激光躍遷 的英文怎麼說

中文拼音 [jīguāngyuèqiān]
激光躍遷 英文
laser transition
  • 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...
  • 光 : Ⅰ名詞1 （照耀在物體上、使人能看見物體的一種物質） light; ray 2 （景物） scenery 3 （光彩; 榮譽） ...
  • 躍 : 動詞（跳） leap; jump
  • 遷 : Ⅰ動詞1. （遷移） move 2. （轉變） change 3. （古時指調動官職） be appointed to a certain post Ⅱ名詞（姓氏） a surname
  • 激光 : [物理學] laser 激光靶 laser target; 激光報警器 laser avoidance device; 激光玻璃纖維 laser fibre; ...
  1. 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。
  2. Afterl95os, due to the development of quantum electronics, a new embranchment appeared, which is laser physics, it ? also called the physics of quantum transitions because of the emanation of electronic technology. the symbol of laser physics is the noble physics prize in 1964. the naissance of laser physics is the landmark in the cognition of naturalness

    20世紀中葉以後由於量子電子學的發展而出現了一個新的分支，以研究激光物理機制，探索新型激光器，已形成了專門的學科，即激光物理，或因激光發源於電子技術而稱為量子躍遷物理學，它是以1964年的諾貝爾物理學獎為標志的。
  3. An atom on an excited upper level can execute a downward transition not just spontaneously but also when photons of the radiation field surrounding the atomic interact with it.

    處在較高的激發態上的原子不只可以自發地而且可以在它與原子系統周圍輻射場的光子相互作用時發生向下的躍遷。
  4. Abstract : we have studied theoretically a beat effect in a four - level system due to fifth - order optical polarization, and considered the cases that the pump beams have either narrowband or broadband linewidth. we have found that the accuracy for the energy - level splitting measurement is determined by the homogeneous linewidths of the optical transitions. that is to say, this technique can achieve doppler - free precision in the measurement of the energy level splitting between two excited states which are dipolar forbidden from the ground state

    文摘:研究了四能級系統中基於五階極化的拍頻效應，考慮了抽運光束為窄帶線寬或寬帶線寬的情形.發現其對能級分裂的測量精度決定於光學躍遷的均勻增寬.也就是說，這種技術在測量與基態是偶極禁戒躍遷的兩激發態之間的能級分裂時，可得到消除多普勒增寬的精度
  5. For the sake of the practical application, the 1s to 2p transitional spectra of the group composed by na10 + and al12 + or another group composed by mg11 + and si13 + will be selected to use in the calculation about relation of relative intensity of spectra and electronic temperatures for making theoretical values approaching practice

    計算所得的能級躍遷波長、自發躍遷幾率a 、受激躍遷幾率gb和振子強度是對實驗所用光譜數據的補充。此外研究表明，利用z = 2的不同元素作示蹤元素進行溫度診斷是合理可行的。
  6. It is found that the exciting spectra is moving to long wave with the increasing of eu concentration, emission intensity is rising, the properity of red homochromy is becoming better because of the different quench concentration of emission levels 5do, 5dj and 5d2 - when the concentration of eu is up to 1. 2mol %, the emission levels 5di and 5d2 is quenching

    研究發現，隨著eu濃度的增加，熒光體y2o2s ： eu激發光譜發生紅移，發射強度增大，紅色單色性變好，這是因為eu的5d0和sdl 、 5d2發射能級躍遷發光的淬滅濃度不同，當濃度1 . 2mol時，后兩者因交叉弛豫引起濃度淬滅。
  7. Excited with 228nm, the emission bands centered at about 365nm and 460nm originate from the electron transitions of 1d2 - 1s0 and 3d - 1s0 in ag + respectively, and the emission band at 400nm results from the surface plasma resonance of the silver nanoparticles, which aggregated near the surface of the films

    在228nm光激發下，復合膜中ag ~ +的電子的~ 1d _ 2 ~ 1s _ 0躍遷和~ 3d ~ 1s _ 0躍遷分別在365和460nm附近發光，聚集在復合膜表面的納米銀粒子的表面等離激元共振導致了400nm附近的發光。
  8. Abstract : we have studied the polarization beats spectroscopy with phase - conjugation geometry in a cascade three - level system. it was found that the accuracy for the energy - level difference measurement is determined by the homogeneous linewidths of the optical transitions. under the condition for the occurrence of beating, the frequency difference of the beat between two independent light sources could exceed the laser linewidth. the measurement accuracy for laser absolute frequency could reach the same order of magnitude as the laser linewidth

    文摘:研究了級聯三能級系統中的相位共軛極化拍頻光譜術.發現其對能級差的測量精度決定於光學躍遷的均勻增寬.在符合拍頻條件時，兩獨立光源拍頻的頻差可以超出激光線寬，激光絕對頻率的測量精度可達到與激光線寬同一量級
  9. So the selection rule of no is analogous to that of alkali atom and different from the usual diatom molecule. the conclusion is further affirmed by the two photon fl uorescence excitation spectrum of no

    為此我們利用雙光子熒光激發光譜技術對no分子所表現出的與普通雙原子分子不同的躍遷選擇定則進行了實驗驗證。
  10. On the other hand organic materials may be operated at lower voltage and is eligible to get blue color luminescence. these two kinds of materials are mutual compensatory

    它有兩個發光峰，短波峰相應于lumo至homo的躍遷，長波峰是激子的發光。
  11. Theory of semiconductor 、 absorption 、 direct transition 、 indirect transition 、 emission 、 radiation recombination 、 iradiation recombination 、 donor 、 acceptor 、 exciton 、 phonon 、 photon 、 polarition

    半導體基本原理、吸收、直接躍遷、間接躍遷、輻射、發光復合、非發光復合、施子、受子、激子、聲子、光子、恆化子。
  12. Adopting the amendatory rate equation, the threshold of the micro - cavity has been studied and the conclusion is shown as following : if there is not non - radiation transition, the pump velocity just need to compensate the photon velocity escaped from the cavity, and the intensity of output light will direct ratio to the intensity of input light then we got a micro - cavity laser with no threshold

    採用修正的速率方程對微腔激光器的閾值進行研究，得到如下結論：在沒有無輻射躍遷時，激光器的泵浦速率只需恰好補償光子向腔外的逃逸速率，輸出光強隨著輸入泵浦光強性線增加，實現所謂的「無閾值」激光器。
  13. The main works and results we have accomplished are as follows : 1 ) red - detuned locking of cooling / trapping laser to the cycling transition of cesium cooling has been accomplished by means of a double - passed acoustic - optical frequency shifting system and the technique of saturated absorption spectroscopy. the short - term residual frequency jitter is less than 350khz ; 2 ) automatic controlling system by computer programs has been established for laser cooling and trapping and cavity qed experiment. the laser and magnetic fields can be controlled by the acoustic - optical modulator and the electronic - controlled logic gate respectively

    具體如下： 1 ）採用了往返兩次通過的聲光頻移系統結合飽和吸收光譜技術的實驗方案，實現了冷卻俘獲激光頻率相對于銫原子冷卻循環躍遷的負失諧鎖定，短期頻率穩定度約在350khz以內，並可方便地調節其負失諧量而無須對后續光路再作調整； 2 ）建立了一套基於計算機程序控制的、銫原子激光冷卻與俘獲實驗所需的時序控制系統。
  14. Comparing of the ratio of 550nm emission intensity to 525nm in samples annealed at different temperature and times, the results obtained from a fit of the integrated intensity for these two emission indicated the change of radiative transition probability at different energy level are different

    通過比較不同退火溫度和時間樣品的兩者發光變化的不同，發現兩者的激發機理不同。通過比較不同樣品的525nm和550nm發射強度比值隨退火條件的變化以及這兩個發光的積分強度的變溫擬合結果說明退火對不同能級的輻射躍遷幾率的影響不同。
  15. With time - evolution - operator, it is proved that the population of upper level is in circumstance of cyclic oscillation by laser pulses pair of gaussian line - shape in a homogeneous broadening two - level system. the oscillatory time oxide is the delay time between the laser pulse pairs and the oscillatory frequency equals the one of transition between the lower and upper level

    引入時間演化算符，證明均勻增寬二能級體系在飛秒激光脈沖對作用下上能級激發態布居是周期性變化的，它以飛秒脈沖對之間的延時為時間軸，以該原子能級之間的躍遷頻率為振蕩頻率
  16. 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。
  17. The method plays an important role in distinguishing and studying the complicated and confused spectral characteristics and mechanisms of the rare earth. ( 2 ) it is found and explained that due to the boltzmann distribution law at room temperature, the positions of the fine peaks of the photoluminescence band stemming from the transitions between an excited state and the ground state of a re3 +, match these of the absorption bands from the transitions between the ground state and the excited state. the stark split energy levels of the ground state 4i15 / 2 and two excited states 2s3 / 2 and 4f9 / 2 of the er3 + in er203 have been determined

    薛理輝武漢理工大學博士學位論文摘要（ 2 ）發現在常溫下，由於boltzm ~分佈律的作用，在re3 +的基態電子態和激發態間躍遷所產生的發光譜帶和吸收譜帶中的精細譜峰的位置一一相同，解釋了產生這種關系的原因，並弄清了er203中er3 +的基態電子態4lts . 12和激發態電子態2凡/ 2 、 4凡/ 2的stark能級分裂情況，確定了常溫下erzo3中er3 +的4了15 / 2一2凡/ 2和『 i ， 5 / 2一『凡/ 2精細能級間的躍遷形式。
  18. The zno particles are excited by ultraviolet ( uv ) exciting light ( 365 nm ), showing two photoluminescence ( pl ) peaks / bands, centered at 2. 90 ev ( blue ) and 2. 23 ~ 2. 41 ev ( yellow - green ), respectively. the intensity of the yellow - green band was reduced after the product had been annealed in n2 and o2 at 350 c for 1h. ultraviolet visible absorption spectrum shows that the zno absorbs ultraviolet light intensely

    對于復合h ps zno結構的發光機制，認為是納米h價帶中的電子在紫外光的激發下，躍遷到zno的導帶，從而處于激發態，由於多孔硅的導帶比氧化鋅的導帶低， zno導帶中處于激發態的電子很快躍竄到多孔硅的導帶，然後再與h價帶中的空穴發生復合，發出可見光。
  19. We then discuss the vibrational - rotational level transitions and the population rate equations for the laser. in addition, electron temperature, electron density and the mixtured gas temperature in the laser plasma are investigated in details. the third part is with regard to the optimal designs and the experiments of the lasers

    在二氧化碳激光動力學機理的研究中，比較詳細地討論了二氧化碳激光動力學過程，給出了激光振動-轉動能級躍遷及其速率方程、激光等離子體電子密度和電子溫度，以及混合氣體的氣體溫度
  20. The starting is about copper vapor lasers ( cvls ). we begin with the discussion on the atomic radiation transitions in the cvls, followed by the review of the progresses in the cvls in recent years

    概述了銅蒸汽激光器的基本工作原理，簡述了銅蒸汽激光輻射原子躍遷，論述了銅蒸汽激光研究的發展與現狀
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