The technique of magnetic depolarisation of resonance fluorescence has been compared with that of beatfrequency measurement at 633 nm as a method for testing the quality of sealed iodine cells. It has been found that the results of the two tests correlate well. The repeatability obtainable by the magnetic-depolarisation technique is similar to that normally achieved in cell comparison by beat-frequency measurement. The former method also verifies the quality of the NPL iodine cells by comparison with linewidth measurements made elsewhere.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.