相干光系統 的英文怎麼說
中文拼音 [xiānggānguāngxìtǒng]
相干光系統
英文
coherent light system- 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...
- 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) ...
- 系 : 系動詞(打結; 扣) tie; fasten; do up; button up
- 統 : Ⅰ名詞1 (事物間連續的關系) interconnected system 2 (衣服等的筒狀部分) any tube shaped part of ...
- 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...
- 系統 : 1. (按一定關系組成的同類事物) system 2. (有條理的;有系統的) systematic
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Most laser ultrasonic nondestructive testing systems are based on the heterodyne principle, but the laser ultrasonic nondestructive testing system which is based on the homodyne principle
而且目前所研製的激光超聲無損檢測系統基本上採用外差干涉的方式,而零差干涉方式國內尚未見到有相關報道,這屬于論文的主要創新點。Integrating tynman system with polarized system together, the laser interferometer is compatible for the surface with different reflectance. first, on the basis of synthesizing different interferometric microscope, the author introduced a kind of lase interferometer combining polarized interferometry and real - time phase detection algorithms. first, a kind of optical configuration is introduced, which is realized in the above interferometer
本文在分析了國內外不同干涉顯微系統的基礎上,根據干涉顯微測量方面的需求提出了採用偏振干涉和條紋掃描方式實時檢測波面位相的激光干涉顯微系統,提出了一種可用於表面微觀輪廓及粗糙度參數測量的光學顯微干涉系統的光路,然後介紹了條紋掃描波面位相實時檢測技術以及四步移相法,並在此基礎上完成了光學系統及相關的機械結構。On the other side, we use the method of optical formation process to introduce two fundamental filtering function in frequency domain of coherence system of awg two optical processors are designed, that is optical signal add / minus and phase filter
另一方面,運用光學信息處理方法,我們探討了awg型相干系統頻譜區兩類基本的濾波函數的引入,設計了兩種光信號處理器:光信號加減器以及位相,濾波器。This product usesthe fm radio set code decoding system, has the ultra strongantijamming ability and the extremely low power loss, the reactionrate is keen, the highest synchronous speed amounts to for 1 1, 000second, can satisfy photographic camera of each kind of type shuttersynchronized flash photography request
該產品採用調頻無線電編碼解碼系統,有超強的抗干擾能力和極低的功耗,反應速度靈敏,最高同步速度達1 1000秒,能滿足各種類型快門之照相機的同步閃光拍攝要求。The multi - pass amplifier was being adopted proverbially, which could improve the output energy consumedly. but on the other hand the beam quality was degraded by the severe wave - front ' s aberration that exacerbated by multi - passing the beam through the amplifier
多程放大系統因能夠較大提高系統的輸出能力,故得到較為廣泛的應用;但由於多程放大級各類波前誤差的相干疊加,使系統輸出激光的波前發生比較嚴重的畸變,導致光束質量的下降。The main results of this thesis can be summarized as follows : 1. based on the huygens - fresnel principle, we have derived the propagation expressions of the partially coherent beams passing through an annular lens optical system. the influence of the spectral degree of coherence, fresnel number and truncated parameter on the focused intensity distribution and focal shift is analyzed
主要工作包括: 1 .從惠更斯-菲涅耳原理出發,推導了部分相干光束通過環形透鏡系統的傳輸公式,分析了空間相干度、菲涅耳數、攔截系數對系統中光束的聚焦光強和焦移的影響。The basics of lithography process, as well as the basic structure of lithographic system and the basic theory of partially coherent imaging are introduced in this paper. a bi - linear model of optical imaging is also presented. based on these theories, the simulation process of csplat is particularly analyzed, especially the computation of tccs ( transmission cross coefficient ) under different illuminations and the processing of primary lens aberrations inside tcc computation process
本文從光刻基本過程入手,介紹了光刻機光學系統的基本組成、部分相干光透射成像的基本原理,提出了光學系統的雙線性模型,並在此基礎上詳細分析了模擬軟體splat的模擬過程,其中著重分析了光學系統的傳輸交叉系數tcc的計算,包括不同照明系統下tcc的計算以及tcc計算中像差的處理。Based on the theories of non - diffracting imaging system in coherent light, the measurement system of point spread function ( psf ) of non - diffracting imaging system has been presented
摘要在分析相干光照明下無衍射成像系統理論的基礎上,設計了無衍射光成像系統的點擴散函數的測量系統。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 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。The form of the psf has been deduced according to the fresnel diffraction, and it has been analyzed that the frings density of the psf depends on the axicon ' s refracting angle and the distance l between the point light source to lens l2
利用菲涅耳衍射理論,推導出相干光照明下無衍射系統的點擴散函數( psf )的形式,並分析出點擴散函數的條紋疏密與錐鏡的夾角和點光源的位置有關。When the two - dimensional decoupling theory is applied to a single - mode laser system, it is shown that there is relatively large fluctuation in the phase when the laser undergoes from thermal light to coherent light. it is shown that increasing the noise correlation time t can also reduce the fluctuation in the phase of the laser light
將二維退耦理論應用到單模染料激光系統中時,我們還發現,當系統運行在從熱光場到相干光場的過渡過程中時,系統的位相存在相對較大的漲落,增加噪聲關聯時間可以抑制激光場的位相漲落。A mathematical model based on fourier optics is developed to analyze the digital recording mechanism and properties of the in - line phase - shifting digital holographic system in comparison with those of the commonly used off - axis arrangement. theoretical analysis demonstrate that in - line configuration is advantageous in enhancing the system performance
第三章將同軸相移數字全息記錄與再現過程等效成一個相干光學成像過程,基於傅里葉光學理論對其成像特性進行系統的理論分析。The main results and creative points in the dissertation were as follows : a ) by means of studying on the fiber - optic hydrophones ’ tdm array based on phase generated carrier ( pgc ) demodulation with laser frequency modulation, the mathematic models were set up, used for theoretical analyses of noncoherent crosstalks in the system using low coherent laser and coherent crosstalks in the system using high coherent laser. the formulas calculating crosstalks were given, and the method measuring crosstalks was shown definitely
本論文的主要研究結果和創新在於: 1 、通過對基於光頻調制pgc (相位生成載波)解調光纖水聽器時分復用系統的研究,針對低相干光源的串擾強度迭加和高相干光源串擾的相干迭加,建立了理論分析的數學模型,得出了計算串擾的公式,明確了測試系統串擾的方法。Optical spatial filtering is the based operation on oip and the foundation of high - pass, low - pass, band - pass, edge - enhance and feature distinguishing. this simulation experiments system includes special filtering experiments when the input image is one - dimension grating, two - dimension grating or general image
以4f相干光學成像理論為基礎,本模擬實驗系統給出了一維黑白光柵的空間濾波、網格和非周期性結構輸入物的空間濾波等模擬實驗。A collimating device is also designed in this paper, and the collimating coherent light is good proved by the followed experiments. the robot vision system ' s object reading experiment is also finished in this paper, all these proved that this novel robot vision system is feasible
本文設計出用於半導體激光器的擴束準直機構,並成功獲得實驗所需的準直相干光,本文還成功完成了機器人視覺系統目標讀取部分的實驗。This thesis describes a all fiber optic accelerometer based on t - g double beam interferometer, the whole system include a coherent source whose wavelength is 1310nm, a flexural optic fiber disk act as sensing unit, photodetector, piezoelectric ceramic act as a phase modulator and signal processing circuit. the all fiber optic accelerometer described in the paper has many desirable engineering features which include : broad frequency response ; high sensitivity to measurands ; antielectromagnetic interference and small size
本課題研究的是一種基於泰曼-格林( t - g )雙光束干涉儀原理的光纖加速度計,系統主要包括:中心波長為1 . 31 m的ld相干光源、起傳感作用的光纖柔性盤、光探測器( pin ) 、相位調制用的壓電陶瓷以及信號處理系統。The theory model and experiment research about optical polarization noise in the coherent fiber communication system
相干光通信系統偏振噪聲的理論模型和實驗研究It proves that the laser diode driver designed in this paper can work under our satisfaction and it can be applied in vision system of robots as a very good interfered light source
該半導體激光器驅動電源可以提供一種非常穩定的高質量的相干光源,在機器人視覺系統、通信以及測量等領域將會得到廣泛的應用。2. according to the huygens - fresnel principle, we have derived the propagation expressions of the partially coherent beams passing through dual - focus optical systems and investigated the phenomenon of focal switches of the partially coherent
2 .從惠更斯-菲涅耳原理出發,推導了部分相干光束通過雙焦聚焦透鏡系統的傳輸公式,研究了部分相干光束聚焦的焦開關現象。分享友人