激光相干性 的英文怎麼說
中文拼音 [jīguāngxiānggānxìng]
激光相干性
英文
laser coherence- 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) ...
- 相 : 相Ⅰ名詞1 (相貌; 外貌) looks; appearance 2 (坐、立等的姿態) bearing; posture 3 [物理學] (相位...
- 干 : 干Ⅰ名詞1 (事物的主體或 重要部分) trunk; main part 2 (幹部的簡稱) short for cadre Ⅱ動詞1 (做...
- 性 : Ⅰ名詞1 (性格) nature; character; disposition 2 (性能; 性質) property; quality 3 (性別) sex ...
- 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; ...
- 相干 : 1 (多用於否定句或疑問句) have to do with; be concerned with 2 [物理學] coherent; 相干散射 coher...
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Accordingly, laser light is said to be much more coherent than ordinary light.
所以,我們說激光的相干性比普通光強得多。The high - power semiconductor quantum well ( qw ) laser is a kind of luminescence device with superior performance, it has longe - lived, low threshold current density, high efficiency, high luminosity and excellent monochromatic, coherence, directionality, etc. the high - power semiconductor laser is widely applied to the fields, such as military, industrial machining, communication, information processing, medical treatment, etc. the material ' s epitaxy is the foundation of the whole laser ' s fabricating, and it has important influence on the optics and electricity performance about the laser
大功率半導體量子阱激光器是一種性能優越的發光器件,具有壽命長、閾值電流密度低、效率高、亮度高以及良好的單色性、相干性、方向性等特點,廣泛應用於軍事、工業加工、通信及信息處理、醫療保健等領域。材料的外延生長是整個激光器器件製作的基礎,對器件的光學和電學性能有著重要的影響,生長不出優質的材料體系,獲得高性能的器件就無從談起,因此,材料的外延生長便成為了整個半導體激光器製作過程之中的重中之重。Evolution of the field entropy in the interaction of the two - mode su coherent states field with four - level atom added kerr - like medium
激發相干態光場與級聯型三能級原子相互作用的場熵與場的線性熵演化特性Chapter 5, short but is the core of this paper. the flatter impact shock generated by a homogenized beam by isi with strict image relay, and a round - shaped impact shock generated by isi without strict image relay, is compared. it reveals the importance of isi with strict image relay in planar shock generation
第五章重點介紹了激光產生飛片的實驗,分別給出了利用空間誘導非相干( isi )激光均勻化技術,在有嚴格的像傳遞和沒有嚴格的像傳遞條件下激光驅動飛片產生沖擊波的特徵,表明isi均勻化技術和像傳遞在產生平面沖擊波中的重要性。In order to improve the existing pr adaptive optical heterodyne detection system ( praohds ), a new praohds is proposed based on sppc and mppc coexistence. the experimental study of the system is completed by equal amplitude ar + laser beams, poorly coherent equal amplitude solid - state laser beams and high speed amplitude - modulated solid - state laser beams through distorting media. experimental results indicate that the new system is applicable
為了改進現有的光折變自適應光外差探測系統( praohds ) ,本文利用sppc和mppc同時共存的特性,提出了一種新型的praohds ,並利用ar ~ +等幅激光、相干性較差的固體等幅激光以及固體高速振幅調制激光對新系統進行了畸變光束的自適應光外差探測實驗研究,結果證明了新系統在實際應用中的可行性。A cyclic radial shearing interferometer was used to diagnose the wavefront distortion of a laser system and an lcslm ( liquid crysnd spatial ligh modulator ) was used to control it. some results have been summarized as follows : l. according to the theory of scalar quanity diffeaction and the model of the random gaussian phase screen of low frequency wavefront, the effect of the low frequency wavefront with different rms gradient on the focal spot of a laser beam was studied
本論文在激光光束波前畸變檢測和控制上進行了新的探索,主要就空間相位調制環路徑向剪切干涉儀以及它對波前畸變的檢測和液晶空間光調制器及其對中頻段波前畸變的控制進行了研究,其研究的內容和取得的成果如下:一、根據標量衍射理論,結合低頻波前畸變的高斯隨機位相分佈模型,研究了不同均方根梯度低頻畸變波前對激光光束焦斑聚焦性的影響,並採用描述中頻段波前畸變的功率譜密度概念,模擬計算了它對激光焦斑旁瓣的貢獻。Continuous - wave optical parametric oscillators ( cw opos ) are an attractive source of coherent radiation in applications for which laser sources are unavailable or for which wide tunablity is needed, cw opos have remarkable features of operating with narrow linewidth and broad tunablity
連續波光學參量振蕩器( cwopos )可以用來拓寬激光的波長范圍,有較寬的調諧區域,是一種理想的產生相干輻射的裝置。由於它的窄線寬和寬調諧的輸出特性,也被用於光譜學、相干光通訊、量子光學等領域。On the other hand, various techniques using the dhbs have been applied in optical traps for microscopic particles, guiding, cooling and trapping for neutral atoms as well as in manipulations and control of coherent matter waves ( i. e., bose - einstein condensations ( bec ) ) and so on
同時,其他的一些研究小組開展了暗中空光束在光阱與微粒的操縱、中性原子的激光導引、冷卻與囚禁以及相干物質波(如玻色-愛因斯坦凝聚, bec )的操縱與控制等領域的應用研究。The some fire control system is an advanced multi - senor short range air defense system, which integrated both x and ka bands searching and tracking radars, laser range finder, combined the control computer of subsystem with the master computer, and applied the technology of data fusion
摘要某火控系統集兩個頻率波段的搜索雷達、跟蹤雷達和電視跟蹤器、激光測距機於一體,分系統控制處理計算機與系統主計算機相結合,採用了數據融合技術,是一部多傳感器集成的現代化防空系統,具有搜索性能好、反應時間快、抗干擾能力強、自動化程度高、使用性能好等特點。The effect of atomic coherence has attracted much attention in quantum optics such as lasing without inversion, the enhancement of nonlinear process, the storage of pulse and laser cooling
原子相干效應在無反轉激光、非線性過程的增強、光脈沖存儲以及激光冷卻等量子光學的眾多領域都有潛在的應用價值。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。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。The position errors are measured by two dimension single - frequency laser interferometer, the pitch and yaw errors are tested using phase shifting interferometer with a resolution of 0. 1nm, the linearity along motion axis is investigated by autocollimator with 0. 01 " uncertainty
利用單頻激光干涉儀測試其運動定位誤差特性,相位偏移干涉法測試運動轉角誤差,光電自準儀測試其運動偏擺誤差。In the thesis, firstly, we report the setting up of our laser diode injection locking system. secondly, we analyzed the transient optical nonlinear response in four - level atomic medium induced by quantum interference effect
本文主要介紹半導體激光器注入鎖定系統的研製以及四能級原子量子相干過程中瞬態非線性光學響應的分析。Recent studies have shown that the quantum coherent population trapping, electromagnetically induced transparency, index enhancement without absorption, etc. these new effects have great potential for the control of the coherence properties of a medium, the production of high frequency lasers, the information storage and high precision measurements
最近的研究表明,原子相干產生很多新的效應,如相干布居捕獲、無反轉激光、折射率增強、電磁誘導透明、電磁誘導吸收等。這些新效應對光學介質相干性質的控制、高頻激光的產生、光信息存儲和高度測量等方面具有巨大的應用前景。Recent studies have shown that the quantum coherence and interference have led to a lot of new effects such as coherent population trapping, electromagnetically induced transparency, index enhancement without absorption, etc. these new effects have great potential for the control of the coherence properties of a medium, the production of high frequency lasers, the information storage and high precision measurements
最近的研究表明,原子相干產生許多新效應,如相干布居捕獲、無反轉激光、電磁誘導透明、折射率增強等。這些新效應對光學介質相干性質的控制、高頻激光的產生、光信息存儲和高度測量等方面具有巨大的應用前景。The laser beam treated as a linear reference is used widely in the manufacture and measurement equipments, due to its many advantages, such as high brightness, good directivity, and good coherence etc. but the further improvement of the laser directional stability accuracy is restricted by some factors, such as the environment etc, which restrain the application greatly in the ultra - precision manufacture and measurement equipments
激光光束由於其亮度高、方向性好、相干性好等優點,常被作為直線基準廣泛應用於加工和測量設備中。但由於受環境狀態等因素的影響,制約了激光方向穩定精度的進一步提高,限制了激光在超精密加工和測量設備中的進一步應用。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。The high relativity of lasers limits the actual applications of the holographic technique, they began to probe the forth generation hologram recorded and reconstructed as well by white light
為了克服激光的高度相干性給全息技術的實際使用帶來的種種不便,又繼續探討白光記錄的可能性。The application of laser is developed widely with its four characteristics : high intensity, directionality, monochromaticity and coherence
由於激光的高方向性,高單色性,高相干性等優點,使激光的應用得到了廣泛的發展。分享友人