The SciencesOctober 8, 2008
Rulers of Light: Using Lasers to Measure Distance and Time
A revolutionary kind of laser light called an optical frequency comb makes possible a more precise type of atomic clock and many other applications
Stories by John Hall
The SciencesApril 1, 2008
Rulers of Light
A revolutionary kind of laser light called an optical frequency comb makes possible a more precise type of atomic clock and many other applications