Patterning challenges for the semiconductor industry are growing as the number of multi-patterned layers being used in the 10nm and beyond nodes increase. Patterning requires highly accurate overlay ...

A revolutionary kind of laser light called an optical frequency comb makes possible a more precise type of atomic clock and many other applications Editor's note: This story was originally posted in ...

There are significantly different architectures for what are known as “atomic” clocks. Optically driven atomic clocks offer a new set of performance attributes. The optical atomic clocks use paired ...