinese academy of sciences, the work in this thesis focused on fabrication of soi material with epitaxial layer transfer of porous silicon and study of luminescence of modified porous silicon, and we obtained the following new results : the effect of doping and anodizing condition on the properties of porous silicon, including the microstructure, ciystallinity and surface morphology, has been studied systematically. it is found that the porous silicon and substrate have the same orientation and share a coherent boundary. but at the edge of pores, the lattice relaxes, which induces xrd peak moving of porous silicon
Soi技術和多孔硅納米發光技術研究是當今微電子與光電子研究領域的前沿課題，本文根據科學院創新工程研究工作的需要，開展了多孔硅外延層轉移eltran - soi新材料制備與改性多孔硅發光性能的研究，獲得的主要結果如下：系統研究了矽片摻雜濃度、摻雜類型和陽極氧化條件等因素對多孔硅結構、單晶性能和表面狀態的影響，發現多孔硅與襯底並不是嚴格的四方畸變，在多孔硅/硅襯底的界面上，多孔硅的晶格與襯底完全一致，但在孔的邊緣，多孔硅的晶格發生弛豫。 -
Abstract : the atomic quantum behaviors in the system of two - mode squeezed vacuum field interacting with a two - level atom via two - photon process are studied by means of quantum theory. the condition for the occurrence of coherent trapping and the influence of the squeezing parameters on the atomic dipole squeezing are discussed
文摘:運用全量子理論研究了雙模壓縮真空場與二能級原子雙光子作用過程中原子的量子行為，論證了原子發生相干俘獲的條件，討論了壓縮參數對原子偶極壓縮的影響
分享友人