Magneto-Optical Trapping (IMAGE) Yale University Caption An optical cavity was used to control the wavelength of some of the lasers used for the magneto-optical trap. Credit Michael Helfenbein Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.