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| 1 | DMD光栅的衍射特性及其在可调谐激光中的应用显示文摘相比较于液晶空间光调制器,数字微镜晶片(DMD)具有开关速度快、显示精度高、偏振不相关、衍射效率高和宽带调制等优势。研究利用DMD的衍射效应作为波长选择器,将其应用于可调谐光纤激光器中,理论推导这种二维DMD光栅的衍射效率与入射光角度,像素间距等物理量之间的定量关系,重点讨论了两种不同像素间距的0.7″和0.55″DMD在单像素因子和多像素干涉共同作用下的衍射级数和强度分布。研究结果表明:0.7″DMD在光强不显著为零且满足实验约束条件下,允许出现4个干涉极大值,但由于极大值位置均远离闪耀条件,因此光强相对较弱。0.55″DMD仅出现1个干涉极大值,且接近闪耀条件,因此光强和效率均明显高于0.7″DMD的情况。由此可见,在可调谐光纤激光器中,利用0.55″DMD光栅作为波长选择器更有利于减小衍射损耗,提高系统稳定性。 | 陈笑 颜玢玢 宋菲君 王义全 肖峰 Kamal Alameh | 2012 | 光学学报2012，32，7： | 9 |
| 2 | Effective plant discrimination based on the combination of local binary pattern operators and multiclass support vector machine methods显示文摘Accurate crop and weed discrimination plays a critical role in addressing the challenges of weed management in agriculture.The use of herbicides is currently the most common approach to weed control.However,herbicide resistant plants have long been recognised as a major concern due to the excessive use of herbicides.Effective weed detection techniques can reduce the cost of weed management and improve crop quality and yield.A computationally efficient and robust plant classification algorithm is developed and applied to the classification of three crops:Brassica napus(canola),Zea mays(maize/corn),and radish.The developed algorithm is based on the combination of Local Binary Pattern(LBP)operators,for the extraction of crop leaf textural features and Support vector machine(SVM)method,for multiclass plant classification.This paper presents the first investigation of the accuracy of the combined LBP algorithms,trained using a large dataset of canola,radish and barley leaf images captured by a testing facility under simulated field conditions.The dataset has four subclasses,background,canola,corn,and radish,with 24,000 images used for training and 6000 images,for validation.The dataset is referred herein as 'bccr-segset'and published online.In each subclass,plant images are collected at four crop growth stages.Experimentally,the algorithm demonstrates plant classification accuracy as high as 91.85%,for the four classes. | Vi Nguyen Thanh Le Beniamin Apopei Kamal Alameh | 2019 | Information Processing in Agriculture2019，6，1： | 4 |
| 3 | 基于DMD滤波器的波长间隔可调谐的双波长单纵模光纤环形激光器(英文)显示文摘提出一种稳定的波长间隔可调谐的双波长单纵模环形光纤激光器.在复合环形谐振腔中,采用由数字微镜装置(DMD)滤波器和两个不同长度的次级环形谐振腔组成的多重滤波的方式来选择激光器的工作模式.其中,DMD滤波器可以从掺铒光纤的自发增益谱中任意选择两个波长并将它们耦合进光路中;次级环形谐振腔作为模式滤波器,可以保证激光器输出单纵模激射;利用非线性光子晶体光纤(HN-PCF)的四波混频(FWM)效应,使激光器输出均衡平稳的双波长激射.在室温条件下,不用移动实验装置中的任何器件,通过将位置不同的光栅映射在DMD滤波器上来实现双波长间隔可调谐,调谐范围为0.165 nm到1.08 nm,调谐步长为0.055 nm. | 王涛 刘刚 周素华 杨慧春 颜玢玢 陈笑 余重秀 桑新柱 肖峰 Alameh Kamal | 2015 | 红外与毫米波学报2015，34，6： | 3 |
| 4 | Chaining geographic information Web services 显示文摘 | Alameh N | 2003 | IEEE Internet Computing2003，7，5： | 1 |
| 5 | Analysis of nano-grating-assisted light absorption enhancement in metal–semiconductor–metal photodetectors patterned using focused ion-beam lithography显示文摘 | Narottam Das Ayman Karar Mikhail Vasiliev Chee Leong Tan Kamal Alameh Yong Tak Lee | 2010 | Optics Communications2010，，6： | 1 |
| 6 | Service Chaining of Interoperable Geographic Information Web Service显示文摘 | Alameh N | 2003 | IEEE Intemet Computing2003，7，5： | 1 |
| 7 | Chaining geographic information Web services显示文摘 | Alameh N | 2003 | Internet Computing2003，2003，7： | 1 |
| 8 | GaAs based long-wavelength microring resonator optical switches utilizing bias assisted carrier-injection induced refractive index change显示文摘 | RAVINDRAN S DATTA A ALAMEH K | 2012 | Optics Express2012，20，15： | 1 |
| 9 | 附录:《鉴别野草和农作物的特异光电子引擎》原文显示文摘 | Kamal Alameh Sreten Askraba Arie Paap John Rowe Yannan Shen Hengzhong Yan | 2010 | 物理2010，，10： | 1 |
| 10 | Obstacle detection and spectral discrimination using wide angle laser scanning显示文摘 | Sahba K Alameh K E Smith C L | 2008 | multi-wavelength motionless Optics express2008，16，8： | 1 |
| 11 | Tunable microwave signal generation based on an Opto-DMD processor and a photonic crystal fiber显示文摘Frequency-tunable microwave signal generation is proposed and experimentally demonstrated with a dual-wavelength single-longitudinal-mode(SLM) erbium-doped fiber ring laser based on a digital Opto-DMD processor and four-wave mixing(FWM) in a high-nonlinear photonic crystal fiber(PCF). The high-nonlinear PCF is employed for the generation of the FWM to obtain stable and uniform dual-wavelength oscillation. Two different short passive sub-ring cavities in the main ring cavity serve as mode filters to make SLM lasing. The two lasing wavelengths are electronically selected by loading different gratings on the Opto-DMD processor controlled with a computer. The wavelength spacing can be smartly adjusted from 0.165 nm to 1.08 nm within a tuning accuracy of 0.055 nm. Two microwave signals at 17.23 GHz and 27.47 GHz are achieved. The stability of the microwave signal is discussed. The system has the ability to generate a 137.36-GHz photonic millimeter signal at room temperature. | 王涛 桑新柱 颜玢玢 艾琪 李妍 陈笑 张颖 陈根祥 宋菲君 张霞 王葵如 苑金辉 余重秀 肖峰 Alameh Kamal | 2014 | Chinese Physics B2014，23，6： | 1 |
| 12 | Integrated 10 Gb/s AWG based correlator for multi-wavelength optical header recognition 显示文摘 | Muhsen Aljada Kamal E Alameh | 2008 | Opt Express2008，16，7： | 1 |
| 13 | Passive and active optical bit-pattern recognition structures for multiwavelength optical packet switching networks 显示文摘 | Aljada M Alameh K E Al-Begain | 2007 | Optics Express2007，15，11： | 1 |
| 14 | Analysis of nano-grating-assisted light absorption enhancement in metal–semiconductor–metal photodetectors patterned using focused ion-beam lithography显示文摘 | Narottam Das Ayman Karar Mikhail Vasiliev Chee Leong Tan Kamal Alameh Yong Tak Lee | 2010 | Optics Communications2010，，6： | 1 |
| 15 | Alveolar capillary dysplasia:a cause of persistent pulmonary hypertension of the newborn显示文摘 | ALAMEH J BACHIRI A DEVISME L | 2002 | Eur J Pediatr2002，161，5： | 1 |
| 16 | Opto-VLSI-based Photonic True-time Delay Architecture for Broadband Adaptive Nulling in Phased Array Antennas 显示文摘 | Juswardy B Xiao F Alameh K | 2009 | Optics Express2009，17，6： | 1 |
| 17 | Optical-fiber grating-basest beam form- ing networks for microwave phased arrays 显示文摘 | MINASIAN R A ALAMEH K E | 1997 | IEEE Trans MTT1997，43，12： | 1 |
| 18 | Chaining Geographic Information Web Services显示文摘 | Alameh N | 2003 | IEEE Internet Computing2003，7，5： | 1 |
| 19 | Chaining geographic information Web services 显示文摘 | Alameh N | 2003 | IEEE Intemet Computing2003，7，5： | 1 |
| 20 | Numerical model for the complex susceptibility of saturated erbium-doped amplifiers显示文摘 | R A Minasian Y Zhao | 1997 | IEEE Journal of Quantum Electronics1997，33，5： | 1 |
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