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Liquid Crystal IR (λ = 2-6 μm) Image Converter Based on CdSe(Ag) 基于CdSe(Ag)的液晶IR (λ = 2-6 μm)图像转换器
Spatial Light Modulators and Applications Pub Date : 1900-01-01 DOI: 10.2351/1.5058041
G. I. Berezina, N. A. Dovgaleva, I. N. Kompaneta, A. Parfenov, I. V. Pirkulov, Y. Popov, N. A. Prokopov, I. P. Vasilishcheva, P. N. Lebedev
{"title":"Liquid Crystal IR (λ = 2-6 μm) Image Converter Based on CdSe(Ag)","authors":"G. I. Berezina, N. A. Dovgaleva, I. N. Kompaneta, A. Parfenov, I. V. Pirkulov, Y. Popov, N. A. Prokopov, I. P. Vasilishcheva, P. N. Lebedev","doi":"10.2351/1.5058041","DOIUrl":"https://doi.org/10.2351/1.5058041","url":null,"abstract":"Photoelectric parameters and spatial-temporal light modulation characteristics of a structure based on CdSe(Ag) and nematic liquid crystal, sensitive in the region of λ = =2-6 μm, are considered.","PeriodicalId":188204,"journal":{"name":"Spatial Light Modulators and Applications","volume":"23 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":"133745387","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
Polarization Behavior of a Ferroelectric Liquid Crystal Light Valve 铁电液晶光阀的极化特性
Spatial Light Modulators and Applications Pub Date : 1900-01-01 DOI: 10.1364/slma.1993.sme.6
W. Xue, N. Collings
{"title":"Polarization Behavior of a Ferroelectric Liquid Crystal Light Valve","authors":"W. Xue, N. Collings","doi":"10.1364/slma.1993.sme.6","DOIUrl":"https://doi.org/10.1364/slma.1993.sme.6","url":null,"abstract":"Surface stabilized ferroelectric liquid crystal spatial light modulators (FLCSLM's) might be used in both neural network and optical interconnect applications","PeriodicalId":188204,"journal":{"name":"Spatial Light Modulators and Applications","volume":"45 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":"132129908","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
Improved photorefractive performance from a special cut of BaTiO3. 一种特殊切割的BaTiO3提高了光折变性能。
Spatial Light Modulators and Applications Pub Date : 1900-01-01 DOI: 10.1364/slma.1988.wc1
J. Ford, Y. Fainman, Sing H. Lee
{"title":"Improved photorefractive performance from a special cut of BaTiO3.","authors":"J. Ford, Y. Fainman, Sing H. Lee","doi":"10.1364/slma.1988.wc1","DOIUrl":"https://doi.org/10.1364/slma.1988.wc1","url":null,"abstract":"Photorefractive materials have been used to construct optically controlled spatial light modulators (SLMs) using incoherent erasure of an index grating1 and using photorefractive gain2. An SLM should provide high resolution, large aperture, low noise and crosstalk, and fast time response. If gain is to be provided it should be high, and uniform to within the 3db criterion3. Among the currently available photorefractive materials, barium titanate has the best performance characteristics for optical signal processing applications requiring gain. It provides large index modulation, high sensitivity, reasonable response times, and crystals of good optical quality are available. However, utilization of these characteristics in a regularly cut crystal (with faces parallel to the (100), (010) and (001) crystallographic planes) introduces certain operational difficulties. To overcome these difficulties we have prepared a specially-cut crystal of BaTiO3, with faces parallel to the (100), (011), and \u0000(011¯) crystallographic planes. In this paper, we will evaluate the performance of crystals with this orientation for information processing and particularly for SLM applications.","PeriodicalId":188204,"journal":{"name":"Spatial Light Modulators and Applications","volume":"5 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":"125666351","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
Real-Time Programmable Joint Transform Correlator with a Threshold Hard-Clipping Microchannel Spatial Light Modulator 带有阈值硬裁剪微通道空间光调制器的实时可编程联合变换相关器
Spatial Light Modulators and Applications Pub Date : 1900-01-01 DOI: 10.1364/slma.1988.fb1
Feng Yu, Q. Song, Y. Suzuki, M. Wu
{"title":"Real-Time Programmable Joint Transform Correlator with a Threshold Hard-Clipping Microchannel Spatial Light Modulator","authors":"Feng Yu, Q. Song, Y. Suzuki, M. Wu","doi":"10.1364/slma.1988.fb1","DOIUrl":"https://doi.org/10.1364/slma.1988.fb1","url":null,"abstract":"A programmable real-time optical joint transform correlator that generates sharper autocorrelation peaks is presented. In the system, a Microchannel spatial light modulator (MSLM) is utilized as the threshold hard-clipping square-law device. A liquid crystal television (LCTV) is used, with a microcomputer, to display input target and reference image at the input plane. By using the feed-back loop, in principle, the system would offer adaptive processing capability. A preliminary experimental result is given.","PeriodicalId":188204,"journal":{"name":"Spatial Light Modulators and Applications","volume":"8 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":"125355634","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
Ferroelectric liquid crystal spatial light modulators and their applications to information processing 铁电液晶空间光调制器及其在信息处理中的应用
Spatial Light Modulators and Applications Pub Date : 1900-01-01 DOI: 10.1364/slma.1995.lthc2
S. Fukushima, T. Kurokawa
{"title":"Ferroelectric liquid crystal spatial light modulators and their applications to information processing","authors":"S. Fukushima, T. Kurokawa","doi":"10.1364/slma.1995.lthc2","DOIUrl":"https://doi.org/10.1364/slma.1995.lthc2","url":null,"abstract":"There has been increasing interest in optical processing because it is two-dimensional and massively parallel. One of the most important devices for optical parallel processing is the optically-addressed spatial light modulator. Providing logic and memory functions, it would be used to implement flexible processing. We have developed a ferroelectric liquid crystal spatial light modulator (FLC-SLM) with these kinds of functions and fast response.1 This paper describes the device and some of its uses in information processing.","PeriodicalId":188204,"journal":{"name":"Spatial Light Modulators and Applications","volume":"15 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":"134362385","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
Experimental Investigation of Free Space Optical Interconnects. 自由空间光互连的实验研究。
Spatial Light Modulators and Applications Pub Date : 1900-01-01 DOI: 10.1364/slma.1995.ltuc1
A. J. Stevens, J. Gourlay, S. Samus, W. Hossack, D. Vass, D. C. Burns
{"title":"Experimental Investigation of Free Space Optical Interconnects.","authors":"A. J. Stevens, J. Gourlay, S. Samus, W. Hossack, D. Vass, D. C. Burns","doi":"10.1364/slma.1995.ltuc1","DOIUrl":"https://doi.org/10.1364/slma.1995.ltuc1","url":null,"abstract":"Free space optical interconnects have applications in many optical systems such as crossbars, optical neural networks and telecommunications. The interconnect may be implemented in two ways; by the use of static holographic elements to fan out the input channels onto a modulating plane which allows only the only the appropriate channels to propagate1,2, or by using a dynamic holographic element to provide direct interconnection3,4. Ferroelectric, liquid crystal over silicon spatial light modulators (FLC/VLSI SLM’s) have been demonstrated to be suitable elements as both an amplitude modulating plane addressed by holographic elements, and as a phase modulating plane for encoding dynamic holograms. The aim of this paper is to assess the capabilities of FLC/VLSI SLM’s in both these roles using experimental test systems. In order to do this, performance criteria such as scalability, diffraction efficiency, uniformity, contrast ratio, optical throughput, and switching speed shall be considered. Finally, the analysis of these results will provide an insight into the performance of future FLC/VLSI SLM’s in optical free space routing systems.","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":"129083764","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
The Phase Retrieval Method Using Optoelectronic Fourier Processor 基于光电傅里叶处理器的相位恢复方法
Spatial Light Modulators and Applications Pub Date : 1900-01-01 DOI: 10.1364/slma.1990.tuc8
N. Dmitriyev
{"title":"The Phase Retrieval Method Using Optoelectronic Fourier Processor","authors":"N. Dmitriyev","doi":"10.1364/slma.1990.tuc8","DOIUrl":"https://doi.org/10.1364/slma.1990.tuc8","url":null,"abstract":"Recent increasing interest to the phase problem is due to adaptive optic systems design and research in the field of transparent objects computer tomography.The restriction,imposed on the phase of analysed field E(x,y)= = | K(x,y) | exp [i<£(x,y)] in the phase contrast devices, is widely known:<£(x,y) must be small,so that <£(x,y)« re .As for the iterative procedures of Gershberg -Saxton1 and Soathwell,2 phase distribution retrieval according to autocor- lation function 9 etc, ’s these algorithms are likely to be considered as a proof of existence of the phase problem solution rather then a methods which can be readily used in practice.","PeriodicalId":188204,"journal":{"name":"Spatial Light Modulators and Applications","volume":"243 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":"133522836","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
Self Assembly SLM for Molecular Computing 用于分子计算的自组装SLM
Spatial Light Modulators and Applications Pub Date : 1900-01-01 DOI: 10.1364/slma.1993.swd.1
H. Szu, A. Tate, D. Cullin, Marianne Walch, D. Demske, Joseph Garcia, S. Phuvan, N. Caviris
{"title":"Self Assembly SLM for Molecular Computing","authors":"H. Szu, A. Tate, D. Cullin, Marianne Walch, D. Demske, Joseph Garcia, S. Phuvan, N. Caviris","doi":"10.1364/slma.1993.swd.1","DOIUrl":"https://doi.org/10.1364/slma.1993.swd.1","url":null,"abstract":"Spatial Light Modulator (SLM) useful Molecular Computing is made on a bacteriorhodopsin (BR) molecule film suspended in a viscous liquid medium, similar to a wet photograph but having adaptive and finer pixels.\u0000 The natural synergism between the thermal diffusion of BR molecule (induced externally by a write-laser) and its photochromism (generated internally by electronic transitions) is demonstrated in an edge-enhanced laser-image application.","PeriodicalId":188204,"journal":{"name":"Spatial Light Modulators and Applications","volume":"52 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":"133933492","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
Optical Pattern Recognition using an Optically Addressed Spatial Light Modulator. 使用光寻址空间光调制器的光学模式识别。
Spatial Light Modulators and Applications Pub Date : 1900-01-01 DOI: 10.1364/slma.1988.the15
Janine M. Vaerewyck, H. Caulfield
{"title":"Optical Pattern Recognition using an Optically Addressed Spatial Light Modulator.","authors":"Janine M. Vaerewyck, H. Caulfield","doi":"10.1364/slma.1988.the15","DOIUrl":"https://doi.org/10.1364/slma.1988.the15","url":null,"abstract":"The purpose of this paper is to discuss the first results of a continuing study on the use of a Spatial Light Modulator in a pattern recognition system. The specific SLM that is being studied was built by Lockheed Missiles and Space Company Inc. of Palo Alto Ca.1 and is on loan to the University of Alabama in Huntsville. This SLM, an optically addressed device, is being used as a spatial filter in a pattern recognition system. The results of a computer study into the most advantageous use of the SLM will be presented as well as the experimental test plan that has been devised from these results.","PeriodicalId":188204,"journal":{"name":"Spatial Light Modulators and Applications","volume":"90 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":"133237017","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
Electrically and Optically Addressable Spatial Light Modulators Based on n-i-p-i Doping Superlattices 基于n-i-p-i掺杂超晶格的电和光可寻址空间光调制器
Spatial Light Modulators and Applications Pub Date : 1900-01-01 DOI: 10.1364/slma.1995.ltha1
G. Döhler, P. Kiesel, M. Kneissl, N. Linder, K. Gulden, P. Riel, X. Wu, J.S. Smith
{"title":"Electrically and Optically Addressable Spatial Light Modulators Based on n-i-p-i Doping Superlattices","authors":"G. Döhler, P. Kiesel, M. Kneissl, N. Linder, K. Gulden, P. Riel, X. Wu, J.S. Smith","doi":"10.1364/slma.1995.ltha1","DOIUrl":"https://doi.org/10.1364/slma.1995.ltha1","url":null,"abstract":"In this paper three different versions of n-i-p-i based spatial light modulators will be discussed: 1) optically addressed modulators, based on the large non-linear absorption changes, 2) electrically addressed modulators with largely improved performance characteristics, and 3) optically addressed \"smart modulators\", consisting of a combination of fast detectors with gain with electro-optical modulators.","PeriodicalId":188204,"journal":{"name":"Spatial Light Modulators and Applications","volume":"29 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":"132609462","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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