quasi-optical 中文意思是什麼

quasi-optical 解釋
adj. 形容詞 準光(學)的。

  • quasi : adv 1 在某一意義上,有點,幾乎。2 恰如,宛如,就像是。3 就是說,即〈略作 q 或 qu 尤用以作語源上的...
  • optical : adj 眼的;視覺的;視力的;幫助視力的;光學(上)的。 optical activity 【物理學】旋光性。 an optic...
  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 positive and negative frequency expressions of quasi - monochromatic optical fields of a pulse in fiber - optic communication and the positive and negative frequency forms of fourier transformations and nonlinear schr ? dinger ( nls ) equations are discussed

    摘要討論光通信中脈沖的準單色光光場的正負頻表示,正負頻形式的傅里葉變換,正負頻形式的非線性薛定諤方程及它們之間的關系。
  3. Gtms, or ground truth measurement system, is a high speed ( quasi - real - time ) optical tracking and motion capture software

    是一個高速的(半實時)光學跟蹤和運動捕獲軟體。
  4. 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。
  5. We transformed the nonlinear equation of the light - wave envelope in lossy dispersion - managed optical fibers and obtained numerical curve of the equation with the use of mathematical software, then the approximate solution was found by fitting of the curve, also the envelope propagation of the quasi - soliton was analysed

    摘要對有損耗的色散光纖中光波包絡的非線性方程進行變換,藉助數學軟體得到非線性方程的數值曲線,並通過對曲線的擬合得到方程的近似解,對色散管理類明孤子的傳輸進行了分析。
  6. The principle advantages of vcsels over conventional edge - emitting lasers lie in ultralow threshold current, small far - field divergent angle, high modulation frequency, potential for wafer level testing and the ease for single longitudinal mode operation and two - dimension integration. as a result they show considerable promise for applications such as optical fiber communication, parallel optical interconnects, optical information processing and neural networks, etc. a direct coupling theoretical model in quasi - three - dimension for the gain - wave guide vertical - cavity surface - emitting lasers has been created in this paper

    它與傳統的邊發射激光器相比具有更優越的特性,例如,具有極低的閾值、較小的遠場發散角、調制頻率高、易實現單縱模工作和二維集成,無須解理封裝即可進行在片測試等,所以,它被廣泛應用於光纖通訊、并行光互聯、光信息處理、光神經網路等領域。
  7. 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。
  8. Quasi - symmetric coupled quantum well and optimal design for optical switch structure

    準對稱耦合量子阱與光開關結構優化設計
  9. Because mz interferometric optical fiber gyroscope has bigger nonreciprocal phase, the system thermal stability, polarization noise and the error caused by the fluctuation of light source is particular analysed, some effective methods is proposed such as : using the " quasi - white - light " interferometry and the fiber polish technology accurately to control the fiber length, using depolarization light to minish the polarization error, and using temperature control, optical power control and depolarizer to stabilize the output of the light source

    結合mz干涉式光纖陀螺的存在較大非互易相移的特點,著重從其溫度穩定性、偏振噪聲以及光源波動引起的誤差三個方面分析了抑制噪聲、提高檢測精度的方法,提出了:採用「準白光」干涉測量法結合光纖研磨技術精確控制光纖長度差的辦法;採用非偏振光源抑制偏振噪聲的方法;採用溫度控制、功率控制以及消偏器實現穩定化陀螺光源的方法。
  10. The electromagnetic field and energy distribution of gaussian beam existing in quasi - optical resonator are analyzed and simulated using matlab, the resonant frequency and waist radius of the resonator are calculated, and design the 3mm quasi - optical resonator according to resonant frequency and waist radius

    本文首先分析了準光腔內存在的高斯波束電場和能量分佈情況,模擬了工作模式tem _ ( 00q )和高次模式的電場和能量分布圖,計算準光腔的諧振頻率和束腰半徑,以此為依據設計了3mm準光學諧振腔。
  11. Optical preparation of the quasi - bell - base of entangled coherent states

    制備糾纏相干態的準貝爾基
  12. The theory of optical interference is analyzed, the measurement of small out - of - plane vibrations in quasi real time using a photorefractive crystal as a medium for recording interference fringes is discussed

    摘要利用光的干涉原理,分析了應用光折變晶體記錄干涉條紋在準實時、離面小振幅振動時的測量方法,並給出了計算機模擬結果。
  13. 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。
  14. The task will be completed by designing 3mm quasi - optical resonator to get small waist radius of gaussian beam existing in quasi - optical resonators. the 3mm quasi - optical resonator test system is built and the test soft is written in vc + + language. we test on dielectric plates, then realize sweep test of large - area sample by adjusting move set to get dielectrical parameter distribution

    本課題擬通過設計3mm開放式諧振腔,使開放式諧振腔中傳播的高斯波束的束腰半徑盡可能小,組建3mm準光學諧振腔測試系統,編寫測試軟體,對介質片進行測試,調節移動裝置,實現對大面積介質片的掃描測試,從而測得介質片介電性能的分佈。
  15. Larger growth pressure of buffer layer led to the dramatic increase of structural and optical quality of gan epilayer, and the improvement in quality was attributed to the transition of growth mode from 3d to quasi 2d, which was revealed by scanning electron microscope

    發現緩沖層的生長壓力變化對退火后緩沖層表面的狀態影響極大,增大緩沖層生長時的反應室壓力可以明顯提高外延gan的晶體質量和光學質量。通過sem分析,發現提高緩沖層生長壓力時,高溫gan生長明顯經歷了從三維生長到二維生長的過渡,晶體質量明顯提高。
  16. This thesis performs the research how to analyze and design lithium niobate optical modulator in i - fog. the analysis concentrates on those performance parameters of a modulator : half - wave voltage, single mode performance, quasi te / tm polarization, loss, bandwidth and split - ratio

    這些都是圍繞調制器的性能參數來研究的,它們包括:半波電壓,單模特性,偏振特性( te和tm模之間的輸出功率比值) ,損耗,帶寬及分支比等。
  17. In addition, quasi - phase - matched materials is being used in optical parametric oscillator widely. periodically poled nonlinear crystals are of particular advantage for realizing efficient optical parametric oscillators

    另外,利用ppln製成的光參量振蕩器產生的紅外波段光源,在軍事對抗、大氣環境檢測、醫學以及光譜學等領域都有十分重要的應用價值。
  18. The main research work includes : 1. through analyses of the correlative measurement technology and consideration of the characteristic of the measured materials, the method by quasi - optical resonator is selected ; theory of quasi - optical resonator is analyzed ; physical model is settled ; the formulas are deduced. 2

    本課題的主要工作包括: 1 .通過對國內外相關測量技術的分析,根據實際情況,確定了用準光腔進行測量;分析了準光腔理論;建立了用反射法測試的理論模型;推導了用準光腔測量復介電常數的公式。
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