Scientists have found a way to achieve negative refraction—where light bends the "wrong" way—using carefully arranged atomic ...

For the first time, scientists have demonstrated that negative refraction can be achieved using atomic arrays - without the ...

The invention – called the optical lattice clock – is a thousand times more accurate than cesium atomic clocks used for international timekeeping and is a contender for redefining how long a ...

A research team at POSTECH has developed a novel multidimensional sampling theory to overcome the limitations of flat optics. Their study not only identifies the constraints of conventional sampling ...

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.

For the necessary comparisons with other clock systems, two other optical clocks and one microwave clock from PTB were included: an ytterbium single ion clock, a strontium lattice clock and a cesium ...