晶體光柵 的英文怎麼說
中文拼音 [jīngtǐguāngzhà]
晶體光柵
英文
crystal grating-
Not only general suitability of this method is independent of gratings model, geometry structure, medium properly and crystal axis orientation ( including uniaxial crystals and biaxial ones ), but also physical concepts are clear and formula is concise
該方法不僅不受光柵模型、幾何結構、介質性質和晶體取向（包括單軸和雙軸晶體）的影響而具有普遍適用性，而且其物理概念清晰、公式簡潔。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。Then we turned in the input laser to observe the decline of phase conjugate reflectivity. measuring dark storage time, we found that the phase conjugate reflectivity declined to 50 % of steady - state value when photorefractive crystal was in dark condition for 30 minutes. even after 9 hours, there still existed remaining reflectivity, which could n ' t be measured by our detector
因而研究了晶體內位相共軛光柵存儲特性，即觀察位相共軛光柵形成后在黑暗條件下能存儲的時間，實驗結果得出位相共軛光柵在黑暗中30分鐘后，位相共軛反射率下降到原來的50 ，而在黑暗中9小時后，位相共軛光非常微弱，無法測出。A new binocular vision sensor based on lcd grating technique is developed. it has the functions of three traditional vision sensors : point scanning, line scanning and grating code
研製了基於液晶光柵技術的新型雙目視覺傳感器，無需硬體改動，只需改變軟體即可實現點掃描、線掃描和光柵編碼型視覺傳感器的功能。The hardware of the system is made up of p89c61x2ba as main processor, usbn9604 as usb interface, grating signal - processing circuit, xc95108 as signal subdivision, sensing, counter circuit and so on
硬體部分以p89c61x2ba為控制核心，包括採用usbn9604介面晶元的usb介面電路，光柵尺輸出信號處理電路，以xc95108為主的信號細分、辨向和計數電路等。Long - period gratings inscribed in photonic crystal fibers
基於光子晶體光纖的長周期光柵( 4 ) light - induced scattering in sbn : 61 : cr crystals under applied fields and its suppression are studied. a new method is proposed that the scattering light can be suppressed through erasure of scattering gratings by higher power pump beam ( coherent or incoherent )
（ 4 ）討論了sbn 61 cr晶體在外加直流電場作用下的光感應光散射現象及其消除方法，提出通過引入另外一束相對高強度的光束（相干或者非相干） ，利用其對散射光柵的擦除作用消除信號光束的散射。Research on surface and grain boundary passivation mechanism obtained effects of surface recombination on crystalline silicon solar cell performance and the theoretical expression of grain boundary recombination velocity. the limit ratio of short - circuit current increment for anti - reflection coating utilization on solar cells was obtained. the crystalline silicon solar cell spectral response, contact resistance and minority carrier lifetime measurement systems were established
鈍化機理研究獲得了表面復合對不同表面摻雜濃度晶體硅太陽電池性能的影響、表面和界面復合速度的理論表達式；研究得到了減反射膜對太陽電池短路電流增量比的極限；建立了太陽電池光譜響應、柵線電極接觸電阻和少子壽命等測試系統。In fixing stage, the ions in crystals move to form an ionic grating that compensates the electronic grating at elevated temperature. in developing stage after cooling crystals to room temperature, a homogeneous illumination erases the electronic grating and brings out the ionic grating
定影是通過加熱記錄了體全息光柵的晶體使晶體中的離子運動並去補償記錄信息的電子光柵，形成與電子光柵互補的離子光柵；顯影是在室溫下用均勻光束照射晶體以擦除掉電子光柵，得到離子光柵。( 4 ) by using the excellent angle and wavelength selectivity of the photorefractive volume gratings, the wavelength of ld are measured exactly in experiment
利用在linbo _ 3 : fe晶體中形成的體全息光柵優良的波長和角度選擇性，實現了對激光二極體輸出波長的測量。The feasibility of the multiple photorefractive volume applying to wdm system is demonstrated by analyzing the diffractive properties of the eight holographic gratings superimposed in the linbo3 : fe crystal
通過對10 10 10mm ~ 3塊狀linbo _ 3 : fe晶體中用角度復用技術寫入的8重體光柵的衍射特性分析，證實了光寫入多重體光柵應用於波分復用系統的可行性。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。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。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。Then the theoretical computing methods are presented, in which we emphasize particularly on the plane wave method ( pwm ) and the finite element method ( fem ). with the two methods mentioned above, important parameters such as bandgap, dispersion, leaky loss and so on are calculated, as well as the birefringence of two kinds of mf, which are in two different mechanisms. a new type of optical coupler based on dual - core bandgap microstructure fiber is presented
主要研究內容如下: 1 、利用平面波展開方法和有限單元方法研究了微結構光纖的傳導特性，對三角形、蜂窩形柵格空氣孔包層結構的光子能帶進行了研究，在此基礎上闡述了光子晶體光纖的傳導機制，對折射率引導和光子帶隙引導微結構光纖的波導色散、泄漏損耗和有效模場面積進行了研究。Firstly, we study the photonic band structure of the pcf cladding with triangular and honeycomb air holes lattices. then the guided mechanisms of pcfs are demonstrated. the waveguide dispersion, leaky loss and effective modal area for both index - induce pcf and pbgf are presented
首先對三角形、蜂窩形柵格空氣孔包層結構的光子能帶進行了研究，在此基礎上闡述了光子晶體光纖的傳導機制，對折射率引導和光子帶隙引導光子晶體光纖的波導色散、泄漏損耗和有效模場面積進行了研究。Iron - doped photorefractive lithium - niobate crystals ( linbo3 : fe ) have good electro - optic, acoustic - optic, nonlinear characterizations, and hardly light absorption and photorefractive sensitivity in the wavelength around 1550nm, which makes them attractive for using as passive optical components in telecommunication networks
而光折變linbo _ 3 : fe晶體具有良好的電光、聲光以及非線性特性，且在現有的通信窗口1550nm波長處幾乎沒有光吸收，對光的敏感性很小，是光折變光柵應用於光通信系統的首選材料。Splicing between single - mode fiber and pcf are theoretically and experimentally investigated. the fiber bragg grating is written in grapefruit pcf. the multi - wavelength resonances are observed in the grating, and theoretical analysis shows that this phenomenon is caused by the resonances between core modes and cladding modes
建立了光子晶體光纖和普通光纖的熔接方法，在柚子形光子晶體光纖上寫制了布拉格光柵，觀察到多波長諧振現象，理論分析表明這是由於纖芯基模和包層模之間的諧振造成的。( 2 ) the optimal condition for recording single hologram in linbo3 : fe crystal is experimentally discussed
從實驗上探討了利用光輻照法在linbo _ 3 : fe晶體中寫入單個體光柵的最佳寫入條件。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。分享友人