輻射發光現象 的英文怎麼說
中文拼音 [fúshèfāguāngxiànxiàng]
輻射發光現象
英文
radiophotoluminescence- 輻 : 名詞(車輪中車轂和輪圈的連接物) spoke
- 射 : Ⅰ動詞1 (用推力或彈力送出) shoot; fire 2 (液體受到壓力迅速擠出) discharge in a jet 3 (放出) ...
- 發 : 名詞(頭發) hair
- 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) ...
- 現 : Ⅰ名詞1 (現在; 此刻) present; now; current; existing 2 (現款) cash; ready money Ⅱ副詞(臨時; ...
- 輻射 : radiation; exposure; radio; beaming
- 發光 : 1 (發出光來) give out light; shine; be luminous; brighten; fulgurate; flash; glow; sparkle; gli...
- 現象 : appearance (of things); phenomenon
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Spontaneous emission can be totally suppressed or strongly enhanced depending on the relative position of the resonant frequency from the edge of the photonic band gap and the photonic mode density. several novel phenomena can be obtained. the spontaneous emission displays an oscillatory behavior, classical light localization, photon - atom bound state, nonzero steady - state population and anomalously large vacuum rabi splitting. and localized mode associated with a defect site in an otherwise perfect photonic crystals, acts as a high - q micro - cavity
通過原子上能級與光子頻率帶隙邊緣的相對位置或者光子態密度,可以抑制或增強原子的自發輻射。分析並得到了一些奇異的現象,如自發輻射的諧振子行為、光的局域、單光子?原子局域態、上能級中存在非零穩態原子布居數、類似於真空中的拉比頻率分裂等。It is found that the fwm field can cause the asymmetry of electromagnetically induce transparency profile. in addition, the effect of different propagating orientations of probe field on the electromagnetically induced transparency is also discussed. in the molecular multi - level system with the perturbed superposition levels, we discuss the electromagnetically induced transparency, spontaneous emission enhancement, double dark resonance and double electromagnetically induced transparency by using the density matrix equation under weisskopf - winger approximation and dressed - state density matrix equation
針對實際的實驗條件,考慮了一種影響量子干涉的新的因素-四波混頻場,研究了四波混頻場對雙光子探測的-型能級體系的eit的影響,發現四波混頻場能夠導致雙光子探測的eit線型的不對稱,在此基礎上,討論了不同探測場的傳播方式對eit的影響,針對分子中實際存在的包含有微擾能級的不同多能級系統,我們分別採用綴飾態繪景下的密度矩陣方程和weisskopf - wigner近似下的密度矩陣方程詳細地討論了電磁感應透明、自發輻射的干涉相消和相長、雙暗態共振和雙電磁感應透明現象。Abstract : after reading two papers, spectral blue shift of themal radiator and some problems related to it in infrared physics and a discussion on spectral blue shift of thermal radiator, some doubts on measurement were presented. spectral blue shift was in process, which is not against the three thermal dynamic laws
文摘:看了《紅外物理中熱輻射的光譜「藍移」及與之有關的問題》和《熱輻射光譜「藍移」問題的商榷》兩文,本文對其測試條件提出質疑,並著重闡述了光譜發生「藍移」是「過程中」的現象,並不違反熱力學三定律。5. the luminescence enhancement of eu3 + was also observed after ultraviolet irradiation but was weaker than the zns : mn2 + and the branch ratio of 5d0 - 7f0 increased after irradiation. it indicates probably the contribution from the centers in the surface of nanoparticles increased
在紫外光的輻照下首次觀察到eu3 +離子發光的熒光增強現象,輻照后5d0 < wp = 5 > 7f0發射強度分支比增加,表明對稱性較低的發光中心對發光的貢獻增加,可能是處于顆粒表面的eu3 +離子對發光的貢獻增加。Furthermore, the fiber phase - conjugator has been used in ld - pumped solid - state laser system with four - pass configuration to suppress the self - oscillating ( so ) phenomena caused by amplified spontaneous emitting ( ase ) in laser amplifier. when using 200 m fiber, the energy of so has been successfully decreased from 12mj to below the precision of energy - detector
將光纖相位共軛鏡應用於四通放大結構中,有效抑制了放大級中的放大自發輻射引起的自激振蕩現象,使得自激振蕩輸出能量從12mj降低到能量計最小精度以下。In succession, the theory of chirped - pulse amplifier system is given in detail, firstly, studying from designing experimental light road and optical components to theoretical analysis, we par ' tly finished the system by ourselves. about ultr a - shoft pulse with a pulse - width of 9. 8f s and output power of 650mw and band - width of about l 20nm is output from oscillator source, secondiy, the stretching capacity of single grating four - pass stretcher is measured using abcd matrix combining collins function, and the effect of relativ e parameters to the streching ratio is also simulated. thirdly, a new type of disjunctional frequency moduiating function is provided according to the gain - narrowing and gain - saturation which are appeared in the co urse of amplification, under modulating the two effects are both controlled on some e xtent, fourthiy, the effect of ase that is often ignored by people is analyzed and the resolving methods are also given
從光路、光學元件的自行設計到理論分析計算,初步建立了一臺實驗系統;採用abcd矩陣法結合collins公式計算了四通式單光柵展寬器的展寬量,並模擬了相關參數對展寬比的影響,對實驗具有指導意義;評價了再生放大器和多通放大器的優缺點,對放大過程中通常忽略的放大自發輻射現象( ase )進行了分析,並提出了相應的解決方法;針對放大過程中出現的增益窄化和增益飽和現象,對輸入種子脈沖提出了一種新的分段頻率調制函數,實現了對增益窄化效應和增益飽和效應的共同抑制;提出了系統的材料(包括放大介質和光路中的普通介質)正是融合高階色散的來源。With the increase of the amount of al, the intensity of the pl peak at 510nm increases. with the aid of ple we can suggest that pl peak at 370nm and 410nm are related to the oxygen vacancies, and 510nm peak originate from a complex co - function of al, si, and o. el devices have been fabricated on three types of silicon based oxide films ( ge - sio2 films, si - sio2 films, and al - sio2 films )
用不同的方法制備的51一5102薄膜、 ge一510 :薄膜和al一51一5102薄膜,在較低的電壓萬均觀察到了室溫可見電致發光現象,峰位都在510nm左右,其峰位不因薄膜樣品內所含顆粒的種類、薄膜的制備方法、偏壓及后處理的影響,表明電致發光主要來源於電子和空穴在510 、基質中的發光中心的輻射復合發光。Integrating medium infrared radiation absorption phenomena and ct technology, a two - dimensional temperature distribution diagnosis method is proposed, which is named as infrared radiation absorption ct technology
借鑒此技術的基本概念,利用介質吸收輻射現象,結合ct技術,本文引入了火焰溫度兩維分佈的新測量方法?吸收發光ct法。Many novel physical phenomena such as coherent population trapping, lasing without inversion, electromagnetically induced transparency as well as spontaneous emission cancellation and enhancement based on quantum interference have been discovered
基於量子干涉效應,產生了許多新的物理現象和效應,如相干布居捕獲、無反轉激光、電磁感應透明和自發輻射相消等。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。分享友人