PIN结构自扫描光电二极管列阵

从自扫描光电二极管列阵（ＳＳＰＡ）的工作原理出发，提出采用外延、离子注入、推阱的技术，研究一种新颖的高响应度的ＰＩＮ结构的ＳＳＰＡ器件，详细的分析了工艺设计方案和实验方法，最后提供了样品的测试参数。     

光电二极管列阵在涂料电脑测色配色仪中的应用

论述了CCPD光电二极管列阵的性能、特点,列阵的控制电路,列阵光电信号计算机数据采集及其在涂料电脑测色配色仪中的应用。     

新型光电探测器列阵的实验研究

本文对一种适用于光互连网络的新型光电探测器件列阵进行了实验测试工作。设计了一个测试列阵器件的光互连系统,系统的时钟光点阵由二位相光栅产生,测试所需的信号光点阵由一个２×８的ＳＥＥＤ器件对时钟光进行调制产生。对一个２×８的探测器列阵进行了实验测试工作,该探测器列阵中的探测单元的工作频率可达１００Ｍｂｉｔ／ｓ。     

非晶硒化镉快速光电探测器瞬态光电导的测试研究

报道了淀积条件对非晶态硒化镉（α－ＣｄＳｅ）薄膜微区结构的影响，并对利用α－ＣｄＳｅ薄膜为光敏介质的快速光电探测器的瞬态光电导进行了比较深入的测试研究。     

40Gbit／s高速并行12信道光接收模块的研制

研究并制作了12信道并行光接收模块,单信道传输速率大于等于3．318Gbit／s,12信道并行总传输速率为40Gbit／s。模块采用工作波长在850nm的高速PIN型光电探测器（PD）列阵作为光接收器件,PD列阵与接收电路芯片直接用Au丝压焊连接,输入光信号直接由12信道的光纤阵列耦合进入PD列阵中。对光接收模块进行眼...     

SSPA周边杂散光对响应度不均匀性的影响

根据实验现象，用半导体光电效应的基本原理，定性分析了自扫描光电二极管列阵周边杂散光对响应度不均匀性的影响，从装置和列阵结构上提出了相应的改进措施，有效地解决了列阵首尾部分二极管响应度的不均匀性。     

CMOS成像器用深红外光电二极管

基于半导体的成像器有许多种类型,其中包括CCD、光电二极管列阵、电荷注入器件以及混成焦平面列阵。CCD常被用于图像获取,特别是小尺寸成像     

窄禁带半导体光电二极管的最新进展（上）

当前红外探测器的许多研究工作是致力于改进单元器件和大规模电子扫描列阵器件的性能,致力于获得较高的探测器工作温度。研究工作的另一个重要目标是促使这些红外探测器价格更便宜,使用更方便。本文提出了窄禁带半导体光电二极管性能的调研情况,讨论了各种红外光电二极管技术的最新进展,这些器件是：ＨgCdTe光电二极管、ＩnSb光电二极管、可替代ＨgCdTe的由Ⅲ－Ⅴ族和Ⅱ－Ⅵ族元素组成的三元合金光电二极管,以7及单片硫化铅一类的光电二极管。调查了这些光电二极管的性能,它们的工作波段包括：短波红外（ＳＷＩＲ）：１μm－３μm;长波红外（ＬＷＩＲ）：８μm－１４μm。与其它类型的光子探测器相比,ＨgCdTe探测器的工作温度较高,在中波红外区域,ＨgCdTe探测器使用热电致冷器工作,器件性能可能达到背景限水平,而长波ＨgCdTe红外探测器则需要工作在大约１００Ｋ的温度。与其它探测器比较焉,ＨgCdTe探测器的特点是吸收系数和量子效率较高,而热产生速率则相对较低。     

1.52μm红外光电探测器

利用ＰｔＳｉ与Ｐ－Ｓｉ接触，研制成功肖特基势垒红对光电探测器（简称ＰｔＳｉ／Ｐ－ＳｉＩＲ－ＳＢＤ）。在液氮温度（７７Ｋ）下，对１．５２μｍ红外光，它的灵敏度为２．６９×１０－２Ａ／Ｗ，量子效率为２．４％，反偏４Ｖ时的漏电流为５×１０－５μＡ。此外，对ＰｔＳｉ／Ｐ－ＳｉＩＲ－ＳＢＤ的量子效率进行了计算机模拟计算。     

N型GaN的持续光电导

本文报道了金属有机物化学气相外延（ＭＯＶＰＥ）生长的未人为掺杂和掺Ｓｉｎ－ＧａＮ的持续光电导（ＰｅｒｓｉｓｔｅｎｔＰｈｏｔｏｃｏｎｄｕｃｔｉｖｉｔｙ——ＰＰＣ）．在不同温度下观察了光电导的产生和衰变行为．实验结果表明,未人为掺杂和掺Ｓｉｎ－ＧａＮ的持续光电导和黄光发射可能起源于深能级缺陷,这些缺陷可以是ＶＧａ空位、ＮＧａ反位或者ＶＧａ－ＳｉＧａ络合物．和未人为掺杂样品Ａ相比,样品Ｂ中因Ｓｉ的并入导致ＧａＮ中的深能级缺陷增加,提高了ＧａＮ中黄光发射,使持续光电导衰变减慢,但实验未发现黄光的加强和光电导衰变特     

Resolution Enhancement Technology:Integrated Process Solutions using OPC

DUV lithography, using the 248 nm wavelength, is a viable manufacturing option for devices with features at 130 nm and less. Given the low kl value of the lithography, integrated process development is a necessary method for achieving acceptable process latitude. The application of assist features for rule based OPC requires the simultaneous optimization of the mask, illumination optics and the resist.Described in this paper are the details involved in optimizing each of these aspects for line and space imaging.A reference pitch is first chosen to determine how the optics will be set. The ideal sigma setting is determined by a simple geometrically derived expression. The inner and outer machine settings are determined, in turn,with the simulation of a figure of merit. The maximum value of the response surface of this FOM occurs at the optimal sigma settings. Experimental confirmation of this is shown in the paper.Assist features are used to modify the aerial image of the more isolated images on the mask. The effect that the diffraction of the scattering bars (SBs) has on the image intensity distribution is explained. Rules for determining the size and placement of SBs are also given.Resist is optimized for use with off-axis illumination and assist features. A general explanation of the material' s effect is discussed along with the affect on the through-pitch bias. The paper culminates with the showing of the lithographic results from the fully optimized system.     

Cost-effective test solutions for smart card and other integrated flash applications

From its emergence in the late 1980s as a lower cost alternative to early EEPROM technologies, flash memory has evolved to higher densities and speedsand rapidly growing acceptance in mobile applications.In the process, flash memory devices have placed increased test requirements on manufacturers. Today, as flash device test grows in importance in China, manufacturers face growing pressure for reduced cost-oftest, increased throughput and greater return on investment for test equipment. At the same time, the move to integrated flash packages for contactless smart card applications adds a significant further challenge to manufacturers seeking rapid, low-cost test.     

Theoretical analysis of the relationship between the Brillouin gain coefficient and the strain in the optical-fiber sensors

The relation between the power of the Brillouin signal and the strain is one of the bases of the distributed fiber sensors of temperature and strain. The coefficient of the Bfillouin gain can be changed by the temperature and the strain that will affect the power of the Brillouin scattering. The relation between the change of the Brillouin gain coefficient and the strain is thought to be linear by many researchers. However, it is not always linear based on the theoretical analysis and numerical simulation. Therefore, errors will be caused if the relation between the change of the Brillouin gain coefficient and the strain is regarded as to be linear approximately for measuring the temperature and the strain. For this reason, the influence of the parameters on the Brillouin gain coefficient is proposed through theoretical analysis and numerical simulation.     

An improved parallel thinning algorithm with two subiterations

The parallel thinning algorithm with two subiterations is improved in this paper. By analyzing the notions of connected components and passes, a conclusion is drawn that the number of passes and the number of eight-connected components are equal. Then the expression of the number of eight-connected components is obtained which replaces the old one in the algorithm. And a reserving condition is proposed by experiments, which alleviates the excess deletion where a diagonal line and a beeline intersect. The experimental results demonstrate that the thinned curve is almost located in the middle of the original curve connectivelv with single pixel width and the processing speed is high.     

Novel fiber-optical interferometer with miniaturized probe for in-hole measurements

Today, micro-system technology and the development of new MEMS （Micro-Electro-Mechanical Systems） are emerging rapidly. In order for this development to become a success in the long run, measurement systems have to ensure product quality. Most often, MEMS have to be tested by means of functionality or destructive tests. One reason for this is that there are no suitable systems or sensing probes available which can be used for the measurement of quasi inaccessible features like small holes or cavities. We present a measurement system that could be used for these kinds of measurements. The system combines a fiber optical, miniaturized sensing probe with low-coherence interferometry, so that absolute distance measurements with nanometer accuracy are possible.     

Study of waveguide coupling efficiency in hybrid silicon lasers

This paper presents a new method to increase the waveguide coupling efficiency in hybrid silicon lasers. We find that the propagation constant of the InGaAsP emitting layer can be equal to that of the Si resonant layer through improving the design size of the InP waveguide. The coupling power achieves 42% of the total power in the hybrid lasers when the thickness of the bonding layer is 100 nm. Our result is very close to 50% of the total power reported by Intel when the thickness of the thin bonding layer is less than 5 nm. Therefore, our invariable coupling power technique is simpler than Intel＇s.     

Teleportation of an arbitrary unknown N-qubit entangled state under the controlling of M controllers

A new quantum protocol to teleport an arbitrary unknown N-qubit entangled state from a sender to a fixed receiver under M controllers(M < N) is proposed. The quantum resources required are M non-maximally entangled Greenberger-Home-Zeilinger (GHZ) state and N-M non-maximally entangled Einstein-Podolsky-Rosen (EPR) pairs. The sender performs N generalized Bell-state measurements on the 2N particles. Controllers take M single-particle measurement along x-axis, and the receiver needs to introduce one auxiliary two-level particle to extract quantum information probabilistically with the fidelity unit if controllers cooperate with it.     

Diode-end-pumped Nd:YVO4/LBO lasers with 4.2W continuous-wave output at 457 nm

A continuous-wave (CW) 457 nm blue laser operating at the power of 4.2 W is demonstrated by using a fiber coupled laser diode module pumped Nd: YVO4 and using LBO as the intra-cavity SHG crystal With the optimization of laser cavity and crystal parameters, the laser operates at a very high efficiency. When the pumping power is about 31 W, the output at 457nm reaches 4.2 W, and the optical to optical conversion efficiency is about 13.5% accordingly. The stability of the out putpower is better than 1.2% for 8 h continuously working.     

A rigorous proof of MIMO channel capacity’s increase with antenna number

It is well known that adding more antennas at the transmitter or at the receiver may offer larger channel capacity in the multiple-input multiple-output（MIMO） communication systems. In this letter, a simple proof is presented for the fact that the channel capacity increases with an increase in the number of receiving antennas. The proof is based on the famous capacity formula of Foschini and Gans with matrix theory.     

Call for Papers

正Wireless Body-area Networks The last decade has witnessed the convergence of three giant worlds:electronics,computer science and telecommunications.The next decade should follow this convergence in most of our activities with the generalization of sensor networks.In particular with the progress in medicine,people live longer and the aging of population will push the development of wireless personal networks