近日,北京大学电子学院区域光纤通信网与新型光通信系统国家重点实验室、北京大学纳光电子前沿科学中心的常林研究员及合作者受邀在知名学术期刊Science上发表题为“Lithium niobate photonics: Unlocking the electromagnetic spectrum”的综述文章,系统回顾了铌酸锂(LiNbO3,或LN)作为产生和控制不同波段电磁波材料的发展历史,并...
A device for transmitting wavelengths of the electromagnetic spectrum from one or more sources to detector means, comprising one or more channel plates each having channels therein into which are disposed conduction elements of a material having a higher index of refraction than the material of the ...
The advent of attosecond laser technology offers unprecedented and unique capacities to unveil the structure and dynamics of matter over spatiotemporal scales down to nanometers and attoseconds. The Chinese scientific community is conceiving an advanced attosecond laser facility encompassing a wide range o...
schild equation dIλ/ds = nσλ[Bλ(t)-Iλ] tells us the spectral intensity Iλ at a temperature t will tend to the value determined by the Planck function Bλ(t), this a function of temperature t and familiar to us as the black body curve when plotted for the full spectrum....
The Nuclear Spectroscopic Telescope Array (NuSTAR) mission has deployed the first orbiting telescopes to focus light in the high-energy X-ray (3–79 keV) range of the electromagnetic spectrum. Our view of the universe in this spectral window has been limited because previous orbiting telescopes ...
使用被引著作索引查找更多的期刊名称缩写,以及书籍和其他出版物名称的缩写。此索引包括Web of Science中所有的被引著作。 单击字母,按照字母顺序浏览期刊列表。 0-9ABCDEFGHIJKLMNOPQRSTUVWXYZ 期刊列表 E & M EKONOMIE A MANAGEMENT E M EKON MANAG E C M T ROUND TABLE ...
The difference is very real: If no relativistic effects were accounted for, a GPS unit that tells you it's a half mile (0.8 km) to the next gas station would be 5 miles (8 km) off after only one day, according to Physics Central. Gold's yellow color The color of gold can be ex...
Here, we combine two imaging modalities that stand at opposite ends of the electromagnetic spectrum, and therefore, can be used as complementary tools to assess structural and chemical information directly in a single neuron. Combining label-free super-resolution microspectroscopy for sub-cellular ...
2b) (Supplementary Note 8). It is clear to see that when L̂∥â, strong MD and ED responses are excited. When L̂⊥â, however, the scattering is extremely suppressed as the momentum matching conditions are no longer met, and the dominant scattering modes lie on the blue side ...
Ultraviolet light is the range of the electromagnetic spectrum between visible light and X-rays. It has frequencies of about 8 × 1014 to 3 x 1016 Hz and wavelengths of about 0.0000004 to 0.000015 inch (10 to 380 nanometers). UV light is a component of sunlight, but it is invisible to...