thz thz 中文意思是什麼

thz thz 解釋
價急問
  1. Applications of photoconductive switches in uwb and thz

    技術中的應用
  2. Temporal characterization of thz pulses generated by large aperture photoconductive antennas

    大孔徑光電導天線產生的太赫茲脈沖時間特性研究
  3. 6 ) the self - absorption of thz waves in doped zn0. 95cd005te < 110 > crystals is the main factor which affects the generation efficiency of thz waves

    對于不同摻雜的zll095cd005te 110單晶，晶體產生thz輻射效率不同的主要原因是晶體對thz輻射的吸收不同。
  4. The observation reconfirms that introduction of a small amount of cd ( 3 % - 5 % ) into znte can significantly improve the crystal quality and enhances the generation efficiency of thz waves

    這說明在znte晶體中少量刁加入cd ，能夠提高znte晶體生長的質量，降低晶體對thz輻射的吸收，提高晶體產生t 』 hz輻射的效率。
  5. Effective generation of thz wave is a basic issue in experiments evolving thz radiation. scientists have studied different electro - optic crystals as a thz waves emitter, and they found that the znte crystal is the best for thz wave generation

    國際上，許多科學家對大量電光晶體產生和探測thz輻射進行了研究，發現znte電光晶體作為thz脈沖產生和探測材料，其總體性能優于其他電光晶體，目前在thz輻射實驗中應用得最廣泛。
  6. 5 ) optical rectification in a set of doped zn0. 95cd0. 05te < 110 > crystals show an increasing efficiency of thz beam generation with the increasing crystal resistivity, but the efficiency saturates and descended when the doped crystal resistivity goes beyond 106 o - m

    Teq10單晶，當晶體的電阻率較大時…入0 『 q ， cmx晶體產生的thz輻射信號逐漸增大。當晶體的電阻率p 106qcm時，晶體產生thz輻射的效率達到飽和甚至可能下降。
  7. Our results explain the mechanisms of the composition and doping dependent thz radiation efficiency for the different crystals. experimental results in this thesis are useful for growing eo crystals with high performance, and suggest that more parameters are required for better characterization of this kind of crystals as thz wave emitters. the main results and conclusions are listed as follows : 1 ) experimental measurements with low cd composition zn1 - xcdxte < 110 > crystals ( 0 < x < 0. 25 ) as thz emitters indicate the optimum composition of x = 0. 05

    在國際上，我們首次用實驗研究了不同組分、不同摻雜的zn _ （ 1 - x ） cd _ xte < 110 >單晶（ x = 0 0 . 25 ）對thz輻射的吸收情況和它們產生thz輻射的相位匹配情況，並首次從晶體對thz輻射的吸收和晶體的相位匹配角度解釋了這些晶體產生thz輻射效率不同的原因。
  8. In this thesis, we study the thz pulse generation efficiency of the < 110 > - oriented zn1 - xcdxte crystals with various composition ratios and doping levels, using thz time - domain spectroscopy. it is found that both absorption and phase matching condition play important role. it is the first time to systematically study < 110 > - oriented zn1 - xcdxte crystals with various composition ratios and different doping levels using thz time - domain spectroscopy

    本論文中，我們利用thz時域光譜系統對不同組分、不同摻雜的zn _ （ 1 - x ） cd _ xte < 110 >單晶（ x = 0 0 . 25 ）作為thz輻射材料的性能和光譜響應進行了研究，發現晶體對thz輻射的吸收和晶體的相位匹配是影響晶體產生thz輻射效率的重要因素。
  9. 4. using ttds measurement and analysis, the characteristic of mixed crystal hgcdte and zncdte in thz region is analyzed

    四、利用thz波段時域光譜測量和分析方法，第一次得到了混晶hgcdte 、 zncdte在0
  10. In the last decade, rapid progress in ultrafast laser technology provides a steady and reliable optical source for the terahertz ( thz ) pulses generation, which greatly promotes the research in the thz waveband that is difficult to access before

    近十幾年來，超快激光技術的迅速發展為thz輻射的產生提供了穩定、可靠的激發光源，使thz輻射的研究得到了蓬勃發展。
  11. Research on superconducting josephson array oscillator, a national nature science fund subject, investigates a high property thz oscillate source with wide potential applications in many areas, such as aerospace, universal detection and object recognition

    超導約瑟夫森結陣列振蕩器是國家自然科學基金項目，這種振蕩器是一種具有廣闊應用前景的高性能thz振蕩源。這種器件在航空航天、天文探測、地球衛星遙感、衛星地面目標識別以及醫療診斷上均有著極為廣闊的前景。
  12. By simulating of transient field in the photoconductor of thz photoconductive antenna, the curve of instant electric current was given here, and the result was validated by fdtd method. the influence of transient field to thz out put was mentioned in this paper too

    通過對thz光電導天線中瞬態電場的模擬，得到了晶元內瞬西安理工大學碩士學位論文態電流的變化曲線，並通過fdtd方法對瞬態電流模擬結果進行了驗證。
  13. 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。
  14. The experiment results are valuable to the research of infrared lens, laser window, integrated optical device, the device for blue semiconductor laser, optical detector, nonlinear device, optical waveguide, thz emitter and other devices the following is a brief summary of the works conducted in this thesis and the results achieved

    實驗結果有助於這些材料作為紅外透鏡、激光窗口、集成光學器件，藍光半導體激光器件、光探測器件、非線性光學器件、波導調制器件、 thz發射器件等的研究。
  15. Secondly, basing on the theory of on - off gain of small signal, the raman gain coefficient for frequency shift between 0. 5 and 20 thz of standard sigle mode optical fiber is measured by pump - probe method through a super luminescent diode ( sld ) as a broadband small signal probe source. thirdly, numerical simulation analysis of gain characteristic of raman fiber amplifier for c band wdm signal light is made according to the raman gain coefficient of the fiber measured before through target and four rank runge - kutta method. at the invariability of wavelength and maximum power of each of two pumps, schematic of powers of two pumps for best flatness on c band wdm optical gain was found out, at the same time, the factors of resulting in gain saturation is analyzed, too

    本文首先應用經典的電磁理論對拉曼光纖放大器的工作機制進行了分析，然後，根據小信號理論推導出的開關增益求出了光纖拉曼增益系數的表達式，採用泵浦-探測波的方法，利用超輻射激光二極體（ superluminescentdiode簡稱sld ）作為探測光源，測量了所用標準單模光纖頻移為0 . 5 - 20thz的拉曼增益系數，之後根據所測得的光纖的拉曼增益系數譜對應用該類光纖構成的放大c波段wdm光信號的拉曼光纖放大器的增益特性採用打靶法和四階龍格- - -庫塔進行了數值計算，在給定了兩個泵浦光源的波長和最大功率后，找出了反向泵浦情況下使c波段wdm光源增益最平坦的兩個泵浦的各自最佳功率，同時也分析了導致信號光飽和的原因。
  16. Thz radiation generated from a si3n4 covered gaas photoconductive dipole antenna is investigated in the paper

    分析了瞬態電場對thz偶極天線輻射的影響。
  17. Therefore, the phase matching condition in the < 110 > - oriented zn1 - xcdxte crystals is the key factor which affects the generation efficiency of thz waves

    因此，晶體的相位匹配性能是影響其作為thz輻射源的主要因素。
  18. 3 ) the phase matching condition in the < 110 > - oriented zn1 - xcdxte crystal with x = 0 is the best, but the average transmittance of thz wave in the crystal is lower. as a result, its generation efficiency of thz waves is not the best

    對于不同組分的zfll人dxte叫單晶，當x二0時，其相位匹配性能最好，但其對thz輻射的透過率較差，使它產生thz輻射的效率不是最好。
  19. 4 ) the thz resistivity of doped zn0. 95cd0. 05te < 110 > crystals changes with different doping following the similar way as the dc resistivity, which results in different thz wave generation efficiency

    對于有摻雜的zn吧人內。 p 11o單晶，通過不同摻雜可以改變zn95cd ste叫單晶的電阻率，從而改變樣品產生thz輻射的效率。
  20. Comparing with uncovered antennas with the same gap size, the covered antenna has higher breakdown voltage at the same optical exciting power, and it ' s thz out put is 1. 5 times of uncovered antenna

    與未鈍化的光電導偶極天線相比， si3n ;鈍化過的光電導偶極天線耐壓能力顯著提高，其輻射功率約為未鈍化天線的1 . 5倍。
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