光子

Effect of finite bandwidths of laser fields on electromagnetically induced two-photon transparency and absorption enhancement.

激光场的线宽对双光子电磁感应光透明及共振吸收增强的影响。

The purpose of this paper is to study the electromagnetism characters of one-dimensional photonic crystal containing left-handed materials.

本文将这两种奇特的材料结合起来，研究含左手物质的一维光子晶体的电磁特性。

The excited electron jumps to a higher energy level and falls back to a lower level, emitting a photon with a given energy.

被激发的电子首先跃迁到更高的能级，然后回落到较低能级，同时辐射一个具有一定能量的光子。

EDFA includes a job to be in 980 or 1, the laser pump of 480 accept rice, it can raise the electron higher energy level.

假如领受到的光信号波长在L或C波段，那么在发射与输入光信号雷同波长的光子后，这些电子将降入低能量级。

The photon energy is given by, and hc = 1239 (eV × nanometer), where eV stands for electron volt and 1 nanometer is 10-9 meters.

光子能量，其中 hc = 1239，eV 表示1电子伏特， 1 nm 等於10-9 米。

The Monte Carlo method for Photon-Electron's transport was used to calculate the γ spectra of NaI detector by peak broadening of electronic pulse height tally.

利用光子和电子联合输运MCNP程序的电子脉冲计数类型的能峰展宽模拟计算NaI探测器的γ能谱，与实验结果符合较好。

It has been demonstrated that this kind of materials are applicable in a wide range fields, such as nonlinear optics, two-photon absorption and emission materials, electron-transporting and emissive materials in organic light-emitting devices as well as chemisensors.

这类材料已经显示出非常广阔的潜在应用前景，可以用作非线性光学材料、双光子吸收和发光材料、有机电致发光器件中的电子传输材料和发光材料以及化学传感器等。

It has been demonstrated that this kind of materials are applicable in a wide range fields, such as nonlinear optics, two-photon absorption and emission materials, electron-transporting and emissive materials in organic light-emitting devices as well as chemosensors.

这类材料已经显示出非常广阔的潜在应用前景，可以用作非线性光学材料、双光子吸收和发光材料、有机电致发光器件中的电子传输材料和发光材料以及化学传感器等。

We calculate energy band structures of photonic crystals of several structuresas well.

我们对几种结构的三维光子晶体能带进行了计算。

The substance of this process are: photon energy into electrical energy conversion process.

这个过程的的实质是：光子能量转换成电能的过程。

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。