查询词典 photon

Based on rate equations, by use of a new method, a semiconductor optical amplifier theoretical model is constructed taking carrier density pulsation, spectral hole burning, stimulated emission, free carrier absorption, two-photon absorption and ultrafast nonlinear refraction effects into account.

基于速率方程采用新的推导方法得到了可以用来讨论飞秒量级光脉冲传输特性的半导体光放大器理论模型，该模型同时考虑载流子浓度脉动、光谱烧孔、受激辐射、自由载流子吸收、双光子吸收和超快非线性折射效应。

The results show the photon counts is linear to the concentration of sulfur dioxide from 0 to 40 ppm in volume.

实验结果表明新设计的反应室的性能得到进一步提高。

With the development of lasers and synthesization of novel nonlinearoptical materials, people begin to study on nonlinear optics, especiallymulti-photon process.

随着激光器的发展，新型非线性光学材料的合成，人们的研究方向不再拘泥于简单的线性光学，而更多的是非线性光学。

The model of range error resulting from systematic noise, mainly photon noise, is analyzed.

讨论了基于距离图像的ALV三维视觉障碍检测的算法与并行实现。

Methods Technetium 99m (99mTc) ECD single photon emission computed tomography was performed in 67 newborns with HIE.

采用锝(99mTc)乙撑双半胱氨酸二乙酯单光子发射型计算机断层摄影术对67例HIE患儿进行脑血流灌注断层显像。

Treatment methods consisted of local radiotherapy using Cobalt-60 teletherapy, megavoltage photon beam or electron beam.

局部治疗的方式利用钴60，百万电子伏特能量的光子或电子射线。

Approaches to improving the measurement precision of two-photon absorption is presented by analyzing the absorption threshold intensity.

应用吸收临界光强公式分析了提高双光子吸收系数测量精度的途径。

The total internal reflection and the system of photon scanning tunneling microscope are simulated using finite difference time domain method.

采用时域有限差分方法计算全内反射和光子扫描隧道显微镜系统。

During the transience the electron and photon populations deviate slightly from their equilibrium values respectively.

在瞬态过程中，电子和光子的密度各稍微偏离其平衡值。

The fluorescence photon-number is proportional to the excitation rate while the spontaneous-radiation rate has an optimum decided by a trigonometric equation.

发射荧光光子数与激发速率成正比，而自发辐射速率则存在一个由三角方程决定的最佳值。

I can not negligent, he should do what?

我不能不在意了，他要做什么呢？

It is very dangerous to swim in the river alone.

一个人到河里游泳是很危险的。