色相干 的英文怎麼說
中文拼音 [shǎixiānggān]
色相干
英文
chromatic coherent-
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。In the first part of this thesis, the reasons of develop led biology light source have been discussed from the effects of non - concern homochromy light on cells, the mechanisms and non - resonance characters of photobiomodulation on cells, the biological information model of photobiomodulation ( bimp ) of low intensity laser ( lil ) proposed by professor liu tcy
論文的第一章，首先從非相干單色光的細胞生物效應、光生物調節作用機理、光生物調節中非共振作用的特徵、以及生物信息模型（ bimp ）等幾方面，論述和確立了研製led生物光源的理論依據。In section 3, i introduce a new kind of two - mode bosonic realization of su ( 1, 1 ) lie algebra, on the basis of which the two - mode su ( 1, 1 ) coherent states in the two - mode fock space are derived
第三部分引進一種新的雙模su （ 1 ， 1 ）李代數的玻色子算符實現形式，在此基礎上導出了在雙模fock空間上的雙模su （ 1 ， 1 ）相干態。Said the baroness, irritated at the impassibility of her husband ; " do these things concern me
男爵夫人說，她丈夫那種不動聲色的態度惹惱她。 「這與我有何相干？This responsiveness had nothing to do with that flabby impressionability which is dignified under the name of the " creative temperament. " - - it was an extraordinary gift for hope, a romantic readiness such as i have never found in any other person and which it is not likely i shall ever find again
這種敏感和通常美其名曰「創造性氣質」的那種軟綿綿的感受性毫不相干- -它是一種異乎尋常的水葆希望的天賦，一種富於浪漫色彩的敏捷，這是我在別人身上從來發現過的，也是我今後不大可能會再發現的。We study the time evolution law of the atomic response in an open - type inversionless lasing system when the probe or driving field is off - resonance, and compare the law with that obtained when the probe and driving fields are resonant. we find that the detuning has considerable effects on the time evolution law : when the probe or driving fields is off - resonance, the dispersive responses for the probe and driving fields are no longer 0 and the two - photon coherence is no longer a pure real ; the variation of the probe detuning can make the time evolution law of the population distributions and the gain ( absorbtion ) of the driving field changing obviously ; with detuning increasing, the time evolution behavior of the gain ( absorbtion ), dispersion of the probe field and the two - photon coherence will gradually diviate from the evolution law of the standard damped oscillator ; with the driving detuning increasing, the oscillating time of the dispersion of the driving field becomes longer, the amplitude and the stationary value increase
研究了探測場或驅動場失諧情況下開放的型無粒子數反轉激光系統中原子響應的時間演化規律，並與探測場和驅動場都共振時的演化規律進行了比較.我們發現失諧對時間演化規律有顯著的影響;當驅動場或探測場失諧時，原子對探測場和驅動場色散的響應不再為零，雙光子相干不再是純實量;探測場失諧的變化將使粒子布居和驅動場增益（吸收）的時間演化規律明顯改變;隨著失諧的增大，探測場增益（吸收） 、色散和雙光子相干隨時間的演化行為逐漸偏離標準阻尼振子的演化規律;驅動場色散驅動場失諧量的增加而振蕩時間變長，振幅和穩定值變大In section one, we analyze the mechanism of lwi gain, and study the effects of the rabi frequency q of the driving field, the injection rates ratio rb / r ~, the exit rate r0, the decay rates ~ and rab between atomic levels, as well as 3 incoherent pump rate r on the gain without inversion, dispersion and population difference of the system. in section two, we discuss the effects of the detuning of the driving field and the probe field on the gain
在第一節中分析了無粒子數反轉激光增益產生的機制、研究了驅動場的rabi頻率、粒子注入速率比值r _ b / r _ c 、粒子退出速率r _ o 、能級間的自發衰減速率r _ （ c - b ） 、 r _ （ a - b ）和非相干泵浦速率r對增益、色散和粒子數差的影響；第二節討論了驅動場和探測場的失諧對無粒子數反轉激光增益的影響。Nonclassical properties of parabose even andodd coherent states
仲玻色子奇和偶相干態的非經典特性In this paper we investigate the dispersive and absorptive properties of a system of three - level cascade atoms driven by a strong coherent field
本文主要研究了由強相干場驅動的三能級級聯系統的吸收色散關系。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。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。In chapter 4, we study nonlinear theory of the open v - type system with two - color incoherent pump. in this chapter, we discuss the conditions for the onset of lwi and the stability of the system in the limit of strong driving field, and the effect of incoherent pump rate rt on the gain, dispersion and population differences. we also discuss the effect of nonlinearities and the effect of pumping rate threshold of the pumping field
接著第四章討論雙色非相干泵浦系統的非線性理論，分析了強驅動場情況下的lwi產生的條件和穩定性、非相干泵浦速率r ~ 1對增益、色散和粒子數差的影響；討論了該系統的非線性效應和非線性對非相干泵浦速率r ~ 1與r閾值關系的影響。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。In chapter 2, we analyzed the effect of the driving field phase fluctuation on the gain and dispersion and population differences in an open v - type three - level non - inversion lasing system and then discussed the effects of the incoherent pumping rate, the ratio of the atomic injection rates, the atomic exit rate, the rabi frequency of the probe and driving fields and their corresponding detuning on the gain, dispersion and population differences of the system, and got some important conclusions different from those in closed or other open systems
第二章討論了驅動場的相位漲落對開放的v型三能級無反轉激光系統的影響，根據解析解的數值計算結果討論了非相干泵浦速率、粒子注入速率之比、粒子退出速率、探測場和驅動場的rabi頻率和相應失諧對系統增益、色散和粒子數差的影響，得到了一些不同於封閉的v型系統及其他開放的無反轉激光系統的重要結論。Cixin beautiful exquisite agate rings, colorful hue 521, clean and pure and moving
此款美麗精緻的瑪瑙戒指，色彩鮮艷，色相精純，干凈，純情動人An appropriate cost function is constructed which avoids the use of the logarithm likelihood function that is lack of robust to the noise correlation, moreover, our method have many advantages such as, low complexity, suitable for coherence signals, etc
構造適當的代價函數，避免了對數似然函數的使用，該方法對色噪聲協方差矩陣特徵值分散具有穩健性，同時具有較低的計算復雜度和適用於相關甚至相干源等優點。The research interests in this team are nonlinear optics at low light intensities, including photorefractive nonlinear optics ( photorefractive materials, effects and their applications ), optical storage materials, nonvolatile optical recording technology and mechanics with high recording rates, high data density and high data transfer rates, nonlinear dispersive system and the dynamic propagation properties of photons in such dispersive system, and nonlinear optical properties of phasonian systems such as electromegnetically induced transperancy
本實驗室目前從事弱光光學非線性方面的研究：主要包括光折變非線性材料、效應以及應用；超快超高密度光存儲材料、非揮發存儲技術及其機理；非線性色散系統以及光子在非線性色散系統中的傳播動力學；量子相干系綜中的非線性光學性質如電磁感應透明等幾個方面的研究。For the first time, the special integrated applications of multi - disciplines and new technologies are used to study the structure fracture of jurassic sandstone of baigezhuang region in the dissertation. on the basis of abundant fine descriptions of core, the imaging and dip data, the identification informations of fracture with conventional logs, the parameters of seismic attribute, the detected data of fracture with correlative analyses of 3d and the prediction data of the finite element numerical simulation of fracture are inter - testified to qualitatively and quantitatively determine the structure fracture of this area
本文首次在柏各莊地區採用具有特色的多學科新技術綜合應用分析的方法，在大量巖芯裂縫精細描述基礎上，結合成像測井和地層傾角測井新技術，以及利用常規測井技術提供的裂縫識別資料，地震屬性參數、三維數據相干分析檢測裂縫的資料和有限元數值模擬裂縫預測的資料，相互佐證，對柏各莊地區侏羅系砂巖構造裂縫進行了定性、定量研究。According to the principle of correlation detection, an automatic measurement system for extinction ratio of polarizer consisted of monochromator and dsp lock - in amplifier and compurer is designed not only to eliminate the influence on measurement accuracy caused by drift of intensity of light source but also to obatain approximate extinction spectrum
摘要基於相干檢測原理設計了一套由單色儀、數字鎖相放大器和計算機聯合使用的透射式偏光鏡消光比智能化測試實驗系統，採用雙頻雙光路分光單探測器接收鎖相放大器分離信號比對法進行源補償測量，克服了光源光強漂移所帶來的影響；實現了可見光區消光比的精確自動測量，而且可以測得近似的消光光譜。A coherent electromagnetic pulse in the range between the far - infrared and microwave region is used as a detection source. the amplitude of the wave is recorded by electro - optical or photoconductive sampling. after fast fourier transform, the amplitude and phase of the wave is given, then the complex refractive index standing for the absorption and dispersion of the material in thz region is extracted
Thz （ 10 ~ （ 12 ） hz ）時域光譜技術是20世紀90年代發展起來的一種新型的光譜測量技術，它使用頻率介於遠紅外和微波之間的相干電磁輻射脈沖作為探測源，利用電光取樣或光電導取樣的方法直接記錄thz輻射電場的振幅時間波形，通過傅立葉變換得到測量信號振幅和相位的光譜分佈，進而獲得材料在thz波段的復介電常數，即色散及吸收等信息。分享友人