sbn 中文意思是什麼

sbn 解釋
1-羥基-2-萘偶氮-2-萘酚-4-磺酸
  1. 0xl0 - 2 c / cm2k respectively. and the sbn thin film can avoid plumbum pollution of pzt ferroelectric material

    而且， sbn在制備過程中能夠避免pzt等鐵電材料的鉛污染的問題。
  2. Sbn standard book number

    標準圖書號
  3. ( 1 ) effects of externally applied electric fields on photorefractive two - beam coupling are analyzed. theoretic dependence of the intensity gain factor on applied field e0 in sbn : 60 is presented. and the experimental results obtained in two sbn : 61 : cr crystal samples with different dopant concentration show clearly that for properly applied fields, a larger f can be achieved effectively than that obtained with no field applied

    由兩塊不同摻cr濃度的sbn 61 cr晶體得到的實驗結果同時表明，適當的外電場作用能夠有效提高晶體的二波耦合增益，並且，外電場的作用使晶體的響應速度大大提高，而晶體的最佳耦合角與外電場之間沒有明顯的依賴關系。
  4. The experiment show that cr : sbn crystal has super characteristic of four - wave mixing to produce the phase - conjugate wave. we study the dependence of the phase - conjugate reflectivity of 1000ppm cr : sbn crystal on the parameters of incidence light such as light intensity ratio and the angle of incidence

    研究了摻雜量為500ppm的cr ： sbn晶體的四波混頻相位共軛特性，發現該晶體的四波混頻特性不如摻雜量為1000ppm的cr ： sbn晶體。
  5. It has many potential applications, including self - adaptive optics, optical computing and optical communications, image processing and real - time holography. in this thesis, we investigate the properties of the phase - conjugate wave produced by the self - pumped in cu : knsbn crystal and by the four - wave mixing in cr : sbn crystal

    光折變晶體具有非常大的非線性光學系數，是一種理想的相位共軛材料，因而被廣泛地應用於自適應光學、光計算、光通訊、圖像處理、實時信息處理等許多方面。
  6. ( 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。
  7. Only at higher temperature the ttb sbn can be formed by the reaction of sn and bn phases

    高溫有助於斜方晶系結構的sn相和bn相轉變為四方晶格鎢青銅結構的sbn相。
  8. ( 3 ) we explore photorefractive screening solitons and characters of beam transmission in sbn : 61 : cr crystals. the dependence of beam diameter at the crystal output face on applied field is presented. and influences of the limiting space charge field of the crystals on the experimental results are analyzed

    （ 3 ）初步研究了兩塊不同摻cr濃度的sbn 61 cr晶體中的屏蔽型空間孤子效應，以及不同外加直流電場作用下光束在晶體中的傳輸，給出了晶體出射表面處光斑直徑隨外電場的變化曲線，並分析了晶體中空間電荷場的飽和效應對實驗結果的影響。
  9. And the steady - state coupling response time rdecreases from 0. 8s to 0. 3s. but there are almost no changes in 2peak with fields applied. ( 2 ) using the characters of two - beam coupling in sbn : 61 : cr crystals under applied fields, applications in image edge - enhancement and photorefractive edge - enhancement joint transform correlator are investigated

    （ 2 ）研究了外加直流電場作用下sbn 61 cr晶體的二波耦合特性在光學圖像邊緣增強以及光折變邊緣增強聯合變換相關器等方面的應用，討論了外電場對光折變邊緣增強及光折變聯合變換相關識別效果的影響。
  10. Only appropriate field is applied, can planar waveguide be fabricated in sbn crystal

    只有沿sbn晶體的c軸方向施加適當的外電場，才能寫入平面光波導。
  11. The ra value is 4nm. this implies k : sbn buffered sbn thin films fabricated with the sol - gel process have a

    由此驗證了薄膜與晶體相似的性質一一ksbn薄膜的橫向電光系數大於sbn薄膜。
  12. In addition, the nb ( oc2hs ) 5 - precursor sbn thin films doping the k + were crystallized with preferred c - axis orientation which is similar with the orientation of the nbcl5 - precursor sbn films

    Sbn薄膜表面粗糙度ra為12nm ;加了mgo緩沖層的sbn薄膜更加緻密，結晶顆粒更小，表面也更平整， ra為4nm 。
  13. Sbn has currently being investigated as a potential material for many microdevice applications such as pyroelectric infrared detectors, electrooptic modulators, dram, etc. with the rapid development of the optical communication industry, especially the development of integrated optical devices, a successful hetero - epitaxial growth of the film on si substrate is necessary which can reduce loss in the waveguide effectively

    隨著光通訊產業的迅速發展，特別是集成光學的發展，迫切需要在硅襯底上生長擇優取向性好的鈮酸鍶鋇晶體，來有效地減少光在波導結構中的損耗。本論文探討了sbn薄膜的溶膠-凝膠（ sol - gel ）生長技術及其原理。
  14. And, the sbn films were found more and more ( 001 ) preferential orientated with the increasement of film thickness and it was attributed to the lower layer acting as the buffer one to improve the lattice mismatch between the sbn film and the substrate

    而且，隨著膜厚的增加，處于底層的膜層起到緩沖層的作用，逐漸改善著薄膜與襯底之間的晶格失配，從而使得sbn薄膜在（ 001 ）方向的優先取向性越來越好。
  15. ( 2 ) taking the nonlinear energy transfer property of the photorefractive two - beam coupling in the sbn : 61 crystal doped with 1000ppm cr and the knsbn crystal doped with 0. 07wt % ce, edge - enhancement preprocessing can be achieved, which will results in the larger normalized intensity and narrower width of the correlation peaks. and the discrimination of the jtc is greatly improved

    （ 2 ）利用sbn ： 61 ： cr晶體（ 1000ppm ）和knsbn ： ce晶體（ 0 . 07wt ）的二波耦合能量非線性轉移特性，對聯合變換相關器的輸入圖像進行邊緣增強預處理，提高了相關峰的歸一化強度，減小了相關峰的半寬度，從而大大提高了相關器的識別能力。
  16. By examining the micro mechanism of photorefractive effect, we can find that an external dc electric - field can greatly alter ( improve or worsen ) the photorefractive properties of sbnrcr. so it is important to study electric - field effects in these materials. in this thesis, the characters of beam coupling and transmission in sbn : cr crystals under external dc electric - fields are investigated theoretically and experimentally

    本文依據光折變非線性光學的光波耦合理論和傳輸理論，對sbn cr晶體在外加直流電場作用下的光波耦合特性和傳輸特性進行了理論分析和實驗研究，主要內容包括： （ 1 ）從理論上分析了外加直流電場對光折變二波耦合增益的影響，給出了sbn 60晶體的強度增益系數隨外加電場變化的理論計算曲線。
  17. The experiment results demonstrate that sbn crystal has high photorefractive sensitivity and rapid response. so the array waveguides written into the doped sbn crystals have important applications in spatial optical dynamic interconnections and light - light modulations

    實驗表明， sbn晶體具有較高的光折變靈敏度和較快的響應速度，在其中寫入的陣列平面波導對于實現空間動態光互聯和光光調制的應用研究具有十分重要的意義。
  18. It is proved that the approximate single crystal hetero - epitaxial sbn thin film was not formed until heat - treated at 1000 ? on si substrate

    只有在1000的退火溫度下才能在si襯底上生成近似單晶外延的sbn薄膜。
  19. Sbn : cr is one of the most promising photorefractive materials for various nonlinear optical applications due to its high photorefractive sensitivity and rapid response in red spectral region

    作為一種在紅光區具有較高光折變靈敏度和快速響應的優質光折變材料， sbn cr晶體具有重要的研究價值。
  20. We draw the conclusion that 1000ppm cr : sbn crystal has greater phase - conjugate reflectivity than 500ppm cr : sbn crystal. we find that the phase - conjugate reflectivity depends on the direction of two - wave coupling. we utilize 1000ppm cr : sbn crystal to correct a distorted picture because of its super phase - conjugate characteristic

    還討論了光束耦合方向對cr ： sbn晶體的四波混頻相位共軛特性的影響；利用cr ： sbn晶體四波混頻相位共軛特性進行了圖像畸變消除的實驗。
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