coherent beam 中文意思是什麼

coherent beam 解釋
相干光束
  • coherent : adj. 1. 緊密地結合著的；凝聚性的。2. （話等）有條理的，首尾一貫的；一致的。3. 【光學】相干的，相參的。
  • beam : n 1 梁，棟梁，桁條；（船的）橫梁。2 船幅；（動物、人的）體幅。3 （秤）桿，杠桿，（織機的）卷軸，...
  1. It has been shown that when the partially coherent beams propagate in the atmosphere, it may be less affected by turbulence than are fully coherent ones. moreover in laser fusion a highly coherent beam is transformed into a partially coherent beam, for reducing the speckle and for getting more smooth focused spot

    例如，部分相干光在大氣中傳輸時所受大氣騷動的影響要比完全相干光小得多;並且部分相干光束具有光強比較均勻，對散斑低靈敏等優點而被應用於激光核聚變等領域。
  2. This is due to the fact that laser beams with a flat - top profile or other kinds of profiles are desired in various applications, such as in the applications of laser fusion, laser heat treatment and optical data processing etc. nevertheless most of study on the beam shaping is concentrated on the beam shaping of spatially completely coherent beams

    光束整形之所以熱門，是因為這些特殊形式的光束可應用於激光光學及生物醫學等領域。例如，平頂光束可應用於激光核聚變、激光熱處理等領域。然而，研究者對部分相干光的光束整形的研究還很少。
  3. The registers and players all use some kind of photocell, but what is more interesting from an einsteinian perspective is the red beam of coherent light they shoot

    結帳櫃?及隨身聽都用到某種型式的光電池，但是從愛因斯坦的觀點來看，更有趣的是它們所射出來的紅色同調光束。
  4. Based on the above theory and methods, the main works of this thesis are lasted as follows : starting from the propagation law of partial coherent light and beam coherence - polarization ( bcp ) matrix approach, the properties of pgsm beams through both an axis - symmetric paraxial optical abcd system and an axis - unsymmetric one are studied. the analytical propagation equations of pgsm beams are derived, which enable us to study the propagation - induced polarization changes and irradiance distributions of pgsm beams through an axis - symmetric paraxial optical abcd system and an axis - unsymmetric one

    在此基礎上，本文進行的主要工作有：基於空間-時間域中互強度的傳輸理論和bcp矩陣處理方法，首次研究了pgsm光束通過對稱和非對稱abcd光學系統和光闌的傳輸變換特性，推導出了pgsm光束傳輸表達式，可以對pgsm光束偏振和光強的傳輸變化進行分析。
  5. Finally several beam models for the partially coherent beam are introduced, which include gsm beam, polychromatic vector gsm beam and partially polarized gaussian schell - model ( pgsm ) beam et al

    闡述了描述部分相干光束的數學-物理模型，包括高斯-謝爾模型（ gsm ）光束、多色矢量高斯-謝爾模型光束和準單色矢量高斯-謝爾模型光束即準單色部分偏振高斯-謝爾模型（ pgsm ）光束。
  6. ( 4 ) light - induced scattering in sbn : 61 : cr crystals under applied fields and its suppression are studied. a new method is proposed that the scattering light can be suppressed through erasure of scattering gratings by higher power pump beam ( coherent or incoherent )

    （ 4 ）討論了sbn 61 cr晶體在外加直流電場作用下的光感應光散射現象及其消除方法，提出通過引入另外一束相對高強度的光束（相干或者非相干） ，利用其對散射光柵的擦除作用消除信號光束的散射。
  7. Direction of arrival estimation of wide band sources with small array based on beam - space coherent signal - subspace method

    基於波束域相干信號子空間法的寬帶源小尺度基陣定向
  8. Laser - diode end - pumped solid - state laser has many advantages, including high efficiency, good beam quality, high frequency stability, narrow line width, long lifetime, compact configuration, convenient for using et al. especially, single - frequency solid - state laser sources are required for many fields of fundamental research and scientific application, such as gravity - wave detection, coherent laser radar, coherent communication and fiber sensing

    激光二極體泵浦的固體激光器具有全固態、小型化、效率高、使用方便等優點而受大家的廣泛關注，尤其是實現單頻運轉的全固態激光器以其優良的頻率特性和輸出功率穩定性可廣泛應用在相干信息處理、頻率計量、量子光學、引力波測量和量子信息等研究領域。
  9. Moreover a novel approach to fabricate array of three - dimensional waveguides in pr crystals employing illuminations of a pair of mutually coherent or incoherent two - beam interference fields is proposed

    並提出了利用一個雙光束干涉場以不同的角度兩次輻照晶體，在光折變晶體中寫入不同通道波導陣列結構的方法。
  10. Besides, high power laser beam with the multi - transverse mode can be described by partially coherent beams

    此外，多橫模的高功率激光光束可用部分相干光束來描述。
  11. Chapter 4 : applying the definitions of the generalized second and fourth order moments, the beam propagation m2 - factor and the kurtosis parameter of coherent and incoherent combinations of two - dimensional off - axis elegant hermite - gaussian ( ehg ) beams are derived analytically and numerically. and the power in bucket ( pib ) is also presented numerically. our results illustrate the propagation properties of the beam through a first - order optical abcd system

    第四章：討論了相干和非相干離軸完美厄密高斯（ eleganthermitegaussian （ ehg ） ）光束組的傳輸特性，通過解析推導和數值模擬，研究了相干和非相干的離軸ehg光束組的傳輸，得出並比較了相干和非相干的離軸ehg光束組的光束質量因子、陡峭度和筒內的功率（ powerinbucket ） 。
  12. Chapter 4 : the paraxial propagation of partially coherent beams with the hermite - gaussian mode is investigated. the more generalized and simple expressions of the mean squared width and the beam quality factor of the beam with different mode order are obtained in terms of the cross - spectral density. our re - sults show that the higher order strengthens the variations of the mean beam width and the beam quality factor for partially coherent beams, and the relation between the two parameters of partially coherent beams is independent of the coherence length

    第四章：初步探索了部分相干厄米高斯光的傍軸傳輸，根據交叉光譜密度得到了其不同模階數的平均光束束寬和光束質量因子更一般的解析表達式，較高的模階數使得光束展寬得越快，光束質量變差，且這兩個光束參量的關系與部分相干厄米高斯光的相干長度無關。
  13. In the paper some newly developed technologies on all - fiber coherent beam combining are introduced. theoretial explanation of injection locking is given based on the simulation

    摘要全面介紹了光纖激光器相干組束技術的發展現狀，對注入鎖定現象給出了相應的理論解釋。
  14. It has been pointed out that, to meet some requirements in practical applications, the partially coherent flattened gaussian beam is a suitable choice, which can be realized by using the superposition of partially coherent finite laguerre - gaussian modes or hermite - gaussian modes

    提出了用有限個拉蓋爾高斯模或厄米高斯模的部分相干迭加來產生部分相干平頂高斯光束，以滿足某些實際應用要求的新方法。
  15. These novel atom sources are based on bose - einstein condensates ( bec ) from which a coherent matter wave beam is extracted, which have coherence, monochrome and high direction

    這種在玻色-愛因斯坦凝聚（ bec ）的基礎上產生的新型激光器，具有和以往的光子激光類似的特徵：單色性、相干性和方向性。
  16. The analysis has proved that fiber laser through coherent beam combination must be necessary for the future airborne soft killing high power laser source

    分析表明相干組束光纖激光器是未來機載軟殺傷高功率光源的必然選擇。
  17. Coherent beam amplifier

    相干光束放大器
  18. A device which transmits an extremely narrow and coherent beam of electromagnetic energy in the visible light spectrum

    一種能夠發射可見光譜電磁能的極細的相干光束的裝置。
  19. Since the emergence of laser, the transmission and the focusing of spatially completely coherent beam have been studied extensively

    自從激光產生以來，人們對完全相干光束的傳輸及聚焦特性已經進行了廣泛的研究。
  20. The principle of double cladding fiber laser is analyzed, simply illustrated the principle and drawbacks of noncoherent beam combination, the coherent beam combination method of multiple optical power amplifier and its advantages are discussed in detail

    分析了雙包層光纖激光器的工作原理，簡單介紹了非相干組束的原理和缺陷，重點闡述了並聯主振蕩相干組束方法及相干組束的優勢。
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