查询词典 photon

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。

The system Pancharatnam phase evolutes regularly when the average photon number of coherent light is small, while it becomes more chaotic as the average photon number increases.

系统Pancharatnam相位随时间的演化在平均光子数较小时表现比较有规律，但随着平均光子数的增加，它趋于混沌化。

The single photon stream can be obtained via atmospheric dispersion, some weakeners, and narrow-band optical filters. A photon-electron produced in microchannel plate is multiplied, forming a charge cloud. This event charge is collected on the Ge film and then is detected by WSA through capacitive coupling from a few millimeters behind the Ge film.

紫外光经过减光和滤光后入射微通道板，产生的光电子在微通道板内倍增后形成电子云，由呈高阻特性的半导体Ge薄膜收集后，通过电荷耦合感应到Ge膜衬底背面的位敏阳极。

Our article mainly discussed the preparation of entangled states and the application of entangled states in quantum communication, including practical scheme for remote state preparation of a photon-photon entangled state, generation and concentration of multi-atom entangled states, practical protocol for telecloning quantum states and protocol for multi-party superdense coding by using multi-atom in cavity QED.This article has several objectives.

本文主要研究了量子纠缠态的制备及纠缠态在量子通信中的应用，包括远程制备光子-光子纠缠态，产生和浓缩多原子纠缠态，利用纠缠态进行远程克隆以及通过腔QED实现多组份密集编码的方案。

The results show that the atomic population is time-independent provided that the atoms are in |β11〉 state. For the other three Bell states, there will appear the periodical collapse revival of atomic populationif the initial mean photon number reaches some special values. With the increase of the initial mean photon number, the oscillation frequency of the time-evolution of atomic population increases correspondingly, and the amplitude decreases. The degree of the entanglement of the two-mode entangled coherent field has no

结果表明，当双原子体系的初态为|β11〉时，原子布居均不随时间变化；当双原子体系的初态为|β00〉，|β01〉或|β10〉且初始平均光子数达到一定值时，演化特性呈现周期性的崩塌-回复效应，并随初始光子数的增加，其演化曲线的振荡频率增大，振幅减小；双模纠缠相干光场的纠缠程度不影响Rabi振荡频率，但对振幅影响显著； Kerr介质与光场耦合系数达到一定值时，对Rabi振荡频率和幅度及原子布居的崩塌-回复周期产生强烈影响。

Anna: No, I've got a hangover.

不是，我昨晚宿醉了。

We head into the mountains in Su's new Land Cruiser, stop for lunch at a scenic restaurant and then hang around drinking beer and eating fruit as two of his employees attempt to lure the birds with a tape recording of the fowl's mating call.

我们坐上苏的巡逻车向山顶出发，在一家风景优美的餐馆吃了中饭。然后我们喝着啤酒吃着水果四处逛。