09/12/2026
In the late 1990s, NIST researcher Jan Hall and his colleagues created a high-tech “ruler” for measuring light, known as a frequency comb.
You may have never heard of a frequency comb, but it’s revolutionized atomic clocks and many other areas of precise measurement. In 2005, Hall shared the Nobel Prize in Physics for the achievement.
Thanks to its compact size, the frequency comb is now used for precise measurements, medical diagnostics and more. It’s one of many examples of NIST’s research making a big impact by moving our science out of labs and into the world.
Learn more in our latest Taking Measure blog post: https://www.nist.gov/blogs/taking-measure/nist-inventions-are-powering-our-world