crystal grating 中文意思是什麼

crystal grating 解釋
晶格
  • crystal : n 1 結晶，（結）晶體；晶粒；水晶（＝rock crystal）；石英。2 【無線電】晶體。3 結晶玻璃；雕玻璃；...
  • grating : n. 1. 格柵，格子；（船上作地板或透光用的）格子板，格子蓋。2. 【物理學】光柵。adj. 刺耳的，使人煩躁的，討厭的。n. 摩擦，摩擦聲。adv. -ly
  1. Introduction of the current status and development of key technologies of the three - dimensional contour measurement. creation of the measuring means of free curved surfaces of objects, based on the passive stereo visual technology and the active liquid crystal grating encoding technology

    綜合結構光法和立體視覺法，在對傳統視覺傳感器結構統一的基礎上，提出了基於被動式雙目立體視差技術和主動式液晶光柵編碼技術傳感器，實現物體的三維形貌數字化測量。
  2. Based on the band transport model, the formation of refractive index grating in photorefractive crystal is discussed firstly. then the characteristics of two - wave coupling, four - wave mixing and light - induced scattering are analyzed

    本文主要從實驗上研究了cu ： knsbn晶體的自泵浦相位共軛特性及cr ： sbn晶體的四波混頻相位共軛特性及其應用。
  3. Difference iterative method was used to estimate numerically director configurations in the nlc - bl037 cell in this paper. the refractive indices and phase retard of nlc in electric field was presented on the basis of the calculation of liquid crystal director distributions. then we analysed the diffraction phenomenon when the linearly polarized light was controlled by diffraction grating which was based on rectangular grating and sinusoidal phase grating models and we got it ’ s math model 。 finally we designed the nlc phase grating and we did the experiment to validate the theoretic calculation

    文中利用差分迭代法計算了向列相液晶bl037盒中指向矢分佈的計算，根據指向矢的分佈情況得到了向列相液晶的雙折射率分佈和非常光通過液晶盒產生的相位延遲隨電壓變化;並在矩形光柵和正弦相位光柵的基礎上，分析了入射偏振光通過液晶電控光柵所產生的衍射情況。
  4. The angular multiplexing technology for photorefractive grating and exposure technology in the formation of photorefractive multiple volume gratings are further discussed, by which eight photorefractive volume gratings in a linbo3 : fe crystal sample with size of 10x10x 10mm3 have been successfully recorded

    進而探討了體光柵的角度復用技術和多重體光柵寫入過程中的曝光技術，用循環曝光法在10 10 10mm ~ 3的塊狀晶體中成功地寫入了8重衍射效率相近的光折變體光柵。
  5. Based on the requirement and target of the projects, firstly, pcf bragg grating are investigated theoretically and experimentally. moreover, the effects of filling high refractive index material ( nematic liquid crystal, nlc ) in pcfs on the transmission mechanism and propagation properties are studied by using plane - wave method and finite - element method ( fem ), farther, several novel pcfs are proposed and designed. lastly, we propose and demonstrate a clad - pumped er3 + / yb3 + - codoped fiber laser, which integrate all performances of broad - band tunable wavelength, uniform output power spectrum, high repeat frequency and high average power to together

    本論文選題于國家973 、 863以及國家自然科學基金等項目，結合課題的要求和主要目標，在對光子晶體光纖（ pcfs ）傳輸特性研究的基礎上，首先對光子晶體光纖光柵進行了理論和實驗研究;然後，採用平面波展開法和有限單元法分析了在光纖的空氣孔中填充高折射率液晶對光纖傳導機制和傳輸特性的影響，提出並設計了幾種新型光子晶體光纖;最後，提出並研製成功連續可調諧、輸出功率譜均衡的全光纖化、高功率包層泵浦鉺鐿共摻光纖激光器實驗樣機。
  6. It has broad application prospect in the following fields such as microelectronics, photoelectronic devices, large screen flat panel display, field emitter array, acoustic surface wave device, photon crystal, light waveguide array, holographic honeycomb lens and micro - optical element array, micro - structure manufacture, fabrication of large area grating and grid of high resolution, photoresist performance testing, profile measurement and metrology, etc. the paper only involves the primary research of interferometric lithography

    在微電子、光電子器件、大屏幕平板顯示器、場發射器陣列、表面聲波器件、光子晶體、光波導陣列、全息透鏡和微光學元件陣列、微結構製造，高分辨、大面積光柵和網格製造，在抗蝕劑性能測試、面形測量和計量等領域，干涉光刻技術都具有廣闊的應用前景。
  7. In this paper we demonstrated a new field - controllable liquid - crystal phase grating which to used in orientation detecting and automatic tracking and aiming in space communication

    本文提出了利用一種新的液晶器件對空間光通信中對激光源進行方位探測和自動跟瞄，即液晶電控光柵。
  8. In our experimentation, we combine fiber bragg grating with tb - dy - fe single crystal, we can measure the current which produces the magnetic field when we measure the shift of bragg wavelength because of magnetostrictive strain of tb - dy - fe single crystal in magnetic field, we also study the relation between bias field, strain of current sensor

    本實驗將光纖布拉格光柵與tb - dy - fe結合起來，利用tb - dy - fe在磁場下的伸縮引起布拉格波長的改變，來測量產生磁場的待測電流的大小。在實驗中我們還研究了偏場，預應力與傳感器的關系，在這個過程中我們找到了與傳感器有關的最佳設計參數。
  9. Crystal space grating

    晶體空間光柵
  10. In this paper we present the theory of the formation of photorefractive gratings and its filtering mechanism, and discuss the recording method in linbo3 : fe crystal and its application in demultiplexing system. the main contents are following : ( 1 ) the formation mechanism, diffraction efficiencies and wavelength sensitivity of the photorefractive volume grating in photorefractive crystals are theoretically analyzed

    本文主要從理論上分析了光折變光柵的形成機理和多重光折變體光柵的濾波原理，並從實驗上探討了在linbo _ 3 : fe晶體中寫入光折變體相位光柵的方法及其在波分解復用系統的應用。
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