raman light 中文意思是什麼
raman light
解釋
拉曼光-
The silver / bioanalyte suspension was pumped through a light scattering cuvette, and the enhanced raman spectrum was recorded
銀/生物混和懸浮液打入光分散玻璃管中后，記錄增強后之拉曼光譜。 -
In particular, they focused on the raman effect, a process in which the wavelength of light lengthens after it scatters off atomic vibrations
他們的研究重點集中在拉曼效應，也就是當光經由原子震蕩而散射時，光波波長增加的過程。 -
The influence of environmental light on the near - infrared laser raman spectra was studied in determination for pe plastics
摘要探討了環境光自然光和室內熒光燈光的存在，對pe透明塑料薄膜的近紅外激光拉曼光譜的影響。 -
The mms raman spectrometer has a sample holder with cover for operation in full ambient light without affecting performance
Mms拉曼光譜儀擁有一個試樣夾，該固定器的遮蓋物使分光在任何環境光線條件下都可以運轉而且不會影響其表現。 -
Secondly, basing on the theory of on - off gain of small signal, the raman gain coefficient for frequency shift between 0. 5 and 20 thz of standard sigle mode optical fiber is measured by pump - probe method through a super luminescent diode ( sld ) as a broadband small signal probe source. thirdly, numerical simulation analysis of gain characteristic of raman fiber amplifier for c band wdm signal light is made according to the raman gain coefficient of the fiber measured before through target and four rank runge - kutta method. at the invariability of wavelength and maximum power of each of two pumps, schematic of powers of two pumps for best flatness on c band wdm optical gain was found out, at the same time, the factors of resulting in gain saturation is analyzed, too
本文首先應用經典的電磁理論對拉曼光纖放大器的工作機制進行了分析，然後，根據小信號理論推導出的開關增益求出了光纖拉曼增益系數的表達式，採用泵浦-探測波的方法，利用超輻射激光二極體（ superluminescentdiode簡稱sld ）作為探測光源，測量了所用標準單模光纖頻移為0 . 5 - 20thz的拉曼增益系數，之後根據所測得的光纖的拉曼增益系數譜對應用該類光纖構成的放大c波段wdm光信號的拉曼光纖放大器的增益特性採用打靶法和四階龍格- - -庫塔進行了數值計算，在給定了兩個泵浦光源的波長和最大功率后，找出了反向泵浦情況下使c波段wdm光源增益最平坦的兩個泵浦的各自最佳功率，同時也分析了導致信號光飽和的原因。 -
We analyzed the polarizing character, threshold condition, raman shift of srs in different polarizing pumping light. in addition, the empirical formulas on stimulated raman scattering are given. theoretical analyses and experimental results are in good agreement
對它們在不同偏振態泵浦光激勵下各級stokes的偏振特性、閾值條件、喇曼頻移等各參數進行了分析，並給出了經驗公式，其結果和實驗數據符合良好。 -
Raman fiber amplifier （ rfa ） is a kind of optical amplifier that can amplify signal light directly through nonlinear interaction of high intensity pump and signal light in fiber. whereas the spectrum of raman gain coefficient of optical fiber is not flat, the gain of signal light with different wavelength induced by a single pump is rather different, when wavelength division multiplexing ( wdm ) signal light is amplified by a single pump, the gain spectrum of the wdm signal light is not flat. the flatness of the wdm signal light has important impact on the optical signal - to - noise ratio ( osnr )
拉曼光纖放大器（ ramanfiberamplifier ，簡稱rfa ）利用高強度的泵浦光與信號光在光纖中的非線性相互作用實現信號光的直接放大，但是由於光纖的拉曼增益系數譜很不平坦，所以同一泵浦光源對不同波長信號光的增益就存在很大的差別，因此，用單泵浦光源來放大波分復用（ wavelengthdivisionmulti - plexing ，簡稱wdm ）信號光時，各信號光的增益值就有很大差異， wdm信號增益的平坦度對光信噪比（ opticalsignal - noiseratio ，簡稱osnr ）有重要影響。 -
Moreover, the saturation characteristic of raman fiber amplifier is also one of the important parameters and the total power of signal light input into the fiber is limited by it
另外，飽和特性也是光放大器的重要指標之一，它限制了可以輸入光纖的總信號光功率。 -
We reported uv - visible - nir light absorption properties of silver colloid, employed as the substrate in sers ( surface - enhanced raman spectra ), under various conditions. experimental results revealed that the new absorption band in the longer wavelength region was related with chemisorption of molecules on colloidal silver surface
本論文主要進行了與上述相關的研究探討工作，包括四個部分： 1 、論文通過紫外?可見?近紅外吸收光譜研究了作為sers襯底的銀膠體系在不同情況下的光吸收特性，結果表明分子加入后在吸收譜長波方向出現新的吸收帶，取決于分子在銀表面的吸附。 -
On the other hand the crosstalk of the wdm signal at fan - out of demultiplexer will increase with the power difference of the each channel. therefore, the gain of optical amplifier to wdm signal must have small ripple. one of the solutions is using two or more pumps with different wavelength and power according to the range of signal light to be amplified and raman gain coefficient of the fiber
另外，各路信號光之間較大的功率差異會增加wdm通道解復用器輸出端的串話，所以光放大器對wdm各路信號光的增益要滿足一定的增益平坦度，解決該問題可以根據所要放大的wdm信號光的波長范圍和所用光纖的拉曼增益系數譜，採用多個不同波長和功率的泵浦光源進行泵浦。
分享友人