Abstract
Rare earth ions in crystals exhibit narrow spectral features and hyperfine-split ground states with exceptionally long coherence times. These features make them ideal platforms for quantum information processing in the solid state. Recently, we reported on the first high-resolution spectroscopy of single ions in yttrium orthosilicate nanocrystals via the transition at a wavelength of 488 nm. Here we show that individual praseodymium ions can also be detected on the more commonly studied transition at 606 nm. In addition, we present the first measurements of the second-order autocorrelation function, fluorescence lifetime, and emission spectra of single ions in this system as well as their polarization dependencies on both transitions. Furthermore, we demonstrate that by a proper choice of the crystallite, one can obtain narrower spectral lines and, thus, resolve the hyperfine levels of the excited state. We expect our results to make single-ion spectroscopy accessible to a larger scientific community.
Highlights
10 August 2015Commons Attribution 3.0 Rare earth ions in crystals exhibit narrow spectral features and hyperfine-split ground states with licence
Rare earth ions are ubiquitous in many technologies such as solid-state lasers, amplifiers for optical telecommunication, and magnetic materials
They have played a central role in the development of highresolution laser spectroscopy methods such as hole burning and photon echo [1]
Summary
Commons Attribution 3.0 Rare earth ions in crystals exhibit narrow spectral features and hyperfine-split ground states with licence. These features make them ideal platforms for quantum. We reported on the first high-resolution attribution to the author(s) and the title of spectroscopy of single Pr3+ ions in yttrium orthosilicate nanocrystals via the 3H4−3P0 transition at a the work, journal citation and DOI. We present the first measurements of the second-order autocorrelation function, fluorescence lifetime, and emission spectra of single ions in this system as well as their polarization dependencies on both transitions. We demonstrate that by a proper choice of the crystallite, one can obtain narrower spectral lines and, resolve the hyperfine levels of the excited state. We expect our results to make single-ion spectroscopy accessible to a larger scientific community
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