Multidimensional sampling theory reduces noise to push flat optics boundaries
A research team at POSTECH has developed a novel multidimensional sampling theory to overcome the limitations of flat optics.
来自MSN2 个月
World's first compact and robust high-precision optical lattice clock with a 250L volume ...
A compact optical lattice clock with a volume of 250 liters has been developed. The system includes a physics package for conducting spectroscopy on the clock transition within a vacuum chamber ...
earth14 天
Most accurate optical atomic clock ever made will redefine the meaning of a 'second'
Scientists developed a highly accurate optical ion clock, improving time measurement precision by 1,000 times.
Optics14 天
Optical atomic clock achieves record accuracy redefining the second
In an optical atomic clock, atoms are irradiated with laser light. If the laser has exactly the right frequency, the atoms change their quantum mechanical state. All external influences on the atoms ...
朝日新聞社4 年
Time proven to pass faster atop Tokyo Skytree than on ground
Without Katori's custom-made timekeeper, the experiment wouldn't have been possible, as conventional optical lattice clocks are so mammoth in size that just one can fill an entire laboratory.