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Atomic imperfections move quantum communication network closer to reality
Atomic imperfections move quantum communication network closer
2017/6/23
An international team led by the University of Chicago’s Institute for Molecular Engineering has discovered how to manipulate a weird quantum interface between light and matter in silicon carbide alon...
新型探测器Xenon-1T帮助寻找暗物质
新型探测器 Xenon-1T 暗物质
2017/6/13
根据理论推测，宇宙大部分由不可见的“暗物质”组成，由于他们之间的引力才保持宇宙星系处于平衡状态。根据各种间接观测结果，科学家估计暗物质是正常物质的5倍以上，但迄今尚未获得有关暗物质存在的直接证据。寻找暗物质粒子是当今世界基础科学的一个重要前沿领域，欧洲、美国、中国的科学家竞争激烈。瑞士苏黎世大学近日举行新闻发布会称，该校参与的寻找暗物质的国际合作计划“Xenon-Kollaboration”在该领...
Researchers Find New Way to Control Light with Electric Fields
Researchers Control Light Electric Fields
2017/5/25
We report that the refractive index of transition metal dichacolgenide (TMDC) monolayers, such as MoS2, WS2, and WSe2, can be substantially tuned by > 60% in the imaginary part and > 20% in the real p...
瑞士尝试用钠镁材料替代锂开发蓄电池
瑞士 钠镁材料 锂 蓄电池
2017/5/18
锂电池目前已获得广泛应用，但其具有明显的缺点，一是含锂的材料来源有限，二是目前锂电池中使用可燃的液态电解液，易燃易爆，安全风险较大。在瑞士国家科研基金会的支持下，瑞士联邦材料研究所、日内瓦大学、保罗谢尔研究所自2015年起联合展开了一项科研项目，尝试用钠镁材料替代锂开发蓄电池，取得阶段性成果。科研团队提出一种全固体蓄电池设计，电池中使用的是固体电解质而不是一般常用的液态电解质，这种固态电解质是具有...
俄罗斯研制出新型激光监视器
俄罗斯 激光监视器
2017/5/4
俄罗斯托木斯克理工大学和俄科学院西伯利亚分院大气光学研究所的研究人员研制出新型激光监视器，它能够观察诸如焊接等人眼所无法察觉的快速工序过程。此前，研发团队在单束激光器基础上，研制出了监视器原型机。这种新型激光监视器能够获得更清晰的图像，甚至能观察到工序中伴随的X射线辐射。
Self-assembling polymers provide thin nanowire template
Self-assembling polymers thin nanowire template
2017/4/11
For the chips in our computers and smartphones to get faster and faster, their components – the circuits and wires through which signals flow – have to get smaller and smaller. The miniaturization of ...
Tiny Black Holes Enable a New Type of Photodetector for High-Speed Data
Tiny Black Holes Enable New Type Photodetector High-Speed Data
2017/4/3
Tiny “black holes” on a silicon wafer make for a new type of photodetector that could move more data at lower cost around the world or across a data center. The technology, developed by electrical eng...
乌克兰科学家研发纳米级超薄硒化铟
乌克兰 研发 纳米级超薄硒化铟
2017/3/7
纳米级超薄硒化铟是一种具有独特性能的类石墨烯新半导体材料，其厚度从一层（~0.83 nm）到几十层不等。这种新半导体材料的电学和光学性能研究是在2010年物理学诺贝尔奖得主—英国曼彻斯特大学教授安德烈·海姆的实验室进行的。
New Design Results in Compact,Highly Efficient Frequency Comb
New Design Results Compact Highly Efficient Frequency Comb
2017/3/6
Northwestern Engineering researchers have designed a quantum cascade laser (QCL) frequency comb that is dramatically more efficient than previous iterations. Led by Manijeh Razeghi, researchers i...
Chiral Metamaterial Produces Record Optical Shift Under Incremental Power Modulation
Chiral Metamaterial Produces Record Optical Shift Under Incremental Power Modulation
2017/3/1
Georgia Institute of Technology researchers have demonstrated an optical metamaterial whose chiroptical properties in the nonlinear regime produce a significant spectral shift with power levels in the...
半导体激光块为激光器系统增效
半导体激光块 激光器系统 增效
2017/2/21
由俄罗斯、希腊和哈萨克斯坦科学家组成的国际研究团队开发出一种新方法，能大大提高医学应用等领域激光器系统的效率。有关研究刊登在近日出版的《自然·科学报告》杂志上。据俄罗斯国家研究型工艺技术大学（NUST MISIS）消息，该校科研小组与希腊和哈萨克斯坦的同行们合作，制造出一种相连的半导体纳米激光块，并首次在这种大块半导体激光中发现了涡流嵌合体状态，这种嵌合体能对激光器系统特性产生影响。
Penn Engineers Overcome a Hurdle in Growing a Revolutionary Optical Metamaterial
Penn Engineers Revolutionary Optical Metamaterial
2017/2/21
When John Crocker, a professor of chemical and biomolecular engineering in the University of Pennsylvania’s School of Engineering and Applied Science was a graduate student, his advisor...
韦伯太空望远镜有望明年发射
韦伯太空望远镜 探测
2017/2/9
据探索频道旗下网站日前消息称，人类有史以来观测能力最强的望远镜——詹姆斯·韦伯太空望远镜（JWST）发射升空进入倒计时。不过，该望远镜的首次使用权“花落谁家”仍是未知数。
Dual-function nanorod LEDs could make multifunctional displays
Dual-function nanorod LEDs multifunctional displays
2017/2/9
Cellphones and other devices could soon be controlled with touchless gestures and charge themselves using ambient light, thanks to new LED arrays that can both emit and detect light.Made of tiny nanor...
New research provides scientists looking at single molecules or into deep space a more accurate way to analyze imaging data captured by microscopes, telescopes and other devices.The improved method fo...