激光轉換效率 的英文怎麼說

中文拼音 [jīguāngzhuǎnhuànxiàolǜ]
激光轉換效率 英文
laser conversion efficiency
  • 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） ...
  • 轉 : 轉構詞成分。
  • 換 : 動詞1. （給人東西同時從他那裡取得別的東西） exchange; barter; trade 2. （變換; 更換） change 3. （兌換） exchange; cash
  • 效 : Ⅰ名詞（效果; 功用） effect; efficiency; result Ⅱ動詞1 （仿效） imitate; follow the example of 2 ...
  • 率 : 率名詞（比值） rate; ratio; proportion
  • 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; ...
  • 轉換 : change; transform; convert; switch
  • 效率 : productiveness; efficiency; productivity; workpiece ratio
  1. Abstract : the far - field spot characteristics of laser converted by random phase plate are analyzed theoretically, including the shape, size, rotational symmetry and diffractive efficiency of the spots, as well as the distribution of subsidiary spot. by comparing the influence of phase element shape ( triangular, square and hexagonal ) on the characteristics, we found that the random phase plate with hexagonal array structure is more suitable for the beam smoothing in laser fusion

    文摘:從理論上分析了激光經隨機位相板變換后在遠場的光斑特性（包括光斑的形狀、大小、旋轉對稱性、衍射效率以及旁瓣分佈） ，通過比較三種形狀位相元（等邊三角形、正方形和正六邊形）的遠場光斑特性，得知正六邊形位相元結構的隨機位相板更適合於激光聚變中的束勻化。
  2. The linear and nonlinear optical properties of these compounds have been systematically studied. the following parts are included in this thesis : one - photon and two - photon fluorescence ; upconversion superradiance and cavity lasing properties ; the optical power limiting effect of these compounds ; and so on. tpa absorption coefficients have been got by z - scan method

    3 、系統研究了它們的線性和非線性光學性質，主要包括：單、雙光子熒光，上轉換超輻射和腔激射性能及其效率，光限幅效應，用z - scan的方法得到了其雙光子吸收截面。
  3. Abstract : in view of the crystal structure, this paper repo rts thecharacter of single crystal growth of germanate and the properties as me dium of laser crystal. the study and progress in germanate crystals used as widel y tunable laser crystal, self - doubling - frequency crystal and highly efficient and low pumping threshold laser crystal are introduced

    文摘:從晶體結構上分析了鍺酸鹽的單晶生長和作為激光晶體基質的特點，並介紹了鍺酸鹽作為可調諧激光晶體，自倍頻晶體，高轉換效率和低泵浦閾值的激光晶體的研究及進展。
  4. 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。
  5. At present, people usually use birefrigence and quasi - phase - matching methods to achieve higher effiency in the process of conversion. a significant advantage of quasi - phase - matching method is that the interaction is occurred through the largest element of the x ( 2 ) tensor ; the period of optical superlattice can be designed randomly, and any interaction can be matched without walk - off angle ; they are fitted to be used in frequency conversion of lower power especially. the quasi - phase - matching method has some advantages over birefrigence method, improving the efficiency of frequency conversion ; the range of frequency conversion covers its whole transperant wavelength

    由於準相位匹配技術有其獨特的優勢，可以利用非線性光學晶體的最大二階極化張量，如ppln 、 pplt 、 ppktp用的非線性極化張量都是d _ （ 33 ） ，其有效非線性系數高出普通非線性光學介質（如bbo 、 lbo 、 ktp ）一個數量級，而且可以人為靈活設計調制周期，通過周期設計其頻率變換范圍可以覆蓋準相位匹配介質的整個透明波段，選擇無走離效應，解決了常規pm難以解決的問題，拓寬了非線性晶體的應用范圍，極大地提高了頻率轉換效率，已成為非線性光學材料和固體激光器的研究熱點之一。
  6. Laser diode ( ld ) has the advantages of small volume, light weight, longevity of service, high electro - optic convert efficiency and direct modulate etc. now it is more widely used in the fields of information, energy, therapeutic, material, entrainment and so on

    半導體激光器（以下簡稱ld ）具有體積小、重量輕、壽命長、電光轉換效率高、可直接調制等優點，目前在信息、能源、醫療、材料、娛樂等諸多領域都得到了越來越廣泛的應用，材料和器件的水平也有了長足的進展。
  7. In this paper, we study inversionless lasing of frequency up - conversion in an open v - type system with incoherent pump. making theoretical analysis and numerical calculation by density - matrix equations of motion, we derive the conditions for the onset of lwi and discuss the effects of the parameters of the system, the detuning of driving field and probe field on the gain, and discuss nonlinear effect in the frequency up - conversion regime. we also give stability and transient analysis

    本論文研究了具有非相干泵浦的開放v型系統頻率上轉換無粒子數反轉激光，利用密度矩陣運動方程，通過理論分析和數值計算，得出該系統產生無粒子數反轉激光的條件，討論系統各參數的變化和驅動場與探測場的失諧對激光增益、色散和粒子數差的影響，還討論了頻率上轉換區域的非線性效應，分析了增益的穩定性及系統的瞬態演化過程。
  8. How to improve the output energy and beam quality were two most noteworthy problems in the building of high power solid - state laser facility

    提高系統能量轉換效率與輸出光束質量一直是研製高功率固體激光系統極為關注的兩類重要問題。
  9. Based on these foundations, we give a perfect scheme of the bbo opos : single pass amplification coefficient of the opg under different pump intensity is calculated ; collinear type - i and type - ii phase matching tuning curve pumped by the q switch nd : yag various harmonics as well as noncollinear type - i tuning curve are calculated in details ; the effect of the walkoff for the nonlinear effect coefficient and the group velocity matching are analyzed ; the acceptance angle in parametric process is calculated ; the numerical threshold of the bbo opo is calculated ; the process of the saturation and depletion of the pump beam are analyzed ; the relationship of the conversion efficiency and reflectance of output mirror are discussed ; various linewidth controlling methods are discussed ; the improvement of the beam quality applying the unstable cavity is discussed ; and the crystal bbo design is considered

    在此基礎上，給出了一整套bbo - opo激光參數設計方案：計算了不同泵浦強度下的參量放大倍數；詳細計算了在nd : yag調q激光器各次諧波泵浦條件下的共線類和類相位匹配的調諧曲線，以及非共線類相位匹配調諧曲線；分析了走離角對非線性系數和群速匹配的影響；計算了參量過程的允許角；計算了bbo - opo的理論閾值條件；分析了飽和與泵浦光束的消耗過程；給出了轉換效率與超過泵浦閾值的倍數的關系；討論了轉換效率與輸出鏡反射率的關系；討論了線寬控制的各種方法；研究了利用非穩腔改善光束質量的方法；考慮了bbo晶體的設計。
  10. Compared to gan, which is one of the most successful wide - band semiconductor materials at present, zno is promising : high - quality zno with very low defect densities can be synthesized at much lower temperature than gan ; zno can emits light with shorter wavelength than blue light emission from gan ; zno has higher excitonic binding energy ( ~ 60mev for zno, 25mev for gan ), which promises strong photoluminescence from bound excitonic emissions at room temperature ; meanwhile, homogeneous bulk zno is available

    和gan相比， zno薄膜具有生長溫度低，激子復合能高（ zno ： 60mev ， gan ： 21 25mev ） ，受激輻射閾值較低，能量轉換效率很高等優點。有可能實現室溫下較強的紫外受激發射，制備出性能較好的探測器、發光二極體和激光二極體等光電子器件。
  11. This paper also presents a theoretical analyzing method for the instantaneous simulation of pulsed - preionization discharge by using pspice software, it is favorable to the optimal design of the laser discharge circuit

    獲得的最大的電光轉換效率達19 。本文還發展了一種採用pspice軟體對脈沖預電離放電進行瞬態模擬的理論分析方法，有利於激光器放電電路的優化設計。
  12. Laser diode pumped solid - state laser ( dpssl ) is an important branch in laser field. continuous wave and pulse operation, q - switching and mode - locking operation have been achieved for dpssl which have a lot of uses in the field of medicine, process and so on

    Ld泵浦的全固態激光器（ laserdiodepumpedsolid - statelaser或dpssl ）是激光技術領域的一個重要分支，與傳統激光器相比在重量、體積、電?光轉換效率、使用壽命和穩定性方面更具優越性。
  13. In the field of fundamental research, such as quantum optics, blue light can be used as a pump source of optical parametric oscillator ( opo ) to generate the neoclassical light fields around wavelength of 860nm, which can be detected with 99. 9 % of quantum efficiency, the highest efficiency in the measurement of neoclassical light as known yet it is also possible to generate the squeezed vacuum state at 852nm, which is the resonance wavelength of the transition line d2 of cesium atoms and can be supposed to investigate the properties of atomic radiation in the interaction between atoms and quantum state of light fields

    在量子光學中，該藍光作為下轉換的泵浦源，可以產生860nm非經典光場，其探測效率可達99 . 9 ，高於目前產生的其他任何波段的非經典光場。同時通過溫度調諧，可望產生與銫原子d2線作用的852nm波段的壓縮真空態，從而開展非經典光場與冷原子的相互作用等方面的實驗研究。本文主要通過knbo _ 3晶體外腔諧振倍頻技術來產生藍色激光光源。
  14. The method for third harmonic generation of large - aperture high - power solid laser is described which is the second nonlinear effect of two cascade crystals in this paper

    摘要敘述了大口徑高功率固體激光器，利用兩塊級聯晶體的二階非線性效應，對激光輸出進行諧波轉換，實現三次諧波輸出的方法。
  15. The frequency conversion technique applied universally in the field of solid - state laser is studied : the second harmonic wave theory on the base of the coupled wave theory. the effect of phase - matching upon conversion efficiency is mainly analyzed

    本章還分析了固體激光領域普遍採用的頻率變換技術：建立在耦合波理論上的二次諧波理論，重點分析了相位匹配對轉換效率的影響。
  16. In contrast to pulsed discharge without preionization, the working voltage of the laser falls about 20 % and the electro - optical efficiency is improved approximately 30 %

    和無預電離的脈沖放電相比，激光器的工作電壓下降了大約20 ，電光轉換效率提高了大約30 。
  17. In this dissertation the operation mechanism of pulsed - preionization diffusive cooling co _ 2, laser is studied. pulsed preionization technology is put forward to improve the stability of discharge, decrease the operating voltage, and enhance the electro - optical efficiency

    本文研究了脈沖預電離的擴散冷卻co _ 2激光器的運轉機理，提出採用脈沖預電離技術改善縱向脈沖放電的穩定性、降低工作電壓和提高電光轉換效率。
  18. The laser power not only makes the co2 laser tube starting easily, gives the full scope to the function of it, but also improves the radiation efficiency, prolongs the service life of laser tube and laser power supply

    本電源可使二氧化碳激光器啟輝容易、使二氧化碳激光器的性能得到充分發揮，轉換效率提高，延長激光器的壽命。
  19. Laser interaction with target is simulated according to the model and methods given above, the state of laser plasma and x - ray transform coefficient are obtained. the effect of laser intensity and the wavelength on the state of laser plasma and x - ray transform coefficient is also presented

    本文用上述模型和方法進行了大量計算，給出了激光-靶相互作用過程的物理圖像，激光產生的等離子體狀態， x光的轉換效率等，並給出了不同的激光波長和強度對等離子體狀態和x -射線的轉換效率的影響。
  20. The application fields of high - power semiconductor laser diodes ( lds ) are wider and wider due to their unique advantages such as small in size, low power consumption, high electric to optical energy converting efficiency and cheap in cost, which couldn ’ t be competitive by other forms of lasers, results in their more and more important role for society, economics, military and human ’ s daily - life

    大功率半導體激光器（ ld ， laserdiode ）因體積小、功耗低、轉換效率高而且價格便宜等其他類型的激光器所無法比擬的優勢，應用領域越來越寬廣，對社會、經濟、國防和百姓日常生活影響越來越大。
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