磁光晶體 的英文怎麼說
中文拼音 [cíguāngjīngtǐ]
磁光晶體
英文
magneto-optic crystal- 磁 : 名詞1. [物理學] (磁性; 能吸引鐵、鎳等的性質) magnetism 2. (瓷) porcelain; china
- 光 : Ⅰ名詞1 (照耀在物體上、使人能看見物體的一種物質) light; ray 2 (景物) scenery 3 (光彩; 榮譽) ...
- 晶 : Ⅰ形容詞(光亮) brilliant; glittering Ⅱ名詞1. (水晶) quartz; (rock) crystal 2. (晶體) any crystalline substance
- 體 : 體構詞成分。
- 晶體 : [晶體學] crystal; vitrella; crystal body; crystalloid; x-tal
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In the second chapter, we explain the basic knowledge on magneto - optic effect and the progress of the magneto - optic materials in detail. first, the theory of faraday effect, magnetic circular dichroism, magnetic linear birefringence and kerr effect are argued. then the kinds of the magnetic materials and the magneto - optical devices are discussed
在磁光理論部分,分別對faraday效應與磁致圓二向色性、磁致線雙折射與線二向色性、磁致克爾效應等磁光效應進行了理論推導與分析;在磁光晶體部分,對磁性材料的分類及部分重要的磁光器件進行了介紹。Electromagnetically induced transparency and slow group velocity in pr3 y2sio5 crystal
晶體中電磁感應光透明及群速度減慢All my samples with good orientation are prepared by rf sputtering. then we invest surface morphology and crystal structure, optical and electrical properties of zno films by afm, xrd, hall testing, ultraviolet - visible spectrum photometer and xps et al. zno films are fabricated on gaas substrate
本文用射頻反應磁控濺射制備了高度c軸擇優取向的zno薄膜,採用原子力顯微鏡( afm ) 、 x射線( xrd ) 、 hall測試儀、紫外?可見分光光度計和x光電子能譜等分析測試手段,研究了樣品的表面形貌、晶體結構、光學和電學性能等。A patch antenna with air holes in the substrate has been designed. the finite - difference time - domain ( fdtd ) method together with the perfectly matched layer ( pml ) boundary treatment has been used to study the performance of the antenna. it is shown that the surface waves are significiently suppressed, the frequency bandwidth is improved, the sidelobe levels are reduced and consequently the gain in the forward direction is improved by 14 db ( about 4 db higher than the value reported previously )
設計了一種基底鉆周期圓孔結構的電磁(光子)晶體貼片天線,用fdtd方法並結合pml吸收邊界條件對該天線進行了研究,結果表明本文所設計的基底鉆孔型電磁晶體貼片天線取得了多方面的性能改善,與普通天線相比,基底中的表面波受到很大抑制,天線的帶寬增加,遠場方向圖上天線的旁瓣和背瓣被明顯削弱,向前輻射的增益由原來的12db增加到26db ,增加了14db ,比文獻上報道的gonzalo等人的研究結果提高了4db 。Obtaining structure and function of proteins is one of the main purposes of research in biology, but determining three - dimensional structure of protein by means of x - rays crystallography and nuclear magnetic resonance spectroscopy, and research in protein structure by the way of biochemistry, already can ’ t adapt the need of the rapid increase of protein sequence
獲取蛋白質的結構和功能是生物學研究的重要目的之一,但是使用x光晶體衍射和核磁共振技術等實驗手段測定蛋白質的三維結構,以及使用生物化學方法研究蛋白質的功能時效率不高,已經無法適應蛋白質序列飛速增長的需要。The performance of the pbg antenna using the new pbg cover together with a pbg substrate is studied by the fdtd method together with the pml boundary treatment. the numerical results show that a more focused beam radiated in the broadside direction is achieved. the gain of the pbg patch antenna in the forward direction is improved by about 6 db. the radiation directivity is improved significantly and reaches 11. 5 db, which is 0. 4 db less than the maximum value that is allowed physically for this size of the antenna ( this difference is about 4. 1 db less than the difference achieved by thevenot et al.,
用fdtd方法並結合pml吸收邊界條件,我們對加了這種新的覆層結構並且基底鉆孔的復合結構電磁(光子)晶體貼片天線的性能進行了研究,結果證明加了這種新的電磁晶體覆層結構以後,天線的波束收攏很多,並且向前輻射的增益大大提高,與普通天線相比,天線的e面和h面方向圖上向前輻射的增益均提高了約6db ,另外,該復合結構天線的方向性系數達到了11 . 5浙江大學博士學位論文db ,與該物理尺寸天線的方向性系數的理論極限值( 11 . 9db )相差0 . 4db ,該差值比thevenot等人設計的電磁晶體覆層天線的相應差值減少了約4 . 1db ,比qiu等人設計的電磁晶體天線的相應差值減少了約1General model c38 dc meters are portable taut - band suspended moving coil instruments with light - spot indication. the meters have the feature of extremely high in sensitity and small in consumpition being particularly suitable to be used for measuring weak electric quantity on dc circututs, also for testing the static paramenters of transistors as well for measuring the output of millivolt values of zhermocouple in the vacuun furnaces ( or hydrogen furnaces )
C38型直流電表是磁電系張絲支承光點指示可攜式電表儀表具有極高的靈敏度,功耗小,特別適合弱電量直流電路測量及晶體管靜態參數測試用以及用做真空爐(或氧氣爐)中測量熱電偶的輸出毫伏值Through the calculation of the electromagnetic green ' s function, we investigate the spontaneous emission behavior from atoms in one - dimensional photonic crystal. we found that the pc effect may lead to the coexistence of both accelerated and inhibited decay processes
通過計算一維光子晶體中電磁場的green函數,我們考察了一維光子晶體中原子自發發射的壽命分佈,發現光子晶體效應能使原子自發發射速率加快或減慢。In 6. 635, topics covered include : special relativity, electrodynamics of moving media, waves in dispersive media, microstrip integrated circuits, quantum optics, remote sensing, radiative transfer theory, scattering by rough surfaces, effective permittivities, random media, green ' s functions for planarly layered media, integral equations in electromagnetics, method of moments, time domain method of moments, em waves in periodic structures : photonic crystals and negative refraction
本課程所覆蓋的論題包括:狹義相對論、運動媒質的電動力學、色散媒質中的波、微帶集成電路、量子光學、遙感、輻射傳輸理論、粗糙表面上的散射、有效介電系數、隨機媒質、平面層狀媒質的格林函數、電磁學中的積分方程、矩量法、時域矩量法、周期結構中的電磁波:光子晶體和負折射率。Its effectiveness is also exhibited in the patch antenna with a perfect magnetic conductor ( pmc ) substrate and a pbg cover. 3
這種光子晶體覆層的有效性也在具有理想磁導體( pmc )基底與pbg覆層的貼片天線中得到了展現。This paper introduces the experimental progress about the decision of the cms collaboration to construct a precision electromagnetic calorimeter with a new type photoelectron readout device ( apd ) and a new type crystal ( pbwo4 )
摘要介紹了在中國參加的cms國際合作組用新型雪崩光電二極體和新型鎢酸鉛晶體構造新型電磁量能器實驗研究的進展情況。As one of its sub - detectors, the electromagnetic calorimeter ( emc ) made of csi crystals, is mainly used to measure the energies and positions of electrons and photons coming out from interactions
Bes的電磁量能器( electromagneticcalorimeter , emc )是北京譜儀多個子探測器中的一個,採用csi晶體結構,主要用來測量反應末態電子和光子的能量和位置信息。Study of bidyig magneto - optical crystal materials used in fiber communication
用於光纖通信的bidyig磁光晶體材料研究So the research on these new materials is becoming more and more important. we collected and analyzed the overseas and domestic sufficient date for the optical characteristics of magneto - optic crystal. then we bring forward a research topic in varying magnetic field on some crystals optical characteristics such as the angle of rotation, the depolarization ratio and so on
本文在對國內外有關磁光晶體光學特性研究狀況進行調研之後,從外界磁場對晶體光學特性的影響這一角度出發,在大范圍可調諧磁場下,對幾種不同的磁光晶體的光學特性,諸如faraday旋轉角、退偏度等進行了測定。In order to measuring the changes of optical polarization in magneto - optic crystals, it is necessary to establish an optical system in which the changes can be measured
為測定磁光晶體在大范圍磁場下的光學偏振特性變化,必須搭建一個測量系統。The optical system is established, in which the change of polarization state for magneto - optic crystal can be measured in continuous adjustable magnetic field ( 0 s1. 5 t ), and the method to improve test system is given
摘要搭建了磁光晶體的磁致偏振特性測試系統,此系統可在連續可調磁場下( 0 ~ 1 . 5t )對磁光晶體的磁致偏振特性進行測試。The theory on magneto - optic effect and the course of the research on magneto - optic crystals are discussed in the first chapter. being based on these, the idea of measuring the optical characteristics in varying magnetic field is brought about
在第一章緒論部分,對磁光效應理論的發展及磁光晶體的研製與應用進程進行了概述,基於國內外研究現狀,提出在可調諧磁場下對磁光晶體的光學特性變化進行測量與研究。In the optical communication system, the magneto - optic crystal is the most important part of magneto - optical devices, such as magneto - optic modulator, magneto - optic isolator, magneto - optic circulator and so on. the optical characteristics of the magneto - optic crystal will influence the working performance of the devices
磁光晶體在光通信用磁光式器件如磁光調制器、磁光隔離器、磁光環行器等中是其核心組成部分之一,它的光學特性直接關繫到器件工作性能的優劣。As we know the theoretical basis of all magneto - optical devices are various kinds of magneto - optic effect, the changes of these optical characteristics will be influenced by the variation of the external magnetic field
由於各類磁光器件的理論基礎是各種磁光效應,磁光晶體中這些光學特性受磁場影響的變化將會直接影響其工作性能。In order to improve the performance of magneto - optical devices, the most important method to obtain the ideal purpose is to research the optical characteristics of the crystals. in these latter years, many new magneto - optic materials have been produced
對改良磁光式器件而言,除對各分立器件組合及設計進行研製外,最重要也是最有可能獲得理想結果的便是對作為其核心部件之一的磁光晶體的光學特性進行研究。分享友人