皮秒 的英文怎麼說

中文拼音 [pímiǎo]
皮秒 英文
orders of magnitude
  • 皮 : Ⅰ名詞1 （人或物體表面的一層組織） skin 2 （皮革） leather; hide 3 （毛皮） fur 4 （包在外面的一層...
  • 秒 : 量詞2 （時間計量單位） second （=1/60 of a minute）: 60 秒為1分。 sixty seconds make a minute 這...
  1. The second, the main work in the paper is discussed. they are include : the theory and character of electromagnetic leaking from a computer ; the theory of accumulation mean filter and pectination filter ; the analysis of synchronous signal precision, at 10 - 12 second level, for stably intercepting ; the technology requirement of receiver and data acquisition board for clearly displaying the images recovered from the intercepted data

    本文從計算機視頻電磁泄漏和數字濾波器兩方面的基本理論出發，詳細論述了計算機視頻信息電磁泄漏的原理及特點，指出視頻泄漏信息的頻譜是以行頻為周期的譜線；分析了重加濾波器和梳狀濾波器的性能；分析了視頻泄漏信息截獲的條件；推導出穩定截獲視頻泄漏信息需要對同步信號的精度控制在皮秒級；論述了清晰再現對接收機和數據採集卡的技術要求。
  2. Development of picosecond pulse radiolysis system at waseda university

    早稻田大學皮秒脈沖輻解裝置
  3. We apply the agrawal ' s theory model of soa, and study the temporal characteristics of the output pulse for input picosecond optical pulses with different sharpness edges passing through a semiconductor optical amplifier, and find that the peak power and the pulse width of the output pulse depend on the input pulse peak power, the sharpness degree of the input pulse edge and the bias current of soa

    本文應用agrawal的關于soa理論模型，詳細研究了具有不同陡峭邊沿的皮秒超高斯光脈沖經soa后的時域特性的變化，發現輸出脈沖的峰值功率、脈沖寬度與輸入脈沖的峰值功率、輸入脈沖邊沿的陡峭程度以及soa的偏置電流密切相關。
  4. Despite these laser - produced plasmas are small - size ( ~ 100urn ) and short - lived, with parameters changing on the scale of tens to hundreds of picoseconds, they have quite important science and practical effect

    盡管激光等離子體尺寸極小（ 100 m ）壽命短且參數以幾百皮秒的量級變化，但卻有相當重要的科學和實際作用。
  5. One of china ' s largest distributors of laboratory equipment and laser system for major foreign companies

    環球科技代理國外半導體可調諧，飛秒皮秒，固體激光器及波長計光譜儀等，具備豐富的售後服務經驗。
  6. Extremely short period pulses have been employed in this technology ( usually as short as several nanoseconds or even several picoseconds ), which results in the transmission capability of up to gigabits per second [ 1 - 4 ]. because of the high transmission rate, uwb communications are best suited for wireless personal area networks ( wpan )

    Uwb技術採用超短脈沖發射技術（納秒乃至皮秒量級） ，佔用的頻譜可達幾個ghz ，這使得其在短距離內可達到幾百兆比特的傳輸速率[ 1 - 4 ] ，該技術因此而非常適于近距離高速無線個人域網[ 2 ] （ wpan ） 。
  7. It is a novel short - distance wireless communication technique, in which data are transferred using non - sinusoidal pulses with very short duration, so it is fit for using in indoor environments which is a typical multipath environment. and it can be coexisted with the existing wireless communication systems at the same frequency band

    超寬帶通信系統利用納秒至皮秒級的非正弦波窄脈沖傳輸數據，非常適合作為城區及室內密集多徑環境下的應用，並且能夠與現有的傳統窄帶系統共存。
  8. Secondly, the third order nonlinear optical properties of these compounds are studied under the excitation of ps pulsed laser with the wavelength of 1064nm using z - scan technique, nonlinear refractive indices and nonlinear absorption coefficients are calculated according to the z - scan experiment curves of the compounds. all the three compounds have self defocusing characters and two photon absorptions. lastly, nonlinear refraction and absorption properties of these compounds are studied by z - scan technique under the excitation of ps pulsed laser with the wavelength of 532nm the self defocusing and reverse saturation absorption are found in these compounds

    根據實驗曲線計算了它們在1064nm下的三階非線性折射率和非線性吸收系數，三種化合物都具有自聚焦特性，並且在該波長下，三種化合物均具有雙光子吸收，最後，以皮秒脈沖的532nm為激發波長，採用z掃描方法，研究了三種金屬有機化合物的非線性折射和非線性吸收性質，在該波長下三種化合物仍然表現為自聚焦特性，且其吸收為反飽和吸收。
  9. The ohio state chemists used a technique called transient absorption, which is based on the idea that molecules absorb light at specific waelengths, and allows them to study eents happening in less than a picosecond

    俄勒岡州化學家採用一種技術名為」瞬時吸收「 ，原理基於不同分子吸收不同波長的光，使之能研究少於1皮秒所發生的反應。
  10. The ohio state chemists used a technique called transient absorption, which is based on the idea that molecules absorb light at specific wavelengths, and allows them to study events happening in less than a picosecond

    俄勒岡州化學家採用一種技術名為」瞬時吸收「 ，原理基於不同分子吸收不同波長的光，使之能研究少於1皮秒所發生的反應。
  11. From the analytical point of view, with the aid of the numerical simulation, we investigate the propagation properties of optical pulses for the nonlinear schrodinger equation in picosecond regime, the higher - order nonlinear schrodinger equation in femtosecond regime, the nonlinear schrodinger equation with varying gain / loss and frequency chirping in homogeneous optical fibers, and ginzberg - landau equation that describes ultrashort pulses in the presence of self - frequency shift, respectively

    本文從解析的角度出發，同時藉助各種微擾理論和數值分析方法，分別研究描述皮秒光脈沖傳輸的非線性薛定諤方程、飛秒光脈沖傳輸的高階非線性薛定諤方程、非均勻光纖中光脈沖傳輸的含有頻率啁啾和增益損耗項的非線性薛定諤方程以及描述超短光脈沖傳輸的ginzberg - landau方程的解的特性，為進一步實現超高速、大容量的光信息傳輸提供一定的理論依據。
  12. Three shaped profiles ( parabola, linear, and exponential ) have been considered. the exponential dispersion profile fiber loop is optimal for the propagation and compression of picosecond pulse. on the contrary, the parabola dispersion profile fiber loop is optimal for femtosecond pulse due to the high order effects such as the third order dispersion ( tod ), stimulated raman scattering ( srs ) and self steeping ( ss )

    （ 3 ）研究不同色散遞減類型（拋物線遞減、線性遞減、指數遞減）光纖構成的環形腔中傳輸的特性，發現其色散曲線為指數遞減型光纖有利於皮秒光脈沖的傳輸與壓縮；而對于飛秒脈沖，由於三階色散（ tod ） 、脈沖拉曼自散射（ srs ）及自變陡（ ss ）等高階非線性效應的影響，情況恰恰相反；色散曲線為拋物線遞減型的光纖構成的光纖環最有利於脈沖傳輸與壓縮。
  13. From three - wave coupling equations, the optimal crystal length, conversion efficiency and parametric light pulse width are computed numerically when clbo is used in picosecond optical parametric amplification. the results present that clbo are suited for optical parametric amplification in short wave band. in order to get higher conversion efficiency, the crystal length should be optimized according to the intensities of pump and signal waves

    從三波耦合方程出發，對clbo用於皮秒級光參量放大時，最佳晶體長度、轉換效率和參量光的脈沖寬度進行了理論分析和數值模擬，結果表明clbo晶體適合在短波范圍作光參量放大，為達到高的轉換效率和窄脈寬的信號光輸出，泵浦光和初始入射信號光的強度應根據晶體長度取最優化值。
  14. Picosecond soliton compression in the fibers with slowly decreasing dispersion

    色散緩變光纖中皮秒孤子脈沖的壓縮
  15. Effect of initial chirp on soliton - effect picosecond pulse compression in optical fibers

    初始啁啾對皮秒脈沖孤子效應壓縮的影響
  16. A method to improve the quality of soliton - effect compression of picosecond pulse in loss fibers

    一種改善損耗光纖中皮秒脈沖孤子效應壓縮效果的方法
  17. Effects of initial chirp and fiber loss on soliton - effect picosecond pulse compression in optical fibers

    初始啁啾和光纖損耗對皮秒脈沖孤子效應壓縮的影響
  18. The effect of various gain coefficient on soliton - effect picosecond pulse compression in fibers with slowly decreasing dispersion

    色散緩變光纖中增益系數的取值對皮秒脈沖孤子效應壓縮的影響
  19. The faster decays on the hundreds of the femtosecond time scale and the slower decays on the order of picosecond are found

    實驗發現兩個超快動力學過程：飛秒量級的快速弛豫過程和皮秒量級的慢速弛豫過程。
  20. And the process is exceedingly fast : experimental devices have turned electrons on their heads in a few picoseconds ( trillionths of a second )

    而且整個程序進行得極快：實驗用的裝置，只消在幾皮秒（ 10 - 12秒）以內，就能讓電子轉頭。
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