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美国用迄今最薄半导体造出新型纳米激光器（图）
美国 最薄半导体 纳米激光器
2015/3/26
美国科学家们利用迄今最纤薄(仅为三个原子厚)的半导体，制造出一种新型纳米激光器，其不仅能效更高，容易制造且可与目前的电子设备兼容。研究人员表示，这一研究成果为最终制造出用光而非电子传输信息的下一代计算设备奠定了坚实的基础。从医疗到金属切割再到电子产品，激光器都在其中扮演重要角色，但为了满足现代计算、通讯、成像和传感要求，科学家们一直希望能制造出体型更小且耗能更低的激光系统。华盛顿大学和斯坦福大学携...
Beyond silicon: New semiconductor moves spintronics toward reality（图）
Beyond silicon New semiconductor spintronics
2015/3/4
A new semiconductor compound is bringing fresh momentum to the field of spintronics, an emerging breed of computing device that may lead to smaller, faster, less power-hungry electronics.Created from ...
It’s nearly 50 years since Gordon Moore predicted that the density of transistors on an integrated circuit would double every two years. “Moore’s Law” has turned out to be a self-fulfilling prophecy t...
UCLA and USC scientists devise breakthrough technique for mapping temperature in tiny electronic devices
UCLA and USC scientists mapping temperature tiny electronic devices
2015/3/4
Overheating is a major problem for the microprocessors that run our smartphones and computers. But a team of UCLA and USC scientists have made a breakthrough that should enable engineers to design mic...
InGaAs雪崩光电探测器（APD）因具有内部电流增益使其在长距离光通讯和单光子探测等方面受到青睐，其高灵敏度特征也使人们渴望能将其制成阵列器件用于航天遥感等领域，但其高倍增电压带来的均匀性差和不易与读出电路配合等问题限制了在此方面的发展。中国科学院上海微系统与信息技术研究所信息功能材料国家重点实验室研究人员在国家自然科学基金等的支持下通过采用独特设计大幅降低了InGaAs APD的倍增电压，成功...
新技术可显著提升激光成像质量
提升激光成像 质量
2015/1/21
美国耶鲁大学的科学家开发出一种新的半导体激光器，成功解决了长期困扰激光成像技术的“光斑”问题，有望显著提高下一代显微镜、激光投影仪、光刻录、全息摄影以及生物医学成像设备的成像质量。相关论文发表在2015年1月19日出版的美国《国家科学院学报》上。物理学家组织网2015年1月20日报道称，全视场成像应用近几年来已经成为众多研究所关注的焦点，但光源问题却一直未能得到解决。这项由耶鲁大学多个实验室合作完...
Switching to Spintronics（图）
Switching Spintronics
2014/12/30
In a development that holds promise for future magnetic memory and logic devices, researchers with the U.S. Department of Energy (DOE)’s Lawrence Berkeley National Laboratory (Berkeley Lab) and Cornel...
Stacking Two-Dimensional Materials May Lower Cost of Semiconductor Devices（图）
Two-Dimensional Materials Lower Cost Semiconductor Devices
2014/12/30
Semiconductor heterostructures provide a powerful platform to engineer the dynamics of excitons for fundamental and applied interests. However, the functionality of conventional semiconductor heterost...
Unusual Electronic State Found in New Class of Unconventional Superconductors（图）
Unusual Electronic State Unconventional Superconductors
2014/12/30
UPTON, NY—A team of scientists from the U.S. Department of Energy's (DOE) Brookhaven National Laboratory, Columbia Engineering, Columbia Physics and Kyoto University has discovered an unusual form of ...
Researchers have made great progress in recent years in the design and creation of biological circuits — systems that, like electronic circuits, can take a number of different inputs and deliver a par...
Researchers find new way to move atomically thin semiconductors for use in extremely flexible devices（图）
thin semiconductors flexible devices
2014/12/1
Researchers from North Carolina State University have developed a new way to transfer thin semiconductor films, which are only one atom thick, onto arbitrary substrates, paving the way for flexible co...
Computer chips with superconducting circuits — circuits with zero electrical resistance — would be 50 to 100 times as energy-efficient as today’s chips, an attractive trait given the increasing power ...
电线正逐渐淡出人们的日常生活。无绳电话、无线鼠标、无线耳机已不鲜见，无线充电的电动牙刷、智能手机正成为新宠。信息可通过无线电传输，而电能也可以通过电磁感应来传递。近年来，电动汽车专家们正研究电动汽车的无线充电装置。传统的接触式充电当遭遇雨雪、泥泞等天气条件或路况时，有触电风险，相比之下非接触式充电更为舒适和安全。弗劳恩霍夫集成系统和元器件研究所（IISB）的专家们将电磁感应式充电视为未来充电装置的...
Protecting our processors
semiconductor security
2014/10/9
The National Science Foundation (NSF) and Semiconductor Research Corporation (SRC) today announced nine research awards to 10 universities totaling nearly $4 million under a joint program focused on S...
UCSB researchers develop ultrasensitive biosensor from molybdenite semiconductor（图）
ultrasensitive biosensor molybdenite semiconductor
2014/9/12
Move over, graphene. An atomically thin, two-dimensional, ultrasensitive semiconductor material for biosensing developed by researchers at UC Santa Barbara promises to push the boundaries of biosensin...