In 1983, NIST redefined the meter based on the speed of light, marking a major advancement in measurement standards. This was made possible by precise measurements of laser light frequency and wavelength in NIST labs. The new definition improved measurement accuracy and became the global standard.
In 1987, NIST scientist Kam Lau developed the first laser tracking interferometer, revolutionizing precision manufacturing. These systems allow precise measurement and assembly of large objects, with applications in aerospace, automotive, and other industries.
In 1988, NIST physicist William Phillips achieved a breakthrough in laser cooling, cooling neutral sodium atoms to 40 microKelvins – six times colder than previously thought possible. His work laid the foundation for laser cooling techniques and earned him a share of the 1997 Nobel Prize in physics.
Source: https://www.nist.gov/history/nists-role-laser-measurements-and-applications/1980s
Keywords: metrology, interferometer, laser, precision manufacturing
