光子

The excimer laser produces radiation with high photon energy which is capable of breaking the molecular bonds to ablate the cornea directly.

ArF准分子激光由于光子能量大，可打断分子键，直接达到切割和消融角膜组织的目的。

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。

This is a common phenomenon in semiconductors since the photon-excitation rate is the greatest at the absorption edge where the absorption index is fairly low and the dispersion is small.

激发光的主峰在吸收光谱的吸收边缘，这是由于在此条件下吸收指数相对低散射也很小，光子的激发速度最大）。

The nonlinear absorption and nonlinear refractive index of porous silicon/DR1 composite films at 1064nm have been measured respectively.

用单光束扫描法研究了多孔硅／DR1复合膜的三阶非线性光学性质，测量了在1064nm处多孔硅／DR1复合膜的双光子吸收系数和非线性折射率。

Based on the experimental results, the multiphoton ionization dissociation mechanics of acetone was discussed.

根据实验结果对丙酮分子在该波长范围内的多光子电离机理作了讨论。

The photonic collection efficiency factor was estimated to be about 0.759 by potassium ferrioxalate actinometry.

以草酸铁钾化学光量计曝光试验对其光学性能进行了评价，光子采集效率约为0.759。

Alternatively, the spectral softening above 2 GeV could be due to gamma-ray absorption via photon-photon pair production on the soft X-ray photon field of the host active galactic nucleus, but such an interpretation would require the dissipation region to be located very close (l~100 gravitational radii) to the black hole, which would be inconsistent with the X-ray spectrum of the source.

另外的关于2 GeV以上能谱变软的可能解释是高能光子和寄主活动星系核的软X射线辐射场通过电子对产生反应而被吸收，但是这个解释要求反应区域要很靠近中心黑洞(1~100倍引力半径)，这和3C 454.3的X射线测量谱相矛盾。

Composite hexagonal air hole lattice photonic crystal fiber dispersion of - Abstracts - China ...

复合六边形空气孔格点光子晶体光纤的色散特性分析--论文摘要--中国。。。

In Doppler effect, Gravitational red shift and Compton effect as it changes frequency the photons (including γphoton ) always abide by constant principle of light speed ,which proved that the photon has zero mass.

在多普勒效应，重力红移和康普顿效应中，光子在频率发生变化时总是遵守光速不变原理，由此证明了光子具有零质量。

It is found that Kerr effect has a great influence on the non-classical photon statistics in the case of large single-photon detuning in the system.

结果表明：当单光子失谐量较大时，Kerr效应对光场与级联三能级原子非共振相互作用系统的光子非经典统计性质有较大影响。

Shop assistant: Please check at the door.

店员：请您到门口柜台交费。

In the end, transportation of PAHs in the environmental matrix was preliminarily investigated and discussed according to PAHs data of soils and sediments from a certain region in Shanghai. The result indicated that there are two or more pathways on PAHs transportation in the environmental matrix.

最后，对上海特定地区内PAHs在环境介质中的迁移径途进行了分析讨论，结果表明上海市土壤和沉积物等环境介质中PAHs的迁移存在多种途径。