Sub-nanometer optical linewidth of thulium atoms in rare gas crystals

Abstract

We investigate the 1140 nm magnetic dipole transition of thulium atoms trapped in solid argon and neon. These solids can be straightforwardly grown on any substrate at cryogenic temperatures, making them prime targets for surface sensing applications. Our data are well described by a splitting of the single vacuum transition into three components in both argon and neon, with each component narrower than the 0.8 nm spectrometer resolution. The lifetime of the excited states is 14.6(0.5) ms in argon and 27(3) ms in neon, shorter than in vacuum or in solid helium. We also collected visible laser-induced fluorescence spectroscopy showing broader emission features in the range of 580-600 nm. The narrow infrared features in particular suggest a range of possible applications.

arXiv comment16 pages, 6 figures - accepted at PRA

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Cited by in corpus (6)

• Spin coherence and optical properties of alkali-metal atoms in solid parahydrogen
• Spectroscopy of Rubidium atoms in solid matrices of rare gases: experimental results and theoretical analysis
• High Resolution Spectroscopy of Neutral Yb Atoms in a Solid Ne Matrix
• Radiative properties of rubidium atoms trapped in solid neon and parahydrogen
• Comparison of theory and experiment for radiative characteristics in neutral thulium
• Crystal Fields and Zeeman Effect for Thulium in Solid Argon