自發散射 的英文怎麼說

中文拼音 [zìfāsǎnshè]
自發散射 英文
spontaneous scattering
  • 自 : Ⅰ代詞（自己） self; oneself; one s own Ⅱ副詞（自然;當然） certainly; of course; naturally; willin...
  • 發 : 名詞（頭發） hair
  • 散 : 散動詞1. （由聚集而分離） break up; disperse 2. （散布） distribute; disseminate; give out 3. （排除） dispel; let out
  • 射 : Ⅰ動詞1 （用推力或彈力送出） shoot; fire 2 （液體受到壓力迅速擠出） discharge in a jet 3 （放出） ...
  • 自發 : spontaneous
  • 散射 : [物理學] [電學] scattering; radio scattering; scatter; dispersion
  1. The spinning motion makes the scattering dots changed rapidly during the imaging, which makes the one - dimension range - profile between conterminous targets change acutely

    自旋運動使目標散射點在成像期間發生變化，使得相鄰回波間目標的一維距離像變化劇烈。
  2. First introduces briefly the characteristic of microwave, the history of mamt, its characteristic and trends. then explains the contents of one port reflection parameters, the way to measure them and something to pay attention to. at the end we illustrates how to get the reversible two ports s matrix using eight - point method

    首先概述了微波的特點，接著介紹了微波自動測量技術的發展歷史、特點及其今後發展的趨勢，然後說明了二埠網路反射參量的內容、測定方法、需要注意的問題以及可逆二口網路散射參量的八點法測量，重點介紹了八點法圖解的方法。
  3. The efficient sppc had been performed with 1 - hz - repetition - rate 532nm nanosecond pulses, in which phase conjugate reflectivity as high as 21. 5 % was obtained. when sppc were operated in ce : batio3 with 532nm, 632. 8nm and 790nm cw lasers, the maximum sppc reflectivity of 54. 1 %, 88. 2 % and 80. 5 % were obtained, respectively. unlike the results reported before that four - wave mixing by stimulated photorefractive backscattering ( spb - fwm ) only exists at short wavelengths while four - wave mixing by total internal reflection ( tir - fwm ) only exists at long wavelengths, both of these two mechanisms coexist at all wavelengths from 532nm to 790nm in our experiments

    通過大量的實驗全面研究了ce ： batio _ 3自泵浦位相共軛特性：在低重復頻率（ 1hz ） 、 532nm調q激光泵浦時最高獲得了21 . 5的位相共軛反射率，而此前報道過的建立位相共軛脈沖光最低重復頻率是10hz ；實驗中發現在532nm 790nm波長范圍內，在不同的波長激光泵浦時，同時存在兩種自泵浦位相共軛機制：全內反射?四波混頻（ tir - fwm ）和受激背向散射?四波混頻（ spb - fwm ） ；在連續激光泵浦時，對532nm 、 632 . 8nm和790nm三種波長，最高分別獲得了54 . 1 、 88 . 2和80 . 5的位相共軛反射率；同時還研究了自泵浦位相共軛光的時間穩定性。
  4. Low frequency micro - vibration causes the micro - fluid to produce uniform dispersion and injection which carried out a hydrophobization treatment on the inner wall of micro - nozzle, thus eliminated the spontaneous flowing of micro - fluid inside the micro - nozzle due to wet ting effect so as to let the micro - injection be provided with a digitalized and volume controllable character

    壓電陶瓷低頻微振動使得微流體產生均勻的離散和噴射；對微噴嘴內壁進行疏水化處理，從而消除微流體由於濕潤作用在微噴嘴內部的自發性流動，使得微噴射具有數字化量可控的特徵。
  5. In the focal plane of z = 0, the smaller the dss of the fhb, the higher the optical potential, and the greater the corresponding optimal detuning 8, which are beneficial to atomic lens because it cannot only be profitable to obtain an atomic lens with a higher resolution, but also helpful to reduce the spontaneous emission and photon scattering effects of atoms in the fhb

    在焦平面上，聚焦中空光束的dss越小，光學勢越大，相應的最佳失諧量越大，這對原子透鏡的性能越有利。因為這不僅容易得到高解析度的原子透鏡，而且還可以減少在聚焦中空光束中原子的自發輻射和光子散射效應。
  6. 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。
  7. Study of raman scattering of plastic optical fiber

    光纖中放大的背向自發拉曼散射的增益特性
  8. But if we want to make it work normaly and make it work with electronic development to distinguish the neutron ' s inelastic scattering y spectra with the capture spectra, then we can get the element ' s inelastic scattering y spectra, we must research again the controlled circuit of the pulse neutron generator

    而要使脈沖中子發生器正常工作並且能於我們自己研製的電控門配合，將中子與物質中所含元素的原子核相互作用的非彈性散射反應和俘獲反應區分丌來，從而得到能夠較好的表徵該元素的非彈性散射譜。
  9. First of all, this thesis introduced the related theoretical knowledges about near - field scattering measurement systemically, and focused on discussing the way of self - transmit and self - received near - field rcs measurement then simulated it by using column and hexagonal prism as a target under test

    重點在於探索自發自收平面近場散射測量方法，分別對圓柱和六稜柱進行了自發自收的模擬，詳細討論了窗口參數、掃描面大小對于測量結果的影響。
  10. Forward spontaneous raman scatter noise in the fiber raman amplifier

    光纖拉曼放大器中的前向自發拉曼散射噪聲
  11. Chapter 2. spontaneous raman scattering and the raman scattering power of one molecule are analyzed

    第二章，分析了自發raman散射理論模型和單個分子的自發raman散射的功率。
  12. Combining our studied emphases, we make deeply theoretic analysis for the theoretics of spontaneous brillouin scattering in fiber and the mechanism of its sensing for temperature and strain

    同時結合本課題的研究重點，對光纖中自發布里淵散射理論及其對溫度/應變的傳感機理進行了較深入的理論分析。
  13. It combines the advantages of ultrasound and optical technology. ultrasonic wave scatters much less in biological tissue than light wave and can be used as a localizer in tissue. the diffused photons tagged by the ultrasound in the focal zone will be collected and used for image

    超聲調制主要是使散射介質內的散射粒子的分佈以及光學特性發生變化，比如說使介質的折射率發生改變而導致光學相位變化，結合散射和自相關理論可以解釋一些超聲調制多重散射光的現象。
  14. In this paper a system has been developed for studying characteristics of " clouds and sky " on the images taken by a whole - sky camera at three different wave bands ( the visible, the infrared, long wave infrared ), then assessing the presence, distribution, shape, and radiance of clouds over the entire sky using automated cloud decision algorithms and related processing

    根據發展自動化雲觀測的目標，利用雲和晴空大氣在可見光近紅外、熱紅外多波段散射輻射和熱輻射的不同特徵，我們嘗試建立一個多波段（可見近、熱紅外）全天空成像輻射觀測系統，進行全天空分波段成像輻射的獲取，定量分析和特徵識別，獲得雲量、雲型、雲底高信息，實現對雲參數化信息的自動獲取。
  15. Three shaped profiles ( parabola, linear, and exponential ) have been considered. the exponential dispersion profile fiber loop is optimal for the propagation and compression of picosecond pulse. on the contrary, the parabola dispersion profile fiber loop is optimal for femtosecond pulse due to the high order effects such as the third order dispersion ( tod ), stimulated raman scattering ( srs ) and self steeping ( ss )

    （ 3 ）研究不同色散遞減類型（拋物線遞減、線性遞減、指數遞減）光纖構成的環形腔中傳輸的特性，發現其色散曲線為指數遞減型光纖有利於皮秒光脈沖的傳輸與壓縮；而對于飛秒脈沖，由於三階色散（ tod ） 、脈沖拉曼自散射（ srs ）及自變陡（ ss ）等高階非線性效應的影響，情況恰恰相反；色散曲線為拋物線遞減型的光纖構成的光纖環最有利於脈沖傳輸與壓縮。
  16. We use the laser output ( 320 nm, 200 fs ) of optical parametric amplifier ( opa ) in < wp = 5 > an active passive mode - locked femtosecond ti - sapphire laser operating at a repetition rate of 1khz as a exciting resource to develop optically pumped stimulated emission of zno thin films. when rectangular stripe laser irradiates thin films, optical resonant cavity is naturally formed between two nanocrystallites along with the rectangular laser stripe and planar weveguide confines the light scattering

    利用飛秒激光器作為光泵浦激發光源，研究了氧化鋅薄膜的光泵浦受激發射，當條形光斑輻照薄膜樣品時，將沿著光斑條由氧化鋅納米晶面自然地形成光學諧振腔，由於平面介質波導結構限制光散射，所以成功地觀測到二氧化硅襯底上的納米氧化鋅（ zno ）薄膜的紫外受激發射。
  17. The propagating characteristics of femtosecond pulse in this type of nolm are also investigated. the result shows that the optical switching is valid only under certain condition for femtosecond pulse due to the higher - order dispersions and nonlinear effects, especially the stimulated raman scattering ( srs ). moreover, analysis of the higher - order effects shows that srs enhances the pulse compression in some conditions

    研究結果表明，由於受到高階色散及高階非線性效應的影響，特別是在受激拉曼自散射效應的影響下， nolm的開光特性只在一定條件下存在；並且通過對高階效應的分析比較，發現受激拉曼散射在一定條件下增強了飛秒脈沖的壓縮。
  18. In succession, the theory of chirped - pulse amplifier system is given in detail, firstly, studying from designing experimental light road and optical components to theoretical analysis, we par ' tly finished the system by ourselves. about ultr a - shoft pulse with a pulse - width of 9. 8f s and output power of 650mw and band - width of about l 20nm is output from oscillator source, secondiy, the stretching capacity of single grating four - pass stretcher is measured using abcd matrix combining collins function, and the effect of relativ e parameters to the streching ratio is also simulated. thirdly, a new type of disjunctional frequency moduiating function is provided according to the gain - narrowing and gain - saturation which are appeared in the co urse of amplification, under modulating the two effects are both controlled on some e xtent, fourthiy, the effect of ase that is often ignored by people is analyzed and the resolving methods are also given

    從光路、光學元件的自行設計到理論分析計算，初步建立了一臺實驗系統；採用abcd矩陣法結合collins公式計算了四通式單光柵展寬器的展寬量，並模擬了相關參數對展寬比的影響，對實驗具有指導意義；評價了再生放大器和多通放大器的優缺點，對放大過程中通常忽略的放大自發輻射現象（ ase ）進行了分析，並提出了相應的解決方法；針對放大過程中出現的增益窄化和增益飽和現象，對輸入種子脈沖提出了一種新的分段頻率調制函數，實現了對增益窄化效應和增益飽和效應的共同抑制；提出了系統的材料（包括放大介質和光路中的普通介質）正是融合高階色散的來源。
  19. It is shown that the divergence angle of pumping beam and off axis pumping and spontaneous radiation influenced the linewidth of parametric light more quickly than those of other factors did, and the linewidth of parametric light is very narrow far away from the degeneracy point, and the linewidth begins to large quickly at the degeneracy point

    結果表明，泵浦光的發散角、泵浦光的偏軸泵浦、自發輻射對參量光的線寬影響較大。在遠離簡並點處，線寬較小，在簡並點處，線寬較大。
  20. Furthermore, when the hybrid spheres are dispersed in the polymers with different refractive index, the spontaneous emission rate of the eu3 + ions is modified due to the dielectric confinement effect

    將稀土配合物sio _ 2微球分散在介電常數不同的聚合物介質中，折射率邊界引起的介電限域效應改變了稀土離子的自發輻射速率。
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