emission decay 中文意思是什麼
emission decay
解釋
放射衰變-
The activation effect of zn2 + modification, including enhancement of emission intensity, slowing of luminescence decay and increasing of quantum yields, results from the formation of zns shell outside the nanoparticles, which is passivating the surface of nanoparticles, eliminating the surface quenching centers, so as to block the nonradiative transition pathways through these kind of quenching centers
Zn ~ （ 2 + ）表面修飾在納米顆粒表面形成了zns殼層，鈍化了納米顆粒的表面，消除了表面猝滅中心，阻塞了通過表面猝滅中心進行無輻射躍遷的通道，從而使得發光強度增加，衰減變慢，量子效率提高。 -
Because of the continuous decay, the quantity of radioactive material and the rate of emission of radiation decrease steadily.
由於連續衰變的結果，放射性物質的數量，輻射發射率都逐漸下降。 -
By the study of the whole decay curves of 10 hours, the influence of each step is summarized, and the best stoichiometry and preparation techniques are acquired. the crystal structure of sral2o4 eu2 +, dy3 + is monoclinic system, which is a high efficiency luminescence crystal structure. the emission spectrum and the excitation spectrum of sral2o4 eu2 +, dy3 + powder are measured
此外，通過x射線衍射譜確定了所制備的sral _ 2o _ 4 ： eu ， dy長余輝材料晶體為單斜晶系結構，並測量其發射光譜，激發光譜，初步討論了sral _ 2o _ 4 ： eu ， dy長余輝蓄能材料可能的發光機理。 -
Xrd patterns, excitation spectra, emission spectra, photo - stimulated emission spectra, photo - stimulated emission decay curves and thermo - luminescence spectra have been measured on the samples
對樣品進行了x射線衍射分析（ xrd ） 、激發光譜、發射光譜、光激勵發光光譜、光激勵發光衰減和熱釋光譜測定。 -
Calculation of natural ventilation rates by tracer gas decay method was proposed, and definition of indoor criterion of carbon monoxide concentration limit and the carbon monoxide emission from cars were discussed
提出了利用示蹤氣體法計算地下停車庫的自然通風量，並論述了如何確定室內一氧化碳允許標準及小汽車的一氧化碳排放量。 -
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。 -
Based on the above work, the optical absorption and photoluminescence ( pl ) properties of a - sinx : h films with different compositions are studied through ultraviolet - visible spectroscopy ( uv - vis ) and time - resolved photoluminescence ( tr - pl ), the dependence of pl intensity decay on emission photon energy is found, the luminescence mechanism of nanosilicon embedded in silicon nitride matrix is presented, finally, the effective approaches to improving the luminescence efficiency of a - sinx : h films are discussed
在此基礎上，通過紫外-可見光譜（ uv - vis ）技術，時間分辨光致發光譜技術研究了不同組分的富硅a - sin _ x ： h薄膜的光吸收和光輻射特性，得到了材料光致發光衰減和輻射光子能量之間的關系，提出了鑲嵌在氮化硅中的納米硅的發光機制，進而探討了提高納米硅薄膜發光效率的有效途徑。 -
In 1987, a remarkable step was made by yablonovitch, who pointed out the possibility of the realization of photonic bandgaps, localized defect modes, and their applications to various optoelectronic devices, and by john who dicussed the strong localization of electromagnetic waves in disordered photonic crystals and also predicted many interesting quantum optical phenomena that can be realized in photonic crystals such as the bound state of photons and non - exponential decay of spontaneous emission
1987年yablonovitch和john開創性地提出光子晶體這一新概念， yablonovitch指出了有可能實現光子頻率帶隙和局域缺陷模以及許多光電技術方面的應用， john則討論了在無序光子晶體中電磁波的強烈局域現象，並預言在光子晶體中存在許多有趣的量子光學現象，諸如光子局域態、自發輻射的非指數衰減。 -
Then they decay by the emission of light. we can get the information about the structure of the atoms by analysis of the spectrum
束箔實驗中，離子束經過加速器的質譜分析，保證了它在同位素上是純的。
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