光电流

The main work can be summed up as follows: Firstly, we studied the thermal-field properties of VCSELs, and analyzed the influences of current spreading, material parameters and operating conditions on the temperature distributions. Secondly, we began with the electrode voltage and calculated the equipotential s distributions, compared the distributions of voltages and current densities in different depths of VCSELs, and then studied the influences of the oxide-confining region with different position or thickness, and the different sizes of the gain-guided aperture and emitting window on the distributions of the injected current density, carrier concentration and temperature in the active region. Thirdly, we realized the coupling of electricity, optical and thermal-fields, worked out the threshold voltage, calculated the distributions of the injected current density, carrier concentration and temperature under different offset voltages, and analyzed the impacts of temperature profile and carrier density on the refractive index, Fermi levels and optical-field. Finally, we gave the equipotential line distributions with considering N-DBR and double oxidized-confining regions, and analyzed theinfluences of N-DBR and double oxide-confining regions on the distributions of the current density, carrier concentration, temperature and optical-field.

具体工作可以概括如下：首先，研究了VCSEL的热场特性，分析了电流扩展，材料参数和工作条件对于温度分布的影响；其次，从电极电压入手，计算出激光器中的等势线分布，并对不同深度处的电压和电流分布进行比较，研究了高阻区的不同位置和不同厚度、限制层和出射窗口半径的大小对电流密度、载流子浓度和温度分布的影响；再次，实现了电、光、热耦合，求出了阈值电压，计算了不同偏置电压下的电流密度分布、载流子浓度分布和热场分布，分析了温度和载流子浓度变化对折射率、费米能级和光场的影响；最后，给出了考虑N-DBR和双氧化限制层时激光器中的等势线分布，分析了N-DBR和双氧化限制层对VCSEL电流密度、载流子浓度、温度和光场分布的影响。

In order to solve the problem, A new idea to obtain cross-section of traps by measuring modulated photocurrent spectroscopy at two different temperatures is also included.

本文系统地研究了用调制光电流谱法获得固体材料陷阱参数的Ohda理论，指出了该理论在确定陷阱密度分布时存在的问题，并提出了修正的方法。

The extremely weak photoelectric current measuring technology has widespread application in measuring instruments and the photoelectrical equipment manufacturing.

极微弱光电流测量技术在仪器仪表和光电设备制作中有着广泛的应用。

An extremely weak photoelectric current examination circuit is designed in view of the stability and the noise problems. The circuit includes the filtering, phase compensation and so on.

针对微信号检测中的稳定性和噪声问题设计了一种极微弱光电流检测电路，包括滤波和相位补偿等功能。

Saturation of photoelectric current ...

光电流饱和的机械专业英语参考释义

This apparatus adopted the MCS-51 singlechip as the CPU, and the whole system was composed of the determined equipment, the basic system of the singlechip, photocurrent signal amplifier, AID switch, timer, LCD screen, expanded keyboard, expanded printer and RS232 serial communication.

该仪器采用MCS-51系列的单片机AT89C51作为CPU，系统由检测装置部分，单片机基本系统，光电流信号放大，A/D转换，时钟，液晶显示，键盘扩展，打印机扩展以及RS232串口通信等部分组成。

Using the autocorrelation function, the principal of homodyne method is explored. The relationship between delay time induced by delay fiber and characteristics of additive frequency-domain fluctuation affixed on homodyne beat noise photoelectric-current spectrum are intensively analyzed.

一、利用自相关函数研究了零拍法测量激光线宽的原理，重点考察了零拍光电流谱线上所附加的频域周期性波动，确定了该波动的频域周期与光纤延时线所产生的时延成反比。

The new circuit directly digitizes the photocurrent of laser gyro successfully, and meets the need of high precision cavity length control system of laser gyro.

用设计的新电路实现了激光陀螺光电流的直接数字化，满足高精度腔长控制的要求。

That is attributable to the fall of the film resistance of the passive film and the decrease of content of chromium oxides in the passive film.

硫离子的浓度越大，测得的光电流越大，而Eg越小，这可归因于钝化膜膜电阻的降低及钝化膜中氧化铬含量的减少。

The results can show the relationship between the diode current and the operation voltage, temperature, photo lux and wavelength, respectively.

由实验结果证明，在不同波长和不同照度的光源下，此模型可成功模拟出反偏光二极体的光电流大小。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。