1.Objective: To investigate the waveform of the first-order kernel and second-order kernel of multifocal electroretinogram stimulated by light emitting diode (LED) from the normal eyes, and compare it to the wave stimulated by cathode ray tube (CRT).
目的:观察正常眼由二极管发光器(light emitting diode,LED)诱发的多焦视网膜电图(multifocal electroretin-nogram,mfERG)的一阶及二阶波形特点及变化趋势,并分析其与阴极射线管(cathode ray tube,CRT)刺激器诱发的mfERG的区别。
2.A 0. 98μm Laser Diode Pumped Erbium-Doped Fiber Amplifier with 40nm Bandwidth
A 0．98μm Laser Diode Pumped Erbium－Doped Fiber Amplifier with 40nm Bandwidth
3.Single Frequency Operation of Diode-pumped Intracavity Frequency Doubled Nd:YAG Laser with Tilted KTP Crystal: Theoretical Study
Single Frequency Operation of Diode－pumped Intracavity Frequency Doubled Nd：YAG Laser With Tilted KTP Crystal： Theoretical Study
4.Here, beam shaping for a typical laser diode array (LDA) with a length of 10mm through the step-mirror shaping method was simulated by using the ZEMAX EE software. Theoritical analysis results were obtained. The asymmetric laser beams emitted from the LDA were coupled into a fiber with a diameter of 600μm.
针对长10mm的典型激光二极管阵列(Laser Diode Array,LDA),使用ZEMAX EE版光学设计软件模拟了阶梯反射镜整形法,得到了从光学角度分析的理论结果,将LDA的不对称激光束耦合到直径为600μm的光纤中,理论整形效率达到约82%。
5.This paper introduces a kind of 3mm pulsed IMPATT oscillator. By means of tunable amplitude slope pulse current injecting into IMPATT diode and stabilization frequency with a resonated cavity of high quality factor,the oscillator exhibits that it can supply strong power with high oscillation frequency and good frequency stability.
介绍一种3mm 波脉冲雪崩管振荡器,采用顶部斜率可调的脉冲电流给雪崩管(IMPATT Diode)供电, 应用高 Q 腔谐振稳频,具有振荡频率高,输出功率大,频率稳定性好等优点。
6.Dynamics of R-L-Diode System
R-L-Diode系统的动力学
7.Tunable diode laser absorption spectroscopy(TDLAS) technique is a new method to detect trace-gas qualitatively or quantificationally based on the scan characteristic of the diode laser to obtain the absorption spectra in the characteristic absorption region. It needs to combine with a long absorption path in the ambient trace-gas measurements.
可调谐二极管激光吸收光谱(TDLAS)技术是利用二极管激光器波长调谐特性,获得被测气体在特征吸收光谱范围内的吸收光谱,从而对污染气体进行定性或定量分析。
8.Using these, materials, we have obtained a 144 mW output power with 3.84% efficiency at 56.5 GHz,a noise figure of 2.4 dB with an associated gain of 6.5dB at 9.3 GHz and a continuous power output of 3W with 20.2% efficiency at 8.57GHz for the Gunn diode, FET and IMPATT diode respectively.
场效应晶体管在9.3GHz下,噪声系数2.4dB,相关增益6.5dB; 崩越二极管在8.57GHz下,连续波输出功率达3W,效率20.2％。
9.A numerical method is presented to analyze the discharge process of REB accelerator with Blumlein forming line. This method can deal with the conducting delay of the gas switch and the impedance variation of the vacuum diode during the discharge process. We calculated the voltage waveform on the diode.
提出的分析强流电子束加速器放电过程的方法可对具有导通时延的气体开关、Blumlein脉冲形成线、阻抗非恒定的真空二极管负载组成的放电系统进行数值计算 ,所得负载上电压波形能较好地与实验符合
10.For a magnetic field of 2.5 T,diode voltage of 710 kV,and diode current of 10 kA,the conversion efficiency is 26.6% with a microwave frequency of 7.5 GHz and a power of 1.21 GW.
在磁场为2.5T、二极管电压为710 kV、电流为10 kA的条件下,获得了频率为7.5GH z、微波功率为1.21GW、转换效率为26.6%的微波输出。
