The program in atomic spectroscopy at NIST provides accurate reference data on spectral lines and energy levels for a wide variety of important applications. Our spectrometers, among the most powerful of their type in the world, can record spectra from the extreme ultraviolet (wavelength = 1 nm) to the infrared (wavelength = 18 000 nm) and include a 10.7 m normal-incidence spectrograph, a 10.7 m grazing incidence spectrograph, a high resolution Fourier transform spectrometer, and a high accuracy Fabry-Pérot laser wavemeter. The Data Center compiles wavelengths, energy levels, and transition probabilities that support numerous applications in industry and the scientific community.
The Atomic Spectroscopy Group at NIST has a long history of contributions to optical science and metrology. Please read Joseph Reader's report on the group's history for more information.
Spectroscopy of Engineered Atoms—Experiments with atomic systems designed to have features more favorable for improved measurements of atomic properties and constants of nature.
Atomic Spectroscopy Data Center —Critical compilations of atomic energy levels, transition wavelengths, and transition probabilities. Online databases.
Electron Beam Ion Trap (EBIT) Facility—The NIST EBIT Facility is used to investigate the science and applications of highly charged ions.
Technical Highlights Atomic Physics Division—The strategy of the Atomic Physics Division is to develop and apply atomic physics research methods, and particulary the interaction between atoms and electromagnetic fields, to achieve fundamental …
High-Resolution Atomic Spectroscopy—Accurate measurements of atomic transitions using diffraction grating spectrographs, Fourier transform spectrometers, and laser spectroscopy.
Plasma Metrology—Measurement techniques in support of commercial and scientific uses of plasmas.
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