查询词典 photon

The two-photon absorption cross-sections of these styryl derivatives were determined by Z-scan technique, and the benzothiazolium derivatives exhibited the largest TPA cross-sections (10〓s·cm〓/photon) and the best power limiting ability at high operable incident intensity. The results show that the benzothiazolium derivatives are promising organic compounds as two-photon absorption optical limiting materials. 2. Several organic dyes active to 800nm femtosecond laser with D-π-A structure were designed and synthesized.

研究了它们的上转换荧光、上转换激射和光限幅行为，通过改变染料分子共轭体系的大小，首次实现了在576nm-635nm范围内的双光子上转换激光波长的调节，其中噻唑啉碘盐类二苯乙烯化合物的双光子上转换激射峰（576nm）是迄今在1064nm皮秒激光作用下能够得到的最短波长的激光；阴离子显著改变上转换激射效率，但对上转换荧光峰和激射峰的位置影响很小；增加溶液的浓度，上转换荧光光谱和激射光谱红移，并在一定的浓度范围内，能够有效的提高上转换激射效率；利用Z-扫描技术测定了染料分子的双光子吸收截面，发现苯并噻唑类染料分子的双光子吸收截面高达10〓s·cm〓／photon，而且在较大的入射光强范围内，这类染料分子具有较大的光限幅能力，是一类作为双光子吸收光限幅材料很有潜力的染料分子。

It is shown that either the deep Compton or the double photon production processes can be used to probe the structure of photon and proton, as well as to test the mechanism of quark and gluon fragmentation to photon.

我们证明了，在HERA条件下，无论是深度Compton过程，还是双光子产生过程都能够用于研究光子、质子的结构函数，以及研究夸克或胶子的光子碎裂机制。

Based on the objective lens and voice coil motor of the current DVD pickup head,according to photobleaching three-dimensional (3D) optical information storage's theory of two-photon absorption,the Ti∶sapphire femtosecond pulse laser was used as written optical beam and reading optical beam of two-photon three-dimensional optical storage voice coil motor was carried through multiplayer choice, and the storage and readout experimental study of binary format code with two-photon photobleaching in the new photobleaching material consisting of stilbene derivant was conducted.

基于现有的DVD光头物镜与音圈电机，根据光致漂白的双光子吸收三维光信息存储原理，以钛蓝宝石飞秒脉冲激光进行双光子光信息写入和读出，利用音圈电机进行选层，在新型光致漂白材料二苯乙烯衍生物中进行光致漂白二进制编码信息的存储和读出实验研究；实现了三层光信息存储，信息点间距和信息层间距分别为4 μm和15 μm；用Matlab软件读出信息的信号强度并对其进行了识别，识别结果与写入的二进制编码信息完全一致。

This photon frequency dependence of the two-photon absorption coefficient has been fairly interpreted by the Dinu model.

利用现有的Dinu理论模型解释了双光子吸收系数谱的这种频率特性。

the quantization of photon exprees the process of the quatization producing, energy was quantizated by studing black body radiation, that studies two experiments about the quantization of photon: photoelectric effect and compton effect.

光的量子性阐述了量子性产生的过程，通过对黑体辐射的研究把能量量子化，从而研究了光量子性的两个实验：光电效应和康普顿效应。

Full quanta theory was used in analysis the working principle of laser, educed the photon states of single pattern radiate in two energy-step system, and simulated the establishment of laser mode and statistical distribute of photon.According to elf consistent equations of RLG; build the simulated program with LabWindows/CVI and do some simulation experiments,The result of simulation matched the theory perfect perfectly and conform to the experiments, the locked-in and pattern competition coursed the periodic light intensity.

在激光陀螺自洽场方程组的基础上，运用LabWindows/CVI软件建立了灵活方便的激光陀螺仿真平台，并进行仿真试验，仿真试验结果与理论分析很好的相符合，且能够较好地说明陀螺试验现象，即在闭锁阈值附近，由于闭锁效应和模竞争相互影响，使得激光腔中两行波相互关联，光强差随时间呈周期性变化。

Compared to BMVC,9E-BHVC has many better features needed by a two-photon probe,such as larger two-photon action cross sections,stronger affinity to DNA and better water-solubility.

BMVC和9E-BHVC在DNA中有较高的量子效率(23.6%和38.9%)和大的活性吸收截面(45.08 GM和90.64 GM)，且对DNA具有高的亲和力结合常数分别为5.2×10~6M(-1和7.8×10~6M~(-1)。

In this dissertation, novel cyanine dyes and triphenylamine-based derivatives were synthesized, and their applications in organic solar cells, two-photon absorption, two-photon induced fluorescence and electroluminescence were studied.

本论文设计合成了一系列新型的菁染料和三苯胺类小分子化合物和聚合物，研究了它们在有机太阳能电池、双光子吸收和荧光、电致发光中的应用性能。

In the hypothesis, it is assumed that the photoreceptor outer segment is a cylindrical-like structure, while a photo enters the outer segment, the possibility of the impact between the photon and a photopigment molecule is maximal if the photon's travel path parallels to the axis of the cyclinder.

其理论系假设光感细胞的外节为一圆柱状结构，当光子进入到光感细胞的外节部分时，若其路径与此柱状结构的轴向平行，其碰撞到光色素分子的机率会最高，因此所产生的响应将最大。

The design of the working circuit of PMT in photon counting system affected the detectability of photon counting system.

光子计数系统中光电倍增管的外围工作电路设计得是否合理，对光子计数系统的性能有很大影响。

I'm not an actor. I'm a professor of paleontology.

我不是演员，我是古生物学教授

Spider Network Web site that is a very image of the name.

网络蜘蛛即Web Spider，是一个非常形象的名字。