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Science fiction is full of fanciful devices that allow light to interact forcefully with matter, from light sabers to photon-drive rockets. In recent years, science has begun to catch up; some results...
1 billion suns:World’s brightest laser sparks new behavior in light
1 billion suns World’s brightest laser sparks in light
2017/7/24
By focusing laser light to a brightness 1 billion times greater than the surface of the sun — the brightest light ever produced on Earth — the physicists have observed changes in a vision-enabling int...
激光偏振检测可知太空垃圾成分
激光偏振检测 太空垃圾 美国麻省理工学院
2017/6/22
美国麻省理工学院（MIT）的工程师最近开发出一种激光偏振检测新技术，不仅能确定太空垃圾位置，还能分析其成分。
在地球空间轨道上，数以亿计的太空垃圾高速旋转着，给航天器和卫星带来巨大威胁。目前，美国国家航空航天局（NASA）和国防部在用陆基望远镜和激光雷达（Ladars）跟踪17000块碎片，但这一系统只能确定目标的位置。研究人员指出，新技术能分析出一块残骸由什么组成，有助于确定其质量、动量及可能...
韩国将研发超高分辨率光学卫星
韩国 超高分辨率 光学卫星
2017/5/19
韩国航空宇宙产业公司（KAI）近日表示，将在2021年前开发出可分辨出公路上行驶的小型汽车和中型汽车的超高分辨率光学卫星。该公司拟投资3亿美元研发多用途实用卫星7号，这意味着韩国将正式进军卫星产业。多用途实用卫星7号系统和搭载体将由韩国航宇研究院制造，KAI负责研发绕地球旋转进行摄像的卫星本体。本体上将搭载0.3米以下的光学照像机和红外线传感器，照像机上配备高机动姿态控制系统，因此可以进行多种姿态...
CCNY physicists demonstrate photonic hypercrystals for control of light-matter interaction
CCNY physicists photonic hypercrystals light-matter interaction
2017/7/20
Control of light-matter interaction is central to fundamental phenomena and technologies such as photosynthesis, lasers, LEDs and solar cells. City College of New York researchers have now demonstrate...
PowerPoint&LED Projector Enable New Technique for Self-Folding Origami
PowerPoint LED Projector Enable Technique for Self-Folding Origami
2017/7/19
Researchers at the Georgia Institute of Technology and Peking University have found a new use for the ubiquitous PowerPoint slide: Producing self-folding three-dimensional origami structures from phot...
俄罗斯和法国合作研发水星外气层光谱分析仪
俄罗斯 法国 水星外气层光谱 分析仪
2017/3/9
俄罗斯航天集团和法国国家太空研究中心近日签署合作协议，共同研发水星紫外线光谱分析仪（PHEBUS）部件。该光谱分析仪将安装在“贝皮可伦坡”开发项目欧洲宇航局的水星轨道飞行器上，分析仪采用极紫外光谱真空紫外区55—155纳米和远紫外区145—315纳米的双频分析结构，利用旋转镜进行近轨360°的观测。
Group blazes path to efficient,eco-friendly deep-ultraviolet LED
Group eco-friendly deep-ultraviolet LED
2017/3/14
The darkest form of ultraviolet light, known as UV-C, is unique because of its reputation as a killer – of harmful organisms.With wavelengths of between 200 and 280 nanometers, this particular form of...
Lead dressed like gold:Laser-altered molecules cast alchemy in a different light
Lead dressed like gold Laser-altered molecules cast alchemy different light
2017/3/14
Since the Middle Ages, alchemists have sought to transmute elements, the most famous example being the long quest to turn lead into gold. Transmutation has been realized in modern times, but on a minu...
'Lossless' metamaterial could boost efficiency of lasers and other light-based devices
Lossless metamaterial lasers other light-based devices
2017/3/14
Engineers at the University of California San Diego have developed a material that could reduce signal losses in photonic devices. The advance has the potential to boost the efficiency of various ligh...
Coal mine dust lowers spectral reflectance of Arctic snow by up to 84 percent
Coal mine dust lowers spectral reflectance Arctic snow up to 84 percent
2017/2/16
Dust released by an active coal mine in Svalbard, Norway, reduced the spectral reflectance of nearby snow and ice by up to 84 percent, according to new University of Colorado Boulder-led research.The ...
New Laser Based on Unusual Physics Phenomenon Could Improve Telecommunications,Computing and More
New Laser Based Unusual Physics Phenomenon Could Telecommunications Computing
2017/2/16
Researchers at the University of California San Diego have demonstrated the world’s first laser based on an unconventional wave physics phenomenon called bound states in the continuum. The technology ...
Next-Generation Optics Offer the Widest Real-Time Views of Vast Regions of the Sun
Next-Generation Optics Widest Real-Time Views the Sun
2017/2/16
A groundbreaking new optical device, developed at NJIT’s Big Bear Solar Observatory (BBSO) to correct images of the Sun distorted by multiple layers of atmospheric turbulence, is providing scientists ...
Advance in intense pulsed light sintering opens door to improved electronics manufacturing
intense pulsed light sintering opens door electronics manufacturing
2017/1/9
Faster production of advanced, flexible electronics is among the potential benefits of a discovery by researchers at Oregon State University’s College of Engineering.Taking a deeper look at photonic s...