laser transition 中文意思是什麼

laser transition 解釋
激光躍遷
  • laser : n 鐳射激光，受激發射光，激光；萊塞；激光器，光激射器 （ ＝ light amplification by stimulated emis...
  • transition : n 轉變，演變，變遷，變化；飛越；過渡期；【音樂】變調，轉調；【修辭學】語次轉變；【語法】轉換；【...
  1. In the system, the collimation semiconductor laser - scanned beam scanning two perpendiculars direct of one plane of the measured workpiece at the same time is made. the beams with the dimension information of two perpendiculars direct are processed by the scanning receive system, the high - speed photoelectric transition and electronic data process. two measured results of the diametric directs and ellipse tolerance, etc, parameter, of the turning workpiece on the same plane are obtained by non - contact automatic measurement

    在單向激光掃描檢測技術的基礎之上，提出了一種雙向激光掃描檢測系統，其採用激光掃描檢測技術與特殊光學系統相結合，用準直半導體激光掃描光束對被測工件徑向某一截面的兩個相互垂直方向同時掃描，經掃描接收光學系統、高速光電變換、電子學系統和微機數據處理系統，對將攜帶有垂直方向被測量信息的光束進行處理，實現了回轉體工件同一截面兩個垂直方向的徑向尺寸和橢圓度等參數的非接觸自動測量，解決了同時非接觸測量回轉體零件同一截面兩個徑向尺寸的難題，它具有高速，高精度和非接觸自動測量等特點。
  2. The 1999 nobel prize in chemistry was rewarded for professor ahmed h. zewail, california institute of technology, pasadena, usa for his studied of the transition states of chemical reaction using femtosecond spectroscopy. his pioneering investigation of fundamental chemical reactions, using ultra - short laser flashes, on the time - scale on which the reactions actually occur, and the development of femtochemistry are introduced

    介紹了1999年諾貝爾化學獎得主哈邁德.澤維爾教授採用激光技術研究超快化學反應，特別是對飛秒化學所作的先驅性研究以及飛秒化學的產生與發展。
  3. In this dissertation, we mainly report on a laser - produced plasma ( lpp ) source with liquid aerosol spray target. for sufficiently high backing pressure and low temperature, the valve reservoir gas of the light source can undergo a gas - to - liquid transition

    液體微滴噴射靶激光等離子體（ lpp ）光源是一種具有較高的軟x射線轉換效率且能夠長期連續運行的低碎屑光源。
  4. Measurement of transition radiation in femtosecond laser - solid target interaction

    固體靶相互作用中渡越輻射的測量
  5. And wherein the model is adapt to the change of size of the transition zone of corneal. the model can be used to correct wavefront aberration. the hardware and sofeware of the ophthalmic excimer laser system is designed

    設計了準分子激光人眼像差矯正系統的硬體和軟體系統，並對像差矯正系統實現的關鍵技術? ?飛點掃描技術、主動跟蹤技術、能量閉環控制技術進行了深入的研究。
  6. Yttrium aluminum garnet ( y3al5o12, yag ) is not only a very important laser material, but also a high - temperature structural material and a fluorescence material. in this paper, the discussions are mainly focused on the synthesis of yag powders by co - precipitation method, self - propagating high - temperature synthesis and mixed method, powder ' s property, etc. in the co - precipitation method, the precursor was produced by adding a mixed a1 ( no3 ) 3 and y ( no3 ) 3 solution to nh4hco3 solution. yag can be obtained by heating the precursor at looo ' c for 5 hours without the formation of yam and yap transition phase

    釔鋁石榴石（ y _ 3al _ 5o _ 12 ，簡稱yag ）是一種重要的激光基質材料，同時它還作為高溫材料和熒光材料得到了廣泛的應用，本文主要討論了化學共沉法、燃燒法制備yag的超微粉的工藝，並對yag超微粉的性能及物相進行了分析；採用固相合成法制備了ca ， ca ： yag系列陶瓷，並對其結構和性能進行了討論。
  7. The influence of noise color on the first - order - like phase transition ( folt ) in several kinds of laser systems is investigated in this paper

    本文著重研究噪聲的有色性對各種激光系統中一級相變類比的影響。
  8. 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。
  9. We believed that laser manipulation of a bubble might present a way to control the dynamic process of the bubble and clarify the origin of single - bubble luminescence. - especially, the liquid - to - vapor phase transition of a micro system ( such as a vapor bubble ) could be studied by using our method

    最近，本研究組提出利用紅外激光產生的熱鑷作用於動態空泡思想，並成功實現了利用熱鑷操縱脈沖激光產生的單個動態空泡，分析了熱鑷的起源，研究了空泡相變的動力學過程。
  10. 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。
  11. The second part is about co2 lasers. we first discuss the mechanisms of population inversion, including excitations and relaxations ( electron collision excitation, resonance transition excitation impacted by excited n2 molecules, the relaxation of both the lower - upper laser levels and the lowest level of co2 )

    首先，討論了二氧化碳激光粒子數的反轉機理，包括電子碰撞激勵、激發態n2分子等共振轉換激勵過程，激光上下能級co2 （ 00 1 ， 10 0 ）以及最低能級co2 （ 0110 ）的弛豫過程等幾個方面
  12. 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
  13. 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。
  14. Second, the mode fields of a strip waveguide and some slab waveguides have been simulated by applying finite - difference time - domain ( fdtd ) method. the curvature radius ; vicinity coupling ; transition loss and power attenuation of a s - shape bend waveguide have been analysed numerically by employing wide angle finite - difference beam propagation method ( fd - bpm ), as well as the coupling loss of optical fiber and waveguide. in addition, the framework of the s - shape waveguide laser has been

    其次，應用時域有限差分法，結合波導模式理論對條形與平面波導進行了模場模擬;應用廣角有限差分光束傳播法，對s形彎曲波導的曲率半徑、鄰近耦合、過渡損耗、功率衰減以及波導與光纖的各種耦合損耗進行了數值分析，並在此基礎上，對s形波導激光器的結構作了初步設計。
  15. Experimental study on heating - induced phase transition of vanadium dioxide thin films irradiated by cw laser

    連續激光輻照下二氧化釩薄膜熱致相變實驗研究
  16. We also show the relationships between the frequency of the external laser fields and the transition of the qubit in the two - qubit conditional geometric quantum phase - shift gate, explaining in detail how the transition of the qubit depends on the the external laser fields and the states of the controlling qubit. we also detail the theoretical ideas which explain how to control effectivly the two - qubit conditional geometric quantum phase - shift gates through external laser fields

    我們得到了外加激光場頻率跟兩量子位條件幾何量子相移門中的量子位躍遷之間的關系，詳細地說明了量子位的躍遷是怎樣依賴于外加激光場和控制量子位的狀態的，從理論上解釋了如何利用外加激光場有效的控制兩量子位條件幾何量子相移門。
  17. It means that the cheap polymers are chosen as the substrates, and a 248nm excimer laser with flexible and automatic characters is selected as a new micro - fabrication technique. the most important problem of continuous - flow pcr chip is the transition length computation of temperature or velosity distribution from inlet to steady status

    隨后針對目前國內外pcr微流控晶元的研究現狀，提出了採用準分子激光微細加工技術在價格便宜、生物兼容性好的聚甲基丙烯酸甲脂材料（ pmma ）上制備pcr微流控晶元的新方法。
  18. Firstly, decoupling theory is applied to analyze multiplicative colored noise in a single mode laser system. steady state intensity distribution function with colored noise is obtained. the first - order - like phase transition driven by multiplicative colored noise is studied and compared with the case of multiplicative white noise

    首先用退耦理論分析了單模激光場中的乘性色噪聲，導出了含有色噪聲的激光場定態強度分佈函數，討論了乘性色噪聲誘導一級相變的條件。
  19. An ophthalmic excimer laser system used to correct wavefront aberration is presented. the conception and zernike representation of wavefront aberration of human eyes recommended by osa are introduced. the connection of wavefront aberration and ablation profile is analyzed and a model for calculating ablation profile to correct wavefront aberration is presented. because the ablation depth on the boundary is nonzero and irregular, we present a model for calculating ablation profile in a transition zone

    深入研究了準分子激光像差矯正系統，採用美國光學大會推薦的像差的定義、像差的zernike多項式表示方法，定量分析zernike多項式表示的像差與角膜切削量的關系，採用主觀式人眼像差儀測量像差，得出了像差矯正的角膜切削模型，並提出了一種採用過渡函數進行邊界切削的方法，用於可調的過渡區切削量的計算，為人眼單色像差的矯正提供了理論基礎。
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