光子

This is will be where the Photon Energy envelops the Earth plane and the three days of darkness begin.

这将会是光子能量笼罩整个地球表面和三天的黑暗开始之时。

This is will be where the Photon Energy envelops the Earthplane and the three days of darkness begin.

这将会是光子能量笼罩整个地球表面和三天的黑暗开始之时。

Variational regularity of the normalized equivalent radius( r norm= r/Λ) with normalized frequency is found out for different photonic crystal fiber parameters.

该分析和结果可为利用有效折射率法分析光子晶体光纤时等效芯半径的选取提供一定的理论依据。

The analysis shows that it is important to obtain stable self—pulses by changing the photon lifetime of two orthogonal polarization modes in the erbium —doped fiber laser.

结果表明，掺铒光纤激光器中两正交偏振模光子寿命的调节对获得稳定的自脉冲有着十分重要的作用。

The error analysis of limit theory about background survey by the ideal photon detector.

理想光子探测器背景探测极限理论的误差分析。

The fidelities of the system surge periodically from 0 to 1 for the etceteras Bell state at original time when average photon number of two-mode entangled coherent states cavity fields are very small.

对于好腔，若原子初始时刻处于相干保持态，系统保真度呈指数单调衰减；若原子初始时刻处于其余Bell态之一，系统保真度呈指数振荡衰减，且随着腔场初态的平均光子数的增加，系统保真度的振荡频率增大，振幅减小。

A system design of reactive ion etcher, which is based on the demand of photonic crystal fabrication, is presented in this paper from the angle of research and experiment. And then the demonstration is also presented.

本文基于光子晶体的实验室制备的需要，从科研和实验应用的角度，提出了一种反应离子刻蚀机的设计方案并对之进行论证。

In soft-photon approximation, the average excitation energy only appears in the first and second order terms of field frequency.

在软光子近似下，平均激发能仅出现在光场频率的一阶和二阶项上。

Two-photon excitation provides potential application in the detection of single biomolecules and medical diagnosis.

前言：近年来，在生物医学研究领域中，一种独具三维处理能力和极高分辨本领的技术———双光子技术正悄然显示出其变革性的应用潜力。

The finite field method is used to calculate difference of dipole moment of theground state and excited state.

然后利用上述结果，用少态模型计算分子的双光子吸收截面。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。