New atomic clocks are more accurate than those used to define the second, suggesting the definition might need to change ...

从古埃及的日晷到现代的原子钟，人类对时间测量的精度不断提升。而如今，光学钟的精确度已超越了当前以铯-133原子跃迁定义的“秒”。这引发了一个关键问题：我们是否应该重新定义时间的基本单位？本文将系统解析当前时间计量的框架、光学钟的革命性突破，以及重新定 ...

For the first time, scientists have demonstrated that negative refraction can be achieved using atomic arrays.

Abstract: The improvement of light absorption is a major change for optical detectors. In this research ... a SiO2 layer as insulator and a patterned gold (Au) as metal lattice. The main phenomena for ...

The ability to store information has evolved from punch-card looms to modern smartphones. Every technological advancement has ...

An international team led by physicists at Penn State and Columbia University has developed a novel approach to maintain ...

Optical physics is the study of the fundamental properties of light and its interaction with matter. This includes classical optical phenomena such as reflection, refraction, diffraction and ...

From Stacked Nano-Sheet to Fork-Sheet and CFET Devices” was published by researchers at Imec and Ghent University, et al. Abstract “After a short description of the evolution of ...