準相位匹配 的英文怎麼說

中文拼音 [zhǔnxiāngwèipīpèi]
準相位匹配 英文
quasi-phase-matching
  • 準 : Ⅰ名詞1 （標準） standard; guideline; criterion; norm 2 （目標） aim; target Ⅱ動詞1 （依據; 依照）...
  • 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...
  • 位 : Ⅰ名詞1 （所在或所佔的地方） place; location 2 （職位; 地位） position; post; status 3 （特指皇帝...
  • 匹 : Ⅰ動詞（比得上; 相當; 相配） be equal to; be a match for Ⅱ形容詞（單獨） lone Ⅲ量詞1. （用於馬、騾等） 2. （用於整卷的綢或布）
  • 配 : Ⅰ動詞1 （兩性結合） join in marriage 2 （使動物交配） mate （animals） 3 （按適當的標準或比例加以...
  • 相位 : phase position; phase
  • 匹配 : 1. [書面語] （婚姻配合） mate; marry 2. [電學] matching
  1. The near - stoichiometri litao3 has excellent speciality, such as high efficient conversion, tune conveniency, biger size and high damnify value etc. in this dissertation, the theory of quasi - phase - matched ( qpm ) technology and optical parametric oscillation ( opo ) was expatiated and studied first

    近化學計量比litao3 （ slt ）晶體在做參量振蕩方面具有轉換效率高、調諧方便、尺寸大、損傷閾值高等非常好的特性。本文首先對準相位匹配技術和光學參量震蕩器的理論進行了闡述和分析。
  2. The specific research methods are listed : 1. matched filter taking the max ouput snr as the best rule correlates nonstop divided signal and divided echo to detect low snr target signal. then all one dimension divided correlation outs and done fft in portrait to leach interferential signal such as static or low rate mussy meaves, many pathway echo and so on and to take target ' s time difference and doppler frequency that combine parameters that target ' s direction taken from antenna and so on to implement target ' s orientation and tracking

    具體研究方法如下： 1 、採用以輸出信噪比最大為準則的最佳匹配濾波器來對分段的參考和目標信號作相關處理來檢測低信噪比目標信號，然後對一維分段相關輸出組作縱向傅立葉變換來濾除靜態或低速的雜波、多徑回波等干擾信號，並提取目標的時差和多普勒頻率，再結合由天線獲得的目標方向等參數，就可以實現目標的定位和跟蹤。
  3. The stability output second harmonic generation ( shg ) experiment results of single - longitudinal mode and multi - longitudinal mode with long cavity were explained reasonably with these rate equations. the high polarization of fundamental wave in the isotropic laser media nd : yag with type - i critical phase - matching lbo was studied with the rate equations including polarization of fundamental light. using the polarization function of lbo, a quartz full - wave plate was introduced into the cavity, a kind of birefringent filter by considering the combination of the polarization function of the type - i critical phase - matching doubling frequency crystal lbo and the quartz whole - wave plate was constructed

    將腔內多縱模倍頻速率方程推廣應用到準三能級藍光激光器中，分析了一個縱模、兩個縱模、多個縱模時的噪聲情況，合理地解釋了實驗中激光器單縱模運轉以及長腔多縱模運轉時穩定輸出的實驗現象，同時利用該速率方程分析了以各向同性激光晶體nd : yag為工作物質，類臨界相位匹配lbo為倍頻晶體的藍光激光器中基頻光偏振特性，合理利用類臨界相位匹配lbo倍頻晶體的偏振特性與引入的石英晶體全波片構成雙折射濾光片，通過選單頻來抑制噪聲，獲得了藍光低噪聲的穩定輸出。
  4. On account of qpm can take advantage of the largest element of x tensor, and any interaction with transparency range of the material can be noncritically phase matched without walk - off angle. therefore, the conversion efficiency in longer crystal may be improved

    由於準相位匹配可利用非線性光學晶體最大的二階極化張量元，在晶體的整個通光范圍內均可實現非臨界相位匹配，在較長的晶體上可望實現較高的變頻效率。
  5. At present, people usually use birefrigence and quasi - phase - matching methods to achieve higher effiency in the process of conversion. a significant advantage of quasi - phase - matching method is that the interaction is occurred through the largest element of the x ( 2 ) tensor ; the period of optical superlattice can be designed randomly, and any interaction can be matched without walk - off angle ; they are fitted to be used in frequency conversion of lower power especially. the quasi - phase - matching method has some advantages over birefrigence method, improving the efficiency of frequency conversion ; the range of frequency conversion covers its whole transperant wavelength

    由於準相位匹配技術有其獨特的優勢，可以利用非線性光學晶體的最大二階極化張量，如ppln 、 pplt 、 ppktp用的非線性極化張量都是d _ （ 33 ） ，其有效非線性系數高出普通非線性光學介質（如bbo 、 lbo 、 ktp ）一個數量級，而且可以人為靈活設計調制周期，通過周期設計其頻率變換范圍可以覆蓋準相位匹配介質的整個透明波段，選擇無走離效應，解決了常規pm難以解決的問題，拓寬了非線性晶體的應用范圍，極大地提高了頻率轉換效率，已成為非線性光學材料和固體激光器的研究熱點之一。
  6. So qpm enlarge the application range of the crystal in existence. presently diode pumped all - solid - state lasers have been developing quickly, which provides an ideal pump source for qpm. so lower power all - solid - state laser frequency conversion by qpm has been becoming a research focus

    近年來，隨著激光二極體（ ld ）技術的發展，小功率全固態激光器已經十分成熟，為準相位匹配提供了優質的泵源，因此，小功率全固態激光器的準相位匹配頻率變換成為目前的一個研究熱點。
  7. Because the relative changing will result in the reducing of the accuracy of the determining the failure circuit region and the validity of the entire test system diagnosis result, their infrared thermal image must be matched

    熱像圖位置的相對改變會導致電路故障區域判定的準確性和整個診斷系統診斷結果的有效性的降低，因此必須對熱像圖進行匹配。
  8. This thesis focuses the research on the theory and application of the electro - optic effect in the quasi - phase - matching ( qpm ) nonlinear optics based on periodically poled lithium niobate ( ppln )

    本文旨在對電光效應基於周期性極化鈮酸鋰（ ppln ）的準位相匹配（ qpm ）非線性光學中的理論及其應用進行研究。
  9. Utilizing quasi - phasematched ( qpm ) technique to achieve a given useful laser frequency conversion is a practical and challenging topic

    利用準相位匹配（ qpm ）技術在光學超晶格中實現特定的可實用化的激光頻率變換，在目前是一個富有實際意義和挑戰性的課題。
  10. In this thesis, the main contents are following : 1. reviewing the theory of nonlinear frequency conversion. quasi - phase - matching is discused. presenting the method for configuring periodically poled as well as multiple period superlattice

    闡述了非線性頻率變換的原理，討論了相位匹配和準相位匹配技術，著重說明了周期和準周期光學超晶格的工作原理。
  11. And then the theoretic technique of import the periodically wave of periodically poled crystals in the process of opo was studied, the theoretical method was realized by using period poled crystal in quasi - phase - matched optical parametric oscillation

    研究了將周期極化晶體的周期波矢引入光學參量振蕩過程，利用周期極化晶體實現準相位匹配光學參量振蕩的理論方法。
  12. And the theory of qpm was explained on the base of coupling wave equation

    並從耦合波方程出發，說明了準相位匹配技術的原理。
  13. Ld - pumped nd : yag, lbo ( type - i critical phase matching ) intracavity frequency doubled, blue laser at 473nm was obtained finally. under the condition of 14w pump power, high power tem00 mode blue laser at 473nm of 1. 1w was obtained. by means of inserting diaphragm into cavity, the power fluctuation and beam mode were improved ; in the experiments, the proportion of special mode matching in quasi - three - level laser was discovered, and the phenomenon were explained reasonedly

    實驗上採用對熱效應不敏感的三鏡折疊腔， ld泵浦nd : yag ，類相位匹配lbo作為倍頻晶體，獲得了1 . 1瓦的連續473mn藍光輸出；採用腔內插入光闌的方法，有效克服了功率抖動，同時改善了光斑模式；實驗中發現準三能級激光器存在兩個空間模式匹配比例關系，並對這一現象給出了合理的解釋。
  14. Its arnplit ' ude and phase preserve peotation, single measurement or limited measurements could n ' t present the real character of sound field, so it will be more difficult to localize a source by matched field processing or get high accuracy of source localizaion

    而聲壓是一個隨機量，幅度和相位存在起伏，單次測量或少量有限次測量不能完整表達聲場特性，這就很難準確進行匹配場聲源定位，其精度得不到保證。
  15. In order to improve the algorithm, a algorithm integrating with optic flow is presented by introducing the theory of estimating motion between video frames by optic flow

    為了提高匹配速度，引入了光流法估計視頻圖像幀間運動的思想，提出了綜合光流法和基於歸一化積相關和高斯塔形分解的配準演算法的匹配定位方法。
  16. Look back the history of laser frequency conversion and present the present situation and the trend of quasi - phasematched ( qpm ). 2

    1 、回顧了激光變頻的歷史，著重介紹了準相位匹配及其材料的研究現狀及發展方向。
  17. This thesis is devoted to various studies involving quasi - phase matched optical parametric oscillator

    為此，在本文中，我們對準位相匹配的光學參量振蕩器進行了一系列的研究。
  18. At present, we have achieved frequency conversion in pulse - wave and continue - wave as well as quasi - continue - wave by using quasi - phase - matched method

    目前，利用準相位匹配技術已實現了脈沖、準連續和連續光的頻率轉換。
  19. In this paper, various frequency conversion by qpm technique will be studied in theoretically and experimentally and the fabrication methods of osls will be presented : 1

    本文從理論和實驗上研究了利用準相位匹配技術的各種變頻效應及光學超晶格的制備方法。
  20. Due to qpm takes on many virtues, and its material is easy to fabricate, qpm technique have been becoming the focus of the frequency conversion. along with the development of qpm theory and the perfection of fabrication method, qpm will show quite exciting application foreground. at home, the national laboratory7 of solid microstructures

    準相位匹配技術由於具有上述諸多優點，其材料便於人工制備已逐漸成為非線性變頻領域的一個熱點，隨著人們對準相位匹配理論研究的深入和光學超晶格制備技術的完善，準相位匹配技術將顯示十分誘人的應用前景。
分享友人
分享到 Line

分享到臉書