Reaching the Shot Noise Limit For $10
Phillip C. D. Hobbs
Laser-based optical measurements are a fundamental technology of our civilization. Their flexibility is amazing: interferometers maintain the accuracy of machine tools, serve as gyroscopes for navigation, do transform spectroscopy, and perform ranging for seismology and gravity wave detection; lidar detects tornadoes, wind shear, and air pollution; other systems play compact disks and scan bar codes in supermarkets. Optical measurements in research include spectroscopy, Doppler velocimetry, aerosol particle monitoring, ellipsometry, interferometry, fiber-based sensing, femtosecond pump/probe studies, and many, many more.
Become a member of OSA or log in to view the full text of this article.
OSA Members get the full text of Optics & Photonics News, plus a variety of other member benefits.