These pages contain information on atomic ions used in quantum optics, quantum computing, and other atomic physics experiments. It was originally based on pages maintained and hosted by the Monroe group (their new version can be found here).
Wavelengths are generally taken from the NIST Atomic Spectra Database which lists air wavelengths for 200 nm < λ < 2000 nm and vacuum wavelengths for all others.
Source files for this web site are on GitHub. If you notice an error, or would like your group's page linked to from an ion page, fork the repository, make changes, and submit a pull request. Alternatively, open a new issue on GitHub.