查询词典 photon

This thesis includes two parts. One part studied the two photon excited luminescent properties of thirty pyridinium compounds in solution, another part studied the two photon excited luminescence properties of HMASPS and HEASPS in polymer matrix.

论文分为两个部分：第一部分研究的是吡啶盐溶液的双光子上转换性质，第二部分研究的是吡啶盐HMASPS和HEASPS在聚合体系中的双光子上转换性质。

Because of the exciting prospect of this kind of materials by direct two photon excitation, thirty pyridinium compounds with six different donors and four different anions have been synthsized and their two photon excited luminescent properties have been studied.

由于这些材料诱人的应用前景，我们以这类吡啶盐为研究对象，合成并系统研究了包含6种推电子基、四种不同阴离子共30个吡啶盐的双光子上转换发光性质。

We have theoretically studied on the geometrical structure, electronic structure, one-photon absorption and two-photon absorption properties of perylene tetracarboxylic derivatives by using DFT and ZINDO methods.

用密度泛涵方法和ZINDO方法，从理论上研究了一系列四羧酸二萘嵌苯的衍生物。对其平衡几何、电子结构和单双光子吸收性质进行了详细的计算研究。

I.! y P,{7 v: R; O0 D INTRODUCTIONIn most of the previous studies like [1-3], the effect of SRS in DWDM fiber opticsystems has been treated under various assumptions like undepleted pump approximation, wavelength independent fiber loss coefficient, triangular approximation of Raman gainprofile, negligible loss of energy whenever a short wavelength photon is transformed into a long wavelength photon (i.e., l i / l k ~ 1), equal power loading in all the wavelength channels and equal channel spacing.

P _ W/ I 在以往的绝大多数研究中，如[1-3]，人们都认为， SRS 在 DWDM 光纤系统中的影响是在诸多假设，如未衰减泵近似值，波长依赖光纤损耗系数，喇曼增益表的三角近似值，当短波光子被转变为长波光子时(i.e。， l i / l k ~ 1可忽略不计的能量损耗，各波长通道均等的动力负载以及均等的信道的频率间隔。

The effect of cruciform structure on the two photon absorption action cross-section of fluorescence chromophore was reported. 1,4-Di(9'-ethyl-carbazolyl)-3'-vinylbenzene (R1) is a classic two photon absorption chromophore with D-π-D structure.

报道了十字形结构对荧光生色团的双光子吸收作用横截面积的影响。1，4-二（9'-乙基咔唑基）－3'-乙烯基苯(R1)是经典的具有D-π-D结构的TPA生色团。

Compound Ⅴ-3 has the largest two-photon absorption cross section and strongest two-photon induced fluorescence in these compounds because of its octupolar structure and the delocalized interaction among the chromophores.

由于化合物Ⅴ-3的八偶极分子结构和发色团之间的电子离域相互作用，它在三个化合物中有最大的双光子吸收截面和最强的双光子荧光。

We use photon as a particle and photon carry weak charge which can explicated wave phenomenon of light.

我们利用光的粒子性和光带有微弱电荷能够解释光的波动现象。

We have considered many factors, as energy band coupling, strained effect, photon distribution, carriers distribution, etc, theoretically. We use the more accurate physics model in the analysis of the photon gain and carriers inpouring, which makes the simulation results more approaching to practice.

理论方面把影响激光器性能的能带耦合、应变效应、光场及载流子帆布的不均匀性等诸多因素统一起来，在考虑光增益，及载流子注入方面采用了更为细致精确的物理模型，使模拟结果更接近实际。

First, the background spectrum is subtracted from experimental one; Second, by the spectrum stripping, the counts came from partial energy deposition of incidence photon in HPGe crystal, such as Compton scatting or pair production; the next, transform the experimental spectrum to the incidence photon flux spectrum.

实验数据的处理过程有三步：1 从实验谱中减掉本底谱；2 实验谱中分离掉各种能量的入射光子在晶体中的部分能量沉积(康普顿散射、电子对效应)：3 处理过的实验谱转成入射光子通量谱。比较结果显示，在本实验中，模拟谱对实验谱的总计数相对偏差不大于20%，两者基本符合。

We study the Yukawa corrections to the γγ→b cross section in the topcolor assisted technicolor models at the photon-photon colliders.

发现在合理的参数范围内，赝标量Goldstone 玻色子引起的相对修正与树图水平相比有3.17%到5.90%的压低。

For a big chunk of credit-card losses; the number of filings (and thus charge-off rates) would be rising again, whether

年美国个人破产法的一个改动使得破产登记急速下降，而后引起了信用卡大规模的亏损。

Eph. 4:23 And that you be renewed in the spirit of your mind

弗四23 而在你们心思的灵里得以更新