检索结果-内蒙古大学图书馆

advances in information recording /

引用

2008年

作者： Paul H. Siegel ... [et al.] editors.

来源：内蒙古大学图书馆图书评论

学校读者我要写书评

暂无评论

Massively parallel X-ray holography

引用

NATURE PHOTONICS 2008年第9期2卷 560-563页

作者： Marchesini, Stefano Boutet, Sebastien Sakdinawat, Anne E. Bogan, Michael J. Bajt, Sasa Barty, Anton Chapman, Henry N. Frank, Matthias Hau-Riege, Stefan P. Szoeke, Abraham Cui, Congwu Shapiro, David A. Howells, Malcolm R. Spence, John C. H. Shaevitz, Joshua W. Lee, Joanna Y. Hajdu, Janos Seibert, Marvin M. Lawrence Livermore Natl Lab Livermore CA 94550 USA Univ Calif Berkeley Lawrence Berkeley Lab Adv Light Source Berkeley CA 94720 USA Stanford Linear Accelerator Ctr Stanford Synchrotron Radiat Lab Menlo Pk CA 94025 USA Uppsala Univ Dept Cell & Mol Biol Lab Mol Biophys SE-75124 Uppsala Sweden Univ Calif Berkeley Lawrence Berkeley Lab Ctr Xray Opt Berkeley CA 94720 USA Arizona State Univ Dept Phys & Astron Tempe AZ 85287 USA Princeton Univ Dept Phys Carl Icahn Lab 150 Princeton NJ 08544 USA Lewis Sigler Inst Carl Icahn Lab 150 Princeton NJ 08544 USA Univ Calif Berkeley Dept Plant & Microbial Biol Berkeley CA 94720 USA DESY Ctr Free Electron Laser Sci D-22607 Hamburg Germany

advances in the development of free-electron lasers offer the realistic prospect of nanoscale imaging on the timescale of atomic motions. We identify X-ray Fourier-transform holography(1,2,3) as a promising but, so far, inefficient scheme to do this. We show that a uniformly redundant array(4) placed next to the sample, multiplies the efficiency of X-ray Fourier transform holography by more than three orders of magnitude, approaching that of a perfect lens, and provides holographic images with both amplitude-and phase-contrast information. The experiments reported here demonstrate this concept by imaging a nano-fabricated object at a synchrotron source, and a bacterial cell with a soft-X-ray free-electron laser, where illumination by a single 15-fs pulse was successfully used in producing the holographic image. As X-ray lasers move to shorter wavelengths we expect to obtain higher spatial resolution ultrafast movies of transient states of matter.

关键词： nature photonics Nature Photonics nature publishing group content journal optoelectronics optics biophotonics quantum optics cryptography spectroscopy terahertz technology light propagation lasers LEDs photovotaics fibre optics optical data storage

来源：评论

学校读者我要写书评

暂无评论

2004“advances in optical data storage technology”会议纪实

引用

记录媒体技术 2005年第1期 14-15页

作者：胡恒

光电子技术是继微电子技术后的新一代高新技术, 它在光信息、光通信、光存储、生物医学光学、激光、微光机电一体化等方面都获得了高速发展,在亚洲地区的发展速度明显高于其它地区,特别是中国的发展已引起了全世界的关注。11月8日,2... 详细信息

光电子技术是继微电子技术后的新一代高新技术, 它在光信息、光通信、光存储、生物医学光学、激光、微光机电一体化等方面都获得了高速发展,在亚洲地区的发展速度明显高于其它地区,特别是中国的发展已引起了全世界的关注。11月8日,2004亚太光电子和光通信会议正式在北京国际会议中心拉开帷幕,来自中国、美国、英国、日本、加拿大等20多个国家的3000多位学者出席了会议。

关键词：光电子技术机电一体化光存储材料光信息刻录技术徐端光致变色材料浸没透镜光存储技术记录密度

来源：评论

学校读者我要写书评

暂无评论

MOEMS压力传感器的研究进展

引用

红外 2008年第11期29卷 36-40页

作者：王仕超张晓霞王祥斌周勇陈沛然冷洁电子科技大学光电信息学院四川成都610054

微型光机电系统(MOEMS)技术作为一门新兴的技术,已广泛应用于光通信、光显示、数据存储和光学传感等诸多方面,而利用这种技术制作的光学压力传感器更是具有传统压力传感器无法比拟的优点.本文着重介绍了各类MOEMS压力传感器的结构、工... 详细信息

微型光机电系统(MOEMS)技术作为一门新兴的技术,已广泛应用于光通信、光显示、数据存储和光学传感等诸多方面,而利用这种技术制作的光学压力传感器更是具有传统压力传感器无法比拟的优点.本文着重介绍了各类MOEMS压力传感器的结构、工作原理以及制作工艺,最后简要介绍了MOEMS压力传感器阵列的结构和制作工艺.

关键词： MOEMS 光学压力传感器阵列

来源：评论

学校读者我要写书评

暂无评论

Fabrication of Pure Silica Core Multimode Ultraviolet optical Fibre Probes by Tube Etching

引用

Chinese Physics Letters 2007年第10期24卷 2876-2878页

作者：霍鑫潘石吴世法 Institute of Near-field Optics and Nanotechnology Department of Physics Dalian University of Technology Dalian 116024

As a light wave-guide component for transmitting ultraviolet （UV） laser pulses, pure silica core UV fibre probes have attracted a great deal of attention in the near-field optical data storage and bio-medical studies. We fabricate UV fibre probes with tips in dimension of about 2-5μm and taper angle 16° by the tube etching method, using 40% HF acid as etching solution and xylene as overlayer. Probes produced have curvy configuration with smooth surface. The yield of fine probes is rather high and etching operation greatly simplified. With higher damage threshold, pure silica core multimode UV fibre probes can be coupled into more laser power. In addition, using UV light reduces the cutoff wavelength of the fibre probes, which is in favour of increasing the transmission efficiency of the probe. Furthermore, the larger tip dimension helps to enhance the light throughput either. The advances of fabrication technique of UV optical fibre probe may further support the studies of UV light data storage, pulsed laser biosurgery and UV photolithography.

关键词： MICROSCOPY TIPS FIELD

来源：评论

学校读者我要写书评

暂无评论

Three-dimensional endomicroscopy using optical coherence tomography

引用

NATURE PHOTONICS 2007年第12期1卷 709-716页

作者： Adler, Desmond C. Chen, Yu Huber, Robert Schmitt, Joseph Connolly, James Fujimoto, James G. MIT Elect Res Lab Dept Elect & Comp Sci Cambridge 02139 England Univ Munich Fak Phys Lehrstuhl Biomol Opt D-80538 Munich Germany Lightlab Imaging Westford MA 01886 USA Beth Israel Deaconess Med Ctr Dept Pathol Boston MA 02215 USA

optical coherence tomography enables micrometre-scale, subsurface imaging of biological tissue by measuring the magnitude and echo time delay of backscattered light. Endoscopic optical coherence tomography imaging inside the body can be performed using fibre-optic probes. To perform three-dimensional optical coherence tomography endomicroscopy with ultrahigh volumetric resolution, however, requires extremely high imaging speeds. Here we report advances in optical coherence tomography technology using a Fourier-domain mode-locked frequency-swept laser as the light source. The laser, with a 160-nm tuning range at a wavelength of 1,315 nm, can produce images with axial resolutions of 5-7 mm. In vivo three-dimensional optical coherence tomography endomicroscopy is demonstrated at speeds of 100,000 axial lines per second and 50 frames per second. This enables virtual manipulation of tissue geometry, speckle reduction, synthesis of en face views similar to endoscopic images, generation of cross-sectional images with arbitrary orientation, and quantitative measurements of morphology. This technology can be scaled to even higher speeds and will open up three- dimensional optical-coherence-tomography endomicroscopy to a wide range of medical applications.

来源：评论

学校读者我要写书评

暂无评论

optical arbitrary waveform processing of more than 100 spectral comb lines

引用

NATURE PHOTONICS 2007年第8期1卷 463-467页

作者： Jiang, Zhi Huang, Chen-Bin Leaird, Daniel E. Weiner, Andrew M. Purdue Univ Sch Elect & Comp Engn W Lafayette IN 47907 USA

Pulse-shaping techniques, in which user-specified, ultrashort-pulse fields are synthesized by means of parallel manipulation of optical Fourier components, have now been widely adopted(1-6). Mode-locked lasers producing combs of frequency-stabilized spectral lines have resulted in revolutionary advances in frequency metrology(7-11). However, until recently, pulse shapers addressed spectral lines in groups, at low spectral resolution. Line-by-line pulse shaping(12), in which spectral lines are resolved and manipulated individually, leads to a fundamentally new regime for optical arbitrary waveform generation(13), in which the advantages of pulse shaping and of frequency combs are exploited simultaneously. Here we demonstrate programmable line-by-line shaping of more than 100 spectral lines, which constitutes a significant step in scaling towards high waveform complexity. optical arbitrary waveform generation promises to have an impact both in optical science ( allowing, for example, coherent control generalizations of comb-based time - frequency spectroscopies(10)) and in technology (enabling new truly coherent multiwavelength processing concepts for spread-spectrum lightwave communications and light detection and ranging, lidar).

来源：评论

学校读者我要写书评

暂无评论

Photonic-crystal full-colour displays

引用

NATURE PHOTONICS 2007年第8期1卷 468-472页

作者： Arsenault, Andre C. Puzzo, Daniel P. Manners, Ian Ozin, Geoffrey A. Univ Toronto Dept Chem Toronto ON M5S 3H6 Canada Opalux Inc Toronto ON M5S 3H6 Canada Univ Bristol Sch Chem Bristol BS8 1TS Avon England

In our information-rich world, it is becoming increasingly important to develop technologies capable of displaying dynamic and changeable data, for reasons ranging from valuea-dded advertising to environmental sustainability. There is an intense drive at the moment towards paper-like displays, devices having a high reflectivity and contrast to provide viewability in a variety of environments, particularly in sunlight where emissive or backlit devices perform very poorly. The list of possible technologies is extensive, including electrophoretic, cholesteric liquid crystalline, electrochromic, electrodewetting, interferometric and more. Despite tremendous advances, the key drawback of all these existing display options relates to colour. As soon as an RGB ( red, green and blue) colour filter or spatially modulated colour scheme is implemented, substantial light losses are inevitable even if the intrinsic reflectivity of the material is very good.

来源：评论

学校读者我要写书评

暂无评论

微全息多层数字光盘记录技术

引用

记录媒体技术 2007年第5期 25-29页

作者：曹良才何庆声金国藩清华大学精密仪器与机械学系

自从1963年体全息光学数据存储技术发明之后,人们对它进行了深入的研究。体全息存储作为一种三维存储技术,其记录密度可以达到1/λ~3,其中λ为记录波长。同时由于是页面存储方式,数据传输速率很高,这和传统的光盘存储技术有显著的区别... 详细信息

自从1963年体全息光学数据存储技术发明之后,人们对它进行了深入的研究。体全息存储作为一种三维存储技术,其记录密度可以达到1/λ~3,其中λ为记录波长。同时由于是页面存储方式,数据传输速率很高,这和传统的光盘存储技术有显著的区别。最近几年,随着光电技术的进展,性能优良的CMOS探测器、铁电液晶空间光调制器、全息聚合物以及半导体激光器逐渐成熟,系统的成本也在逐渐降低,体全息存储技术取得了较大的进展。

关键词：全息存储技术光盘存储数据存储技术记录密度半导体激光器光学头空间光调制器铁电液晶存储密

来源：评论

学校读者我要写书评

暂无评论

advances in Magnetic Micro Thin-Film Transducers

引用

ECS Transactions 2007年第25期3卷

作者： H. H. Gatzen Christine Ruffert Hanover University

Magnetic Micro Electro-mechanical Systems (Magnetic MEMS) provide transducer capabilities ranging from thin-film storage devices and micro sensors to micro actuator solutions. This paper provides an overview over magnetic thin-film devices developed at the Institute for Microtechnology at the Leibniz Universitaet Hannover`s Center for Production technology (PZH) in Garbsen, Germany. In the area of data storage, it presents a microcoil for optical data storage. In the field of micro sensors it shows two inductive length measurement systems, an eddy current proximity sensor and a micro strain gauge for force measurements. Micro actuators built as linear positioners and as tilting platforms, as well as a new actuator principle based on the magnetic shape memory (MSM) effect conclude the paper.

关键词：

来源：评论

学校读者我要写书评

暂无评论

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案：

请选择收藏分类：

通借通还

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：