搜索结果: 271-285 共查到“国际动态 光学工程”相关记录449条 . 查询时间(2.343 秒)
Berkeley Lab researchers have developed a nano-sized optical antenna that can greatly enhance the spontaneous emission of light from atoms, molecules and semiconductor quantum dots. This advance opens...
Spotlight on light
Spotlight on light
2015/3/4
The United Nations' International Year of Light was launched in the City of Light (Paris, France) on Monday, and National Science Foundation (NSF) Director France Córdova was there to illumi...
德国科学家开发出了有望成为信息传输新设备的纳米灯
德国科学家 信息传输新设备 纳米灯
2015/1/15
最近，马普学会固态研究所的科学家们开发出了一种新光源，通过单分子把电脉冲转换成光脉冲，该分子就像一个光控晶体管的开关，这个开关甚至还能调节光的强度。由于分子打开和关闭的速度极快，这种光源能以千兆赫频率将电信号转换成光信号。虽然这样的分子光源产生的光很微弱，但已经可以用肉眼清晰分辨，因此将有望成为一种新的、有效的信息传输设备。
美国开发出“个人热管理系统”纳米衣
美国 个人热管理系统 纳米
2015/1/9
美国斯坦福大学的研究人员近日开发出一种采用纳米线编织的新型衣服，既产生热量又可以保持来自身体内的温度，比普通衣服要暖和得多。此项技术有助于节省大量建筑能耗，减少对传统能源的依赖，该研究成果发表在最新一期ACS《纳米快报》期刊上。
“分区供电法”可大幅提高激光器效率
分区供电法 激光器效率
2014/11/25
激光与现代社会密不可分，从CD播放器到军用武器装备，随处都能看到激光的身影，但对大型装备而言，能量易损、效率不高却是人们不得不面对的一个问题。据物理学家组织网近日报道，美国普林斯顿大学的科学家发现，通过精心设计激光器内的能量传递区域，可解决这一问题，大幅提高其发光效率。他们开发出一种数学方法来优化电能传递模式，并让激光的效率获得数倍的提升。借助该技术有望生产出灵敏度更高、耗电更少的激光器。相关论文...
(BOSTON) — DNA has garnered attention for its potential as a programmable material platform that could spawn entire new and revolutionary nanodevices in computer science, microscopy, biology, and more...
NYU researchers break nano barrier to engineer the first protein microfiber（图）
nano Protein micro fiber
2014/12/1
Researchers at the New York University Polytechnic School of Engineering have broken new ground in the development of proteins that form specialized fibers used in medicine and nanotechnology. For as ...
NYU researchers break nano barrier to engineer the first protein microfiber
Nano engineering Protein micro fiber
2014/10/30
Researchers at the New York University Polytechnic School of Engineering have broken new ground in the development of proteins that form specialized fibers used in medicine and nanotechnology. For as ...
University of Oregon chemists provide a detailed view of traps that disrupt energy flow, possibly pointing toward improved charge-carrying devices
George NazinEUGENE, Ore. — Oct. 21, 2014 — Universit...
Imaging electric charge propagating along microbial nanowires
Imaging charge microbial nanowires
2014/10/30
AMHERST, Mass. -– The claim by microbiologist Derek Lovley and colleagues at the University of Massachusetts Amherst that the microbe Geobacter produces tiny electrical wires, called microbial nanowir...
(BOSTON) — DNA has garnered attention for its potential as a programmable material platform that could spawn entire new and revolutionary nanodevices in computer science, microscopy, biology, and more...
Observing the quantum behavior of light is a big part of Alan Migdall’s research at the Joint Quantum Institute. Many of his experiments depend on observing light in the form of photons---the particl...
For many years, the focus of brain mapping was to examine changes in the brain that occur when people are attentively engaged in an activity. No one spent much time thinking about what happens to the ...
Automated imaging system looks underground to help improve crops（图）
Automated imaging system crops
2014/12/1
Plant scientists are working to improve important food crops such as rice, maize, and beans to meet the food needs of a growing world population. However, boosting crop output will require improving m...
Automated imaging system looks underground to help improve crops
Automatic imaging system imaging
2014/10/16
Plant scientists are working to improve important food crops such as rice, maize, and beans to meet the food needs of a growing world population. However, boosting crop output will require improving m...