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Spatial Light Modulators and Applications最新文献

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Comparison of spatial light modulators for multipath delay estimation 空间光调制器在多径延迟估计中的比较
Spatial Light Modulators and Applications Pub Date : 1900-01-01 DOI: 10.1364/slma.1990.tuc9
M. Ward, C. Keefer, David J. Grucza, S. Welstead
{"title":"Comparison of spatial light modulators for multipath delay estimation","authors":"M. Ward, C. Keefer, David J. Grucza, S. Welstead","doi":"10.1364/slma.1990.tuc9","DOIUrl":"https://doi.org/10.1364/slma.1990.tuc9","url":null,"abstract":"A spatial light modulator (SLM) may be used to variably tap and weight an acousto-optic (AO) delay line. This SLM application occurs in the optical signal processing of multipath delays from radar or other communication sources, as has been demonstrated with various electro-optic processing architectures1.2,3. These multipath delays signal must be estimated and suppressed to ensure optimal system performance. In the architecture presented here, the SLM must accurately select and weight various delays of a signal that propagate across an acousto-optic modulator. This paper reports the relative performance characteristics of the following spatial light modulators used in this application: an AO deflector used as an SLM (AOSLM), a liquid crystal television display (LCD) and a magneto-optic SLM (MOSLM).","PeriodicalId":188204,"journal":{"name":"Spatial Light Modulators and Applications","volume":"13 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115493288","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 3
Self-Learning Optical Neural Network 自学习光学神经网络
Spatial Light Modulators and Applications Pub Date : 1900-01-01 DOI: 10.1364/slma.1990.mb4
Francis T. S. Yu, T. Lu, D. Gregory
{"title":"Self-Learning Optical Neural Network","authors":"Francis T. S. Yu, T. Lu, D. Gregory","doi":"10.1364/slma.1990.mb4","DOIUrl":"https://doi.org/10.1364/slma.1990.mb4","url":null,"abstract":"One of the features in neural computing must be the adaptability to changeable environment and to recognize unknown objects. In general, there are two types of learning processes that are used in the human brain; supervised and unsupervised learnings [1]. In a supervised learning process, the artificial neural network has to be taught when to learn and when to process the information. Nevertheless, if an unknown object is presented to the artificial neural network during the processing, the network may provide an error output result. On the other hand, for unsupervised learning (also called self-learning), the students are learning by themselves, in which based on simple learning rules and their past experiences. Kohonon's model is one of the simplest self-organizing algorithms[1], which is capable of performing statistical pattern recognition and classification, and it can be modified for optical neural network implementation. A compact optical neural network of 64 neurons using liquid crystal televisions is used for unsupervised learning process[2].","PeriodicalId":188204,"journal":{"name":"Spatial Light Modulators and Applications","volume":"208 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115904079","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
A Self-amplified Beam-Steering Technique for Programmable Optical Interconnections 一种可编程光互连的自放大波束导向技术
Spatial Light Modulators and Applications Pub Date : 1900-01-01 DOI: 10.1364/slma.1993.swc.5
Hua-Kuang Liu, S. Zhou, P. Yeh
{"title":"A Self-amplified Beam-Steering Technique for Programmable Optical Interconnections","authors":"Hua-Kuang Liu, S. Zhou, P. Yeh","doi":"10.1364/slma.1993.swc.5","DOIUrl":"https://doi.org/10.1364/slma.1993.swc.5","url":null,"abstract":"A self-amplified angularly multiplexed beam-steering technique for programmable interconnection and optical computing applications is presented.","PeriodicalId":188204,"journal":{"name":"Spatial Light Modulators and Applications","volume":"66 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114340716","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Electro-Optic Thin Film Spatial Light Modulator using an Epitaxial Film of Bi12SiO20 利用Bi12SiO20外延膜的电光薄膜空间光调制器
Spatial Light Modulators and Applications Pub Date : 1900-01-01 DOI: 10.1364/slma.1990.wd2
Y. Nagao, Y. Mimura
{"title":"Electro-Optic Thin Film Spatial Light Modulator using an Epitaxial Film of Bi12SiO20","authors":"Y. Nagao, Y. Mimura","doi":"10.1364/slma.1990.wd2","DOIUrl":"https://doi.org/10.1364/slma.1990.wd2","url":null,"abstract":"We have newly developed a thin film-spatial light modulator (TF-SLM) using an epitaxial film of Bi12SiO20 (BSO) which is capable of a high resolution and a fast voltage-controlled erasure operation. In this paper, its structure, operation, and preliminary experimental results are described.","PeriodicalId":188204,"journal":{"name":"Spatial Light Modulators and Applications","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116916586","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
General Thin-Lens Action on Spatial Intensity Distribution Behaves as Non-Integer Powers of Fourier Transform 一般薄透镜作用在空间强度分布上表现为傅里叶变换的非整数次幂
Spatial Light Modulators and Applications Pub Date : 1900-01-01 DOI: 10.1364/slma.1988.the4
L. F. Ludwig
{"title":"General Thin-Lens Action on Spatial Intensity Distribution Behaves as Non-Integer Powers of Fourier Transform","authors":"L. F. Ludwig","doi":"10.1364/slma.1988.the4","DOIUrl":"https://doi.org/10.1364/slma.1988.the4","url":null,"abstract":"This paper shows that the classical equations for the action of a thin-lens on the spatial intensity distribution of light [3] behave generally as non-integer powers of the Fourier transform [1,2] for separation distances within the lens-law boundary.","PeriodicalId":188204,"journal":{"name":"Spatial Light Modulators and Applications","volume":"27 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123203849","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Future Roles of Spatial Light Modulators in Advanced Computing Architectures 空间光调制器在先进计算架构中的未来作用
Spatial Light Modulators and Applications Pub Date : 1900-01-01 DOI: 10.1364/slma.1988.we1
J. Neff
{"title":"Future Roles of Spatial Light Modulators in Advanced Computing Architectures","authors":"J. Neff","doi":"10.1364/slma.1988.we1","DOIUrl":"https://doi.org/10.1364/slma.1988.we1","url":null,"abstract":"One of the areas of computer architecture with the most rapid growth is that of parallel multiprocessors - an interconnection of anywhere from a few processing elements (PEs) to millions of PEs operating in parallel on the same problem. Attempts at solutions to many difficult problems in the past resulted in a rapid increase in complexity of software. With the continuing decline in the cost of hardware, attention has turned toward mapping such problems on massively parallel machines. For example, knowledge base searching can be done by pursuing many paths in parallel rather than following a complex algorithm that attempts to guide a serial search in an optimum fashion. The result is that many more computations are performed when following the parallel approach, with most not leading to a solution; however, the correct solution will most often be arrived at much sooner.","PeriodicalId":188204,"journal":{"name":"Spatial Light Modulators and Applications","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121957124","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
4×4 Fiber Optic Crossbar Switch using the Deformable Mirror Device 4×4使用变形镜设备的光纤交叉开关
Spatial Light Modulators and Applications Pub Date : 1900-01-01 DOI: 10.1364/slma.1990.tua4
T. McDonald, R. M. Boysel, J. Sampsell
{"title":"4×4 Fiber Optic Crossbar Switch using the Deformable Mirror Device","authors":"T. McDonald, R. M. Boysel, J. Sampsell","doi":"10.1364/slma.1990.tua4","DOIUrl":"https://doi.org/10.1364/slma.1990.tua4","url":null,"abstract":"The Deformable Mirror Device (DMD) is a micromechanical spatial light modulator that offers both amplitude and/or phase modulation. It is comprised of small mirror elements suspended above silicon addressing circuitry by small hinges attached to support posts. [Ref. 1] The pixel can be made to rotate about its hinge axis by applying a potential difference between the pixel and the addressing electrode. Both area array and linear DMDs have been built and found application in several areas. [Ref. 2, 3, 4]","PeriodicalId":188204,"journal":{"name":"Spatial Light Modulators and Applications","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116813350","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Computer Generated Hologram Reconstruction using Liquid Crystal Spatial Light Modulators 利用液晶空间光调制器进行计算机生成全息图重建
Spatial Light Modulators and Applications Pub Date : 1900-01-01 DOI: 10.1364/slma.1993.stua.1
T. Sonehara, J. Amako, H. Miura
{"title":"Computer Generated Hologram Reconstruction using Liquid Crystal Spatial Light Modulators","authors":"T. Sonehara, J. Amako, H. Miura","doi":"10.1364/slma.1993.stua.1","DOIUrl":"https://doi.org/10.1364/slma.1993.stua.1","url":null,"abstract":"Liquid Crystal Devices (LCDs) have been widely used for Spatial Light modulators (SLMs) because of its easy operating characteristics.","PeriodicalId":188204,"journal":{"name":"Spatial Light Modulators and Applications","volume":"28 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128556368","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Characterization of the optical quality and modulating properties of a PLZT modulator through Mueller matrix imaging polarimetry 用Mueller矩阵成像偏振法表征PLZT调制器的光学质量和调制特性
Spatial Light Modulators and Applications Pub Date : 1900-01-01 DOI: 10.1364/slma.1995.lthb3
J. Pezzaniti, E. A. Sornsin, R. Chipman, B. Mansoorian
{"title":"Characterization of the optical quality and modulating properties of a PLZT modulator through Mueller matrix imaging polarimetry","authors":"J. Pezzaniti, E. A. Sornsin, R. Chipman, B. Mansoorian","doi":"10.1364/slma.1995.lthb3","DOIUrl":"https://doi.org/10.1364/slma.1995.lthb3","url":null,"abstract":"The Physics Department at the University of Alabama in Huntsville (UAH) in collaboration with the Electrical and Computer Engineering Department of University of California, San Diego (UCSD) has applied Mueller matrix imaging polarimetry[1] to quantifying the polarization modulating properties of PLZT spatial light modulators. The purpose of this study was to evaluate the optical quality of a wire-bonded transmissive PLZT (9/65/35) modulator array, the uniformity of modulation across pixels, and the cross-talk between adjacent pixels.","PeriodicalId":188204,"journal":{"name":"Spatial Light Modulators and Applications","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129372847","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Liquid Crystal Device Performance Degradation through Selective Adsorption of Ions by Alignment Layers 取向层选择性吸附离子对液晶器件性能的影响
Spatial Light Modulators and Applications Pub Date : 1900-01-01 DOI: 10.1364/slma.1995.lthd3
S. H. Perlmutter, D. Doroski, G. Moddel
{"title":"Liquid Crystal Device Performance Degradation through Selective Adsorption of Ions by Alignment Layers","authors":"S. H. Perlmutter, D. Doroski, G. Moddel","doi":"10.1364/slma.1995.lthd3","DOIUrl":"https://doi.org/10.1364/slma.1995.lthd3","url":null,"abstract":"We have found selective adsorption to be responsible for the observed increase in liquid crystal ion populations as test cells are driven. Increasing ion populations correlated well with evidence of increased shielding of an applied voltage. A number of different alignment layers were compared for their tendency toward selective absorption. To investigate the interaction between ions and the alignment layers, in addition to liquid crystals a number of alcane liquids with known ionic components were used in test cells. A computer-implemented simulation of ion behavior was developed and used to verify our interpretations of our experimental results.","PeriodicalId":188204,"journal":{"name":"Spatial Light Modulators and Applications","volume":"156 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127357259","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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