diffraction efficiency 中文意思是什麼
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The bragg diffraction efficiency of gows in bismuth - doped yig film is caculated by considering the edge cut - off effect. the obtained theoretical curve is basically agreement with the experimental results. it is shown that the diffraction performance for mo bragg cells can be greatly increased by using an appropriately nonuniform bias field
2 .考慮到邊緣截止效應，論文中計算了靜磁正向體波對導波光的衍射效率，理論結果與實驗符合;從而表明，與均勻場情形相比，適當不均勻場可以大大提高磁光bragg器件的衍射效率。 -
The recording characteristics of the material are discussed in detail in terms of sensitivity, diffraction efficiency, bragg angle, refractive index modulation ( an ) and so on
通過在材料中記錄無傾斜光柵，研究了該材料的全息存儲特性（包括衍射效率，靈敏度，動態范圍，折射率調制度，角度選擇性等） 。 -
Since the dichromated gelatin has a higher diffraction efficiency in all holographic recording materials, the aim of this research is to use dichromated gelatin as the recording material and to make use of the principle of holography to design holographic optical components, especially in fabrication procedure of dichromated gelatin film and in experimental technique to form a high diffraction efficiency using different angular exposure method
為了產生優質的聚焦能力與效率，本研究採用目前具有最高繞射效率（ 80 ~ 90 % ）的重鉻酸明膠材料作為感光劑，除了自行調制藥劑比例成分，並依嚴格的製作步製成重鉻酸明膠全像片外，並採用不同角度重覆曝光方式改良干涉式波帶板無法自動追蹤的缺點，經過多次試驗與改進，藉以形成具備高繞射效率和自動追蹤功能的全像光學波帶板。 -
The performance of another photopolymer system without shrinkage in theoretic is discussed also. the experiments indicate that this kind of photopolymer has little erasure effect. however, its diffraction efficiency need to be improved and the noise of the material need to be restrained
分析了一種理論上無收縮體系材料的全息存儲特性，並對材料的耐擦除特性作了實驗研究，表明該材料擁有較好的耐擦除特性。 -
The diffraction efficiency changing with grating parameters, especially for the situation that gaussian beams diffracted by finite grating, is numerically studied. 3
對單色平面波和有限尺寸高斯光束入射矩形光柵時的衍射效率與光柵柵距、槽深、開口比和入射角等參數的關系進行了模擬計算。 -
However, the msw - based mo devices haven ’ t still been applied extensively up to now because of low bragg diffraction efficiency. the generation and propagation characteristics of magnetostatic forward volume waves ( msfvws ) under nonuniform bias magnetic field and the bragg diffraction efficiency of gows with the msfvws are theoretically studied in this paper
本論文主要從理論上研究不均勻場中靜磁正向體波（ msfvw ）的激發與傳播特性，以及不均勻偏置磁場在提高靜磁波對導波光的bragg衍射效率方面所起的作用。 -
The influence of msfvw bandwidth on the diffraction efficiency is also considered. for the nonuniform bias magnetic field of u - type parabola profile, when the msw frequency is less than the cut - off frequency at the edge of mo film, the effective mo interaction length reduces. the edge cut - off frequency is determined by the maximum of the nonuniform field
對于拋物型分佈（開口向上）的偏置磁場，當激發靜磁波的rf頻率小於邊緣截止頻率時，磁光作用的有效長度減小（與靜磁波頻率有關） ;邊緣截止頻率由不均勻磁場的最大值決定，靜磁波的下限截止頻率由不均勻場的最小值確定。 -
Meanwhile, such parameters as diffraction efficiency, deflection angle and driving power of device have been analyzed and computed theoretically
電極厚度以及器件的聲光衍射效率、偏轉角度、聲驅動功率等參數。最後是器件的製作。 -
The transmission angle is controlled by grating frequency and the diffraction efficiency is controlled by groove depth of sub - micro gratings to get uniformity of transmission filed
亞微米光柵型導光板通過光柵空頻控制出射光方向、控制槽深調節衍射效率，達到導光板出射光強的均勻性。 -
Abstract : with the use of the theory of blazed phase gratings, the color separation phase grating used for icf drivers is designed, which can off - axis separate the fundamental, 2nd and 3rd harmonic waves. theoretically, its diffraction efficiency for 0 " th order at the 3rd harmonic wave is 100 %. experimentally, a color separation grating is made. both its separation angles ( at the 1st and 2nd harmonic waves ) and its diffraction efficiencies for 0 " th order are measured, and some significant results are presented
文摘:採用相位閃耀光柵原理設計出用於icf驅動器中能離軸分離基頻、二倍頻、三倍頻激光的色分離相位光柵，理論上三倍頻零級衍射效率達到100 ，同時，對該相位光柵進行了實際製作和實驗測量，測出了基頻光和二倍頻光的分離角以及光柵的零級衍射效率，得到了一些有意義的結果。 -
This paper is aiming at image recognition based on angle - multiplexed volume holographic correlator. the principles of the volume holographic storage are firstly introduced in this paper. they are the recording, reconstruction, diffraction efficiency and angular selectivity of volume holograms
本論文首先介紹體全息存儲的基本概念和理論，它包括體全息圖的記錄和再現，體全息圖的衍射效率，體全息圖的水平、垂直角度選擇性等，並介紹了光學相關器和圖像識別。 -
Furthermore, the exposure schedule for recording holograms with equalized diffraction efficiency is designed based on the above - mentioned optical erasure time constants
並且依據上述兩種光擦除時間常數，為分批存儲熱固定多重全息圖的等衍射效率記錄設計了曝光時序。 -
The diffraction efficiencies of multiple holograms recorded and fixed in different number of batches are calculated and analyzed. if a special exposure schedules calculated based on the characteristic time constants of batch fixing scheme is incorporated for equalized diffraction efficiency, the greater the number of batches is, the higher the equalized diffraction efficiency of fixed holograms
結果表明，採用分批存儲熱固定技術，所分的批次數越多，經等衍射效率曝光時序記錄后的全息圖最終達到的等衍射效率值越高，並且所有全息圖的寫入曝光時間值越接近。 -
We stored 1000 binary pages in a 0. 03 % ferlinbo3 crystal using this system and batch thermal fixing technique. all the stored images are retrieved, and the retrieved images have uniform diffraction efficiency and good quality
最後，採用分批熱固定方法在fe : linbo _ 3中存儲1000幅二值數據頁，全部讀出所有的圖像，衍射效率均勻，圖像質量良好。 -
Abstract : the second scalar analysis method to calculate the di ffraction efficiency of grating was described in detail, a simple effective approximation formula to calculate the diffraction efficiency of grating was educed. diffraction efficiencies were given and compared with scalar results, rigorous vector results
文摘:詳細介紹了計算光柵衍射效率的二階標量近似法，推導出一種簡單有效的計算光柵衍射效率的近似公式.給出了利用近似公式對幾種情況下光柵衍射效率的計算結果，並與普通標量法、嚴格矢量法的計算結果進行了比較 -
Studied the read method for equal diffraction efficiency image
研究了等衍射效率全息圖的讀出方法。 -
Focusing characteristics and diffraction efficiency of the holographic lens in icf driver system
系統中全息透鏡聚焦特性及衍射效率分析 -
The relationship between diffraction efficiency and groove depth, and the light - guiding properties of sub - micron gratings are verified by experiments
通過實驗驗證亞微米光柵衍射效率與光柵槽深的關系，並證實亞微米光柵具有導光特性。 -
Experimental results on photopolymer, holographic recording material provided by technical institute of physics and chemistry chinese academy of sciences, were presented. the preparation of the material is reported. mechanism of hologram formation in photopolymer films is discussed and high - diffraction - efficiency unslanted gratings were made
用實驗的方法研究了一種自製（中科院理化所製作）的光致聚合物，給出了材料的製作方法並討論了材料的反應機理。 -
As the results, firstly, some steady parameters were determined, including the gain coefficient, diffraction efficiency of the volume grating and response time t1 of twm under different total incident intensity i0, ratio of two writing beams mo, angle between two writing beams 2 and polarization conditions
論文給出了不同寫入光強比、寫入總光強、寫入光夾角及偏振光下ce ： knsbn晶體的兩波耦合增益系數、衍射效率、響應時間的變化規律。
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