Optical Society of America Annual Meeting最新文献

Diode laser arrays 二极管激光阵列

Optical Society of America Annual Meeting Pub Date : 2005-11-01 DOI: 10.1017/CBO9780511524127

D. Botez, D. Scifres

引用次数: 136

Content addressable networks 内容可寻址网络

Optical Society of America Annual Meeting Pub Date : 1996-10-03 DOI: 10.1364/oam.1992.mbb6

S. A. Brodsky

引用次数: 14

Bispectral imaging through unknown deterministic aberrations 通过未知确定性像差的双光谱成像

Optical Society of America Annual Meeting Pub Date : 1995-07-01 DOI: 10.1080/09500349514551331

Donald T. Miller, D. Cho, G. Morris, David Williams

{"title":"Bispectral imaging through unknown deterministic aberrations","authors":"Donald T. Miller, D. Cho, G. Morris, David Williams","doi":"10.1080/09500349514551331","DOIUrl":"https://doi.org/10.1080/09500349514551331","url":null,"abstract":"When the deterministic aberrations are known in an optical system, traditional de-blurring methods, such as the Wiener filter and aberration compensating filters, are effective. However, when the aberrations are difficult to quantify, as are telescope aberrations or the aberrations in the human eye, more practical methods are needed. One potential method for de-blurring a system with unknown aberrations is the bispectral imaging method. This image recovery technique reconstructs the object's Fourier phase by using a sequence of statistically independent aberrated images of the spatially incoherent object. It has been found to be promising in removing the effects of deterministic aberrations when random aberrations are present or are artificially introduced into the system.1, 2 Through computer simulations, we have found the correct amount of random aberrations to have present in a system containing deterministic aberrations to optimize the image quality of the reconstruction at high light levels. Defocus and several third order aberrations were considered in the isoplanatic case. The performance of this method was characterized by reconstructing a point source and computing its Strehl ratio. These results will be used to incorporate the bispectral imaging method as part of a noninvasive technique to reconstruct high resolution images of the eye's fundus in human subjects. Computer simulated images will be presented.","PeriodicalId":406038,"journal":{"name":"Optical Society of America Annual Meeting","volume":"26 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1995-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134219570","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: 4

Comparison between holographic and guided-wave interconnects for VLSI multiprocessor systems VLSI多处理器系统中全息与导波互连的比较

Optical Society of America Annual Meeting Pub Date : 1995-06-30 DOI: 10.1017/CBO9780511563898.005

M. Feldman, J. L. Camp, Rohini Sharma, J. Morris, John N. Lee

{"title":"Comparison between holographic and guided-wave interconnects for VLSI multiprocessor systems","authors":"M. Feldman, J. L. Camp, Rohini Sharma, J. Morris, John N. Lee","doi":"10.1017/CBO9780511563898.005","DOIUrl":"https://doi.org/10.1017/CBO9780511563898.005","url":null,"abstract":"The performance of guided-wave and holographic optical interconnects are compared to each other and to conventional electrical interconnects for use in high-performance very-large-scale integration (VLSI) parallel computing systems. The comparison is based on chip-to-chip communication within and between VLSI thermal-conduction multichip modules. The interconnects are evaluated in terms of maximum data transmission rate, power dissipation, crosstalk, and connection density as a function of the number of processors in the system. Previous comparisons between optical and electrical interconnects1 for intrachip communication neglected transmission line effects. Because of the range of interconnect lengths (1–10 cm), both transmission-line and lumped RC line effects must be taken into account for electrical connections. Also, the light propagation delay for both holographic and guided-wave connections are significant. Owing to the high index of refraction of guided-wave systems, they have a longer propagation delay than do free-space systems. Advantages and disadvantages of multiplexing several signals over the optical connections have been analyzed. Detector circuit amplifiers, optimal in the sense that they minimize total power dissipation, have been designed.","PeriodicalId":406038,"journal":{"name":"Optical Society of America Annual Meeting","volume":"270 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1995-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123821834","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

Inverse problems with quasi-homogeneous random media utilizing scattered pulses 利用散射脉冲的拟齐次随机介质逆问题

Optical Society of America Annual Meeting Pub Date : 1995-03-01 DOI: 10.1080/09500349514550601

D. Fischer, B. Cairns

引用次数: 18

Soft-x-ray optics 软x射线光学

Optical Society of America Annual Meeting Pub Date : 1994-06-01 DOI: 10.1117/3.176482

E. Spiller

引用次数: 404

Generalization of complex Snell–Descartes and Fresnel laws 复杂斯涅尔-笛卡儿和菲涅耳定律的推广

Optical Society of America Annual Meeting Pub Date : 1994-03-01 DOI: 10.1364/JOSAA.11.001159

M. Dupertuis, M. Proctor, B. Acklin

引用次数: 70

Improved spatial and temporal performance of a phase-conjugate resonator using an intracavity-mode homogenizer 利用腔内模均质器改进相位共轭谐振器的空间和时间性能

Optical Society of America Annual Meeting Pub Date : 1994-02-01 DOI: 10.1364/JOSAB.11.000339

G. Dunning, S. McCahon, M. Klein, D. Pepper

{"title":"Improved spatial and temporal performance of a phase-conjugate resonator using an intracavity-mode homogenizer","authors":"G. Dunning, S. McCahon, M. Klein, D. Pepper","doi":"10.1364/JOSAB.11.000339","DOIUrl":"https://doi.org/10.1364/JOSAB.11.000339","url":null,"abstract":"We utilized an intracavity-mode homogenizer to increase the number of transverse modes and improve the temporal stability of a linear phase conjugate resonator (PCR). Unlike conventional resonators in which intracavity lenses can be used to enlarge the mode volume, an equivalent PCR may not produce the same spatial and temporal characteristics. We attribute these effects to the nonuniform reflectivity of the PCM as a function of input angle and to gain competition. We increased the mode volume and improved the stability of the output beam by introducing a 20-cm long rectangular light pipe in conjunction with a phase aberrator. The light pipe mapped each region of the conventional mirror into a large number of spatial modes before striking the PCM. Thus, all regions of the conventional mirror experience the same reflectivity at the PCM. In four-wave mixing experiments, the light pipe increased the angular width of the PCM reflectivity from 10° (with no light pipe) to 25°, FWHM. In resonator experiments with the intracavity light pipe, the oscillation of a 3.5-mm diameter transverse mode could be controlled from on-axis operation to 11-mm off-axis. In addition, temporal instabilities in the output pattern were reduced.","PeriodicalId":406038,"journal":{"name":"Optical Society of America Annual Meeting","volume":"132 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1994-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131458752","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: 2

Optoneural system for invariant pattern recognition 不变模式识别的光学系统

Optical Society of America Annual Meeting Pub Date : 1993-09-01 DOI: 10.1139/p93-063

Claude Lejeune, Y. Sheng

引用次数: 0

Uncertainty-limited atomic position measurement using optical fields 利用光场的不确定度限制原子位置测量

Optical Society of America Annual Meeting Pub Date : 1993-06-30 DOI: 10.1364/oam.1990.fr4

John E. Thomas

引用次数: 0