激致發射 的英文怎麼說

中文拼音 [jīzhìfāshè]
激致發射 英文
stimulated emission
  • 激 : Ⅰ動詞1 （水因受到阻礙或震蕩而向上涌） swash; surge; dash 2 （冷水突然刺激身體使得病） fall ill fr...
  • 致 : Ⅰ動詞1 （給與;向對方表示禮節、情意等） deliver; send; extend 2 （集中於某個方面） devote （one s ...
  • 發 : 名詞（頭發） hair
  • 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） ...
  1. Of the causes of the occurrence of the above cases and whether it is due to the department of health not vaccinating schoolboys against german measles, and the main reasons for an upsurge in the number of these cases

    上述病案發生的成因為何，是否與生署不為男學童注射德國麻疹疫苗有關導致上述病案激增的主要原因為何
  2. Both ionization and excitation lead to electronic transitions that may be the emission of light.

    電離和激發都將導致可能伴隨有光發射的電子躍遷。
  3. We found the " forward stimulated raman scattering " will be excited if the pulse length is greater than plasma wave length. the " forward stimulation raman scattering " decreases the phase velocity and the amplitude of the wake wave which will lead to the reduction of maximum kinetic energy of the electrons trapped

    結論是：當脈沖長度接近等離子體波長時，稀薄等離子體將發生「前向受激raman散射」 ，它使脈沖后沿拉長，導致尾流場的相速度變小，以至於被尾流場「捕獲」的電子最大動能大大下降。
  4. During its storage, transportation, maintenance and service, the solid rocket motor ( srm ) may encounter many incidents such as being dropped onto the ground while being hoisted up, crashing when vehicle turns over during transportation, being struck heavily in takeoff or landing accident while being carried by airplane, impacting with launch platform or buildings when there is abnormality during launch of multiple - stage rocket. impact of great intensity takes place in such accidents, which will lead to srm ignition or explosion

    固體火箭發動機在貯存、運輸、維護及使用過程中可能遇到各種意外機械撞擊激勵，例如:吊裝過程中跌落，運輸過程中因交通事故發生翻覆碰撞，機載固體導彈掛飛時因載機發生起降事故導致高速沖撞，多級火箭發射初期因發射異常與發射架或地面建築物發生碰撞等，固體火箭發動機將受到劇烈機械撞擊載荷作用，導致其著火燃燒甚至爆炸。
  5. But lebanon ' s defense minister warned against rocket attacks on the israel that might draw retaliation and reignite the fighting

    但是黎巴嫩國防部告戒不要向以發射火箭彈那樣可能激起報復行為並導致戰火重燃。
  6. With the rapid development of optical fiber communication technology, low - cost and high quality near infrared laser and light emitted diode working at room temperature become widely available. the emit wavelength from these light resource is not only consistent with the three low - decay windows of fiber optics, but also with many wide - frequency or recombination absorption spectrum of environmental and industrial gases

    光纖通信技術的發展使相對低價、工作于常溫、高質量的近紅外激光器和發光二極體可廣泛獲得，這些發光光源的發射波長與光纖的三個低損耗窗口相一致，也與許多環境和工業氣體的泛頻或復合吸收譜線相一致。
  7. In the neon - filled franck - hertz experiment, the experimental value gravely deviates from the value of the first excited state because of the effect of highly excited state and bremsstrahlung

    在充氖夫蘭克赫茲實驗中，由於高激發態和軔致輻射的影響使實驗值嚴重偏離第一激發態值。
  8. It is convenient for x - ray tube excited source to detect multi - component on site due to the advantages of high excitation flux, easy protection, and characteristic x - ray and continuous bremsstrahlung spectrum included in its exciting spectra

    X光管激發源具有活性強、易於防護等優點，產生的激發譜包括特徵x射線和連續的軔致射線譜，方便現場測定多元素。
  9. The peak in the direction of the target normal is consistent with mat of predicted by the resonance absorption and another peak of hot electrons emission in the specular reflection direction is due to the multi - acceleration mechanisms. the hot electrons emission along the back - reflection direction is probably caused by the acceleration of the back - reflection laser, which is for the first time put forward by us

    其中，靶法線方向的超熱電子發射峰與共振吸收（ res ~ eabso甲tion ）機制所預言的一致;根據理論估算提出激光反射方向的超熱電子發射峰是幾種加速機制共同作用的結果;我們首次提出背反射激光加速超熱電子的新機制，並用此機制解釋了激光背反射方向產生的超熱電子發射峰。
  10. Based on the theoretical analysis and experimental researches, it is presented that the wider spectra are resulted from the many fluorophores with large numbers of vibrational energy levels on the ground level in the blood cells, and the reduction of the spectral intensity is due to the reabsorption of the blood cells and the energy transfer of the collisions between the fluorophore and another one or other macromolecule. on the other hand, when the concentration of the blood cells is increased, the reabsorption of the blood cells, the secondary fluorescence due to the reabsorption and the influence of the concentration on the energy levels of fluorophores are all the factors of the red - shifted spectral peaks

    在進行理論分析和研究的基礎上，提出了因血細胞中存在多種熒光團，且這些熒光團的電子能級上又存在大量的不同的振動能級，從而導致被激發的熒光團發出較寬的熒光光譜；血細胞濃度的增大，熒光團以及其他大分子之間的距離變小，造成它們之間因碰撞的能量轉移概率加大，因而易產生熒光猝滅，結果導致熒光強度的變小；血細胞溶液中重吸收所導致的熒光猝滅和二次熒光發射，以及血細胞濃度的變化對其中熒光團能級系統的影響都是導致熒光峰值波長「紅移」的原因；進而研究了led光誘導血細胞產生熒光光譜的機理。
  11. The photo - induced phase transition of the different light intensities, photo - energies and directions of the polarized light is investigated. it suggested that the photo excites the down spin eg electrons and destroys the spin order system of the thin films. the relation between the he - ne laser reflectivity of the thin film, applied current and resistance was analyzed by the optics theory of solid state physics

    光子通過激發e _ g向下電子的躍遷，從而改變材料自旋極化方向，影響體系的輸運行為；首次研究了cmr薄膜的激光反射率和偏置電流的關系，並用固體光學理論對其定性分析，表明反射率的變化是由於電場引起材料的晶格畸變，改變了極化率，從而導致材料的折射率和反射率發生改變。
  12. In this amplifying way, lasing was firstly realized in an organic emitting diode in the area. the gain region was produced by light pumping through ito side of the sample, and electrical injection was also applied

    按這種增益方式，在此領域首次在有機電致發光二極體結構中實現了受激發射，增益區的形成主要依靠通過ito一側的光泵浦，也配合了電流注入。
  13. With the rapid development of optical fiber communication technology, low - cost and high quality near inferred laser and light emitted diode working at room temperature become widely available. the emit wavelength from these light resource is not only consistent with the three low - decay windows of fiber optics, but also with many wide - frequency or recombination absorption spectrum of environmental and industrial gases

    光纖通信技術的發展使相對低價、工作于常溫、高質量的近紅外激光和發光二極體可廣泛獲得，這些發光光源的發射波長與光纖的三個低損耗窗口相一致，也與許多環境和工業氣體的泛頻或復合吸收譜線相一致。
  14. Based on the rate - equation theory of four - level system, the expressions of threshold pump power, output power and slope efficiency are given. the influence of space distribution of pump light ( the position of focusing point, dimension of pumping light and divergence angle ) to the output characteristics are also discussed. then, by investigating the effects of thermal effect of laser crystal on the size of laser cavity mode, we obtain the mode - matching principle of high power laser diode end - pumped solid - state lasers

    其中，在泵浦光的空間分佈變量中我們分別考慮了泵浦光聚焦后的腰斑大小、聚焦腰斑在增益介質中的位置以及泵浦光在介質中發散角的影響；然後我們研究了在高泵浦功率下激光晶體因吸收泵浦光而產生的熱效應所導致的熱透鏡效應以及熱致衍射損耗，通過分析它們對振蕩激光腔模尺寸的影響，得到了高功率半導體激光二極體端面泵浦固體激光器模式匹配的要求，為高功率連續單頻nd ： yvo _ 4激光器的優化設計提供了理論依據。
  15. 5 high isolation filter, easy for the division of frequency ; 6 return laser adopt dfb laser, multi ports have the same return panel

    6回傳激光發射採用有致冷量子阱dfb激光器，多口共用一個回傳功能板，即插即用。
  16. We also have analyzed the photoluminescence ( pl ) spectra of some zno films, it turns out that the emission of ultraviolet light comes from the radiative recombination of excitons within nano - crystal energy band - gap, and the pl peaks move to smaller wavelength because zn are substituted by fe, co, and cu, which cause the size of the film grains smaller and the effective band - gap bigger. the red emission of zno films is due to, on the one hand, decrease of the film grains size which causes the emission intensity smaller and smaller until it disappears abruptly, on the other hand, the transition of electrons from deep donor level of the oxygen vacancies to the valence band

    另外，我們還對薄膜光致發光性質進行了分析和研究，結果表明：納米結構zno薄膜的紫外發光來源於帶間激子的輻射復合發光， pl譜的帶邊發射峰發生藍移是由於fe 、 co 、 cu對zn的替代使薄膜粒子的尺寸減小，使薄膜的有效帶隙增寬； zno薄膜的紅色發光，一方面是zno顆粒尺寸的減少，帶間的激子發射峰越來越弱直至猝滅，另一方面主要是與zno晶格中的o空位有關，由深能級復合發光引起紅光發射。
  17. It was concluded that lasing was waveguided in ito layer and amplified near the interface in lighting layer where gain was obtained by light pumping

    經判定，受激發射是由於ito波導在與有機材料交界附近的增益區放大所致。
  18. 3 ) it was found that four newly " d - - d " type molecular materials have the same behavior as " d - - a " type materials in solution. lippert equation confirmed that the dipole moment of the exited - state were much bigger than that in the ground - state. 4 ) the relative intensity was improved when light - emitting molecular materials in p - cyclodextrim solution

    3 、發現本文合成的四個「 d - - d 」型分子材料具有與不對稱「 d - a 」型分子相同的溶劑效應， lippert方程證實了四個「 d - - d 」分子其激發態偶極矩大於基態偶極矩，從而導致相應熒光發射隨溶劑極性增大而紅移。
  19. 2. effects of ketamine in combination with he - ne laser irradiation on proliferation of human skin fibroblasts low intensity laser ( lil ) is being used clinically to enhance wound healing. unfortunately, the animal experimental results were controversial

    氯胺酮對he補e激光照射促人正常皮膚成纖維細胞增殖作用的影響低強度激光照射治療傷口愈合療效顯著，但是，動物實驗結果的不一致一直是阻礙其發展的嚴重障礙。
  20. In the process of study, by a lot of experiments for analyzing luminescent properties " affecting factors, such as concentration ce and tb h3bo : i, synthesizing temperature and temperature reserving time, reducing condition, etc, it gives out a good foundation for synthesizing ideal rare earths luminescent materials activated by ce and tb in aluminates strontium host. the study indicated that photoluminesent aluminates strontium power activated by ce, tb, in sral., 0, has a better luminescent effect. under the appropriate condition, srall. 0 ( that produce olivine light can be composed in 235nm or 365nm ul traviolet radiat ion act i vated by tbi07, al, > 0. i and srco : !

    研究表明，鈰、鋱共激活鋁酸鍶基光致發光粉體發光效果比較好；將tb _ 4o _ 7 、 srco _ 3和a1 _ 2o _ 3為原料，在適當的條件下可以合成在235nm或365nm紫外光激發下發出較強綠光的sral _ 2o _ 4 ： （ tb ）發光粉；加入ceo _ 2合成sral _ 2o _ 4 ： （ ce ， tb ）可以增強sral _ 2o _ 4發光粉體的發光性能：在合咸溫度下保溫時間對合成樣品的發光效果有重要影響；隨實驗條件的改變可以制備出發紅、黃、綠色光的磷光體；通過x射線物相分析法對合成物的物相組成進行測定。
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